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    Archived pages: 656 . Archive date: 2013-10.

  • Title: Safecast
    Descriptive info: .. About.. Maps.. FAQ.. Submit.. Download Data.. English.. 日本語.. Safecast is a global sensor network for collecting and sharing radiation measurements to empower people with data about their environments.. Alternate visualization frequency of samples.. The magi behind all things iOS in Safecast Land, Nick Dolezal, is working hard on the new version of the Safecast app (which will allow on demand refreshing of the map data) decided to whip up these alternate visualizations of the Safecast data.. These maps show the frequency of samples taken NOT READINGS OF THOSE.. [.. ].. Decon or Con? How is remediation being managed, and how effective is it?.. HOW EFFECTIVE IS DECONTAMINATION ANYWAY? Does the Japanese government have a clear plan for decontaminating Fukushima Prefecture? Are the aims they’ve stated really feasible? Is anyone really able to keep track of the changing standards and guidelines? Lately the ministries tasked with managing this work, as well as spokespersons from various corners, seem to be.. Safecast Air Force (drone program).. The above video is a hexacopter with an onboard bGeigie Nano taking radiation readings in flight and broadcasting live via wifi.. It s the result of the just finished week long Safecast hackathon that just took place in Cambridge, MA.. There were a number of reasons to focus on a drone during this hackathon.. Of course.. Monitoring Fallout Decay.. One of the great utilities of the Safecast project is the ability to collect and analyze environmental data on an unprecedented scale.. As Safecast passes the two year mark with collecting radiation data in Japan it is now possible to begin to look back over the changes in radioactivity across different parts of the country.. The bGeigie Nano Kit.. The biggest limitation Safecast has faced in collecting data is the limited availability of our workhorse device, the bGeigie.. The design works great, but it s expensive (each one costs us about $1000) and time consuming (building one can take an entire week) which results in us having limited numbers of them to keep in use.. SAFECAST bGeigie Nano Building Workshop and Good Design Award reception party at Loftwork, Saturday Oct.. 19, 2013.. October 8, 2013 05:44.. SAFECAST is proud to announce that we have been awarded a Good Design Award for 2013, in the “Services and Systems for the Public” category.. http://www.. g-mark.. org/award/describe/40575.. SAFECAST was founded shortly after the start of the Fukushima nuclear disaster in March, 2011.. Independent and volunteer-run, SAFECAST has developed hardware and software systems for rapidly gathering accurate radiation data and making it easily accessible to the public via the internet and an iOS app.. To date SAFECAST has collected and mapped more than 13 million data points, covering Fukushima and the rest of Japan as well as many locations overseas.. www.. safecast.. org.. To celebrate our Good Design award, on Saturday Oct.. 19, 2013, SAFECAST will hold a daylong bGeigie Nano building workshop on the 10th floor of Loftwork in Shibuya, and a thank you party immediately following.. Please join us! It s your chance to build an award-winning radiation detector with assistance from the designers, and learn how to contribute radiation data you ve collected to our public database.. Schedule:.. Date: Saturday Oct.. 10:00 Doors open.. 10:30 Workshop starts.. 17:00 Workshop closes.. 18:00-21:00 Party.. Fees: Workshop: 45,000 yen (to cover the cost of a bGeigie Nano kit);.. Party: 1,000 yen.. Contact SAFECAST :.. Kiki: kiki@safecast.. bGeigie Nano workshop in Aizu, June 2013.. Taking commemorate photo together.. Posted by.. naozumi.. on October 8, 2013 05:44.. Comments Off.. Contributor.. Safecast wins Good Design Award.. October 2, 2013 10:53.. Excited to announce that Safecast has won a prestigious.. Good Design Award for 2013.. We re hoping to produce a limited run of bGeigie Nano s to commemorate the award stay tuned for details on this.. sean.. on October 2, 2013 10:53.. News.. bGeigie Nano PCB Available Now.. September 18, 2013 15:15.. Want to build up a bGeigie Nano from scratch? You re gonna need a PCB, so we just posted the schematic on OSH.. You can download it or order a PCB directly from them if you want to give it a shot.. What s kind of cool here is that the standard bGeigie Nano s have blue PCBs and the ones from OSH will be purple, so it s kind of a limited edition / status symbol if you have a purple one.. Pair it up with a.. Yellow Pelican Micro Case.. and you can have an.. LA Lakers.. edition.. Of course if you don t want to source every single part yourself you can still.. pick up the complete kit from Medcom.. on September 18, 2013 15:15.. Hardware.. Safecast iOS app now has on demand data updates.. September 9, 2013 12:13.. Previously the map data on the Safecast iOS app could only be updated when the app itself was updated.. With the newest version that is no longer and issue and the map data can be refreshed on demand.. This is huge and exciting make sure to update the app now for the latest version!.. on September 9, 2013 12:13.. Mobile reporting.. September 6, 2013 07:58.. These maps show the frequency of samples taken NOT READINGS OF THOSE SAMPLES just showing how often a specific place has been measured.. In this example, a location (like Fukushima) that has been measured repeatedly would show hot.. Thought this was a really interesting look at the work Safecast has done over the last 2+ years.. Japan.. Continue reading.. on September 6, 2013 07:58.. Featured.. ,.. Ethan Zuckerman Goes Safecasting (and gets kicked out by armed guards).. August 29, 2013 12:25.. Ethan Zuckerman, director the.. Center for Civic Media at MIT.. and friend of Safecast posse everywhere, took a bGeigie Nano for a spin the other day with the intent  ...   weekend as well.. We held what will hopefully be the first of many bGeigie workshops based on our new bGeigie Nano kit.. The idea being, get a bunch of people together in one room and build bGeigie Nano s and everyone can help each other along and it can be an awesome experience for everyone.. Plus, it generates lots of new bGeigies to go out in the world and collect more data.. The workshop was a huge success, we built 14 bGeigies in total which is a testament to how simple and easy the new kit is to put together.. Keep in mind, it used to take us a week to build 2 or 3 of these things.. And some of the people building them had never soldered anything in their lives before this.. Exciting to say the least.. Our plan is to hold the next of these in Los Angeles sometime later this year, but ideally we ll have them popping up all over the world soon.. If you d like to join us for the build in Los Angeles, or want to host a build in your own city please get in touch.. In the meantime you can.. order your own bGeigie Nano kit here.. for $450.. (Photos by Pieter, Jurgen and Sean.. ).. More photos by Pieter.. on July 3, 2013 18:09.. Events.. Safecast workshop (bGeigie-nano) in Aizu.. June 24, 2013 21:03.. Written by: Norio Watanabe.. Safecast Volunteer from Koriyama.. b-Geigie-nano.. On a cloudy day in early summer, Safecast members and volunteers gathered in Aizu-Wakamatsu to hold a bGeigie Nano-assembling workshop.. The workshop took place at the IT company Eyes, JAPAN Co.. , Ltd.. courtesy of the company president Mr.. Yamadera.. At Eyes, JAPAN in Aizu-Wakamatsu City.. Through the first round of measurements by car, Safecast mostly completed the radiation map of Fukushima Prefecture in 2011.. The map is available on the Safecast.. org website.. Data has been collected at 10 million points so far and is being updated every day.. The radiation map is becoming more detailed as volunteers take measurements while either cycling or walking in order to measure radiation in places that cannot be accessed by car.. The bGeigie Nano is small, light and much easier to use than the original b-Geigie.. It has a measuring mode and a recording mode.. In measuring mode, you can take the bGeigie Nano out of the case and measure surface contamination.. The measurements can be converted from CPM to Bq/m2.. In recording mode, CPM measurements are recorded on the microSD card along with the GPS coordinates, the time and the name of the person taking the measurements (the owner’s name is registered in each bGeigie Nano).. The data can be shared and shown on the map by uploading it onto the Safecast website.. If you have soldering experience, assembling the bGeigie Nano should be relatively easy (although, with my old eyes, some parts are difficult without a magnifier).. It does not require detailed soldering of ICs for example because most of the circuit parts are provided in the form of commercially available add-on boards, called “breakouts.. ” All you need to do is solder resistors, capacitors, transistors, switches, connectors, and some wires.. (If your kit contains any incorrect parts, I recommend that you use the opportunity to visit nearby parts shops or to communicate with a Safecast member or volunteer who has experience in making the bGeigie Nano.. Both are fun experiences.. Assembling the bGeigie Nano takes about an hour if you’re experienced.. It may take half a day if you are a beginner and need guidance.. The bGeigie Nano is not yet sold as a finished product, and it gives you the opportunity to enjoy learning how it works while assembling it.. You will also appreciate that despite its high performance, the price of the kit is low.. on June 24, 2013 21:03.. Over 10,000,000 Data Points.. June 15, 2013 23:30.. So this just happened:.. Actually it happened last week, and we blew past it without even noticing which point rolled it over.. Officially, to date, Safecast has collected and published over 10,000,000 individual data points.. That s a huge milestone for us, and when you consider that it took us 6 months from March 11, 2011 to collect our first million, and we were just passing 4,000,000 towards the end of 2012 this is shows how our collection efforts continue to ramp up.. Obviously a lot of this is due to our incredibly dedicated volunteers.. Earlier this year one of our volunteer teams, GLC,.. broke 1,000,000 measurements they had collected themselves.. which was terribly exciting and with the recent release of our.. bGeigie Nano Kit.. which allows anyone to use the exact same hardware and system we do to collect and submit data, we only expect this to continue to speed up.. We re celebrating this milestone in Aizu at the.. Eyes, Japan.. office hosting a nano-build-a-thon where we made more nano s in a 48 hour period than ever before.. More on that soon.. on June 15, 2013 23:30.. 1 Response.. Older Entries.. Interested in helping out? Please.. fill out this interest form.. and we'll get in touch soon!.. Safecast Discussion List.. Email:.. Safecast ボランティア非公式日本語 ML.. Our base of operations in Japan is at the.. Tokyo Hackerspace.. Come check us out.. Recent Comments.. Daniel Van Riper.. on.. mark sullivan.. Bernd Nurnberger.. Sean on.. Our Office.. Rob on.. Citizen science and air quality monitoring in Tokyo.. Contact.. info@safecast.. japan@safecast.. press@safecast.. Interested in helping?.. For secure/encrypted communications:.. sean@safecast.. -.. [public key].. pieter@safecast.. Links.. Safecast Discussion mailing list.. Safecast on Facebook.. Safecast on Facebook (日本語).. Safecast on Flickr.. Safecast on Google+.. Safecast on Slideshare.. Safecast on Twitter.. Safecast on Twitter (日本語).. Safecast Videos on Vimeo.. Terms and Conditions.. Suffusion theme by Sayontan Sinha..

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  • Title: About Safecast » Safecast
    Descriptive info: About Safecast.. OUR TEAM.. |.. HISTORY.. PRESS.. DEVICES.. THANKS.. OFFICE LOCATION.. Safecast logos can be downloaded here.. [Above: 3 Minute Safecast Documentary by Adrian Storey; Below: PBS NewsHour science correspondent Miles O'Brien reports on Safecast].. Safecast is a global project working to empower people with data, primarily by mapping radiation levels and building a sensor network, enabling people to both contribute and freely use the data collected.. After the 3/11 earthquake and resulting nuclear situation at Fukushima Diachi it became clear that people wanted more data than what was available.. Through joint efforts with partners such as International Medcom, Keio University, The John S.. and James L.. Knight Foundation and GlobalGiving, Safecast has been building a radiation sensor network comprised of static and mobile sensors actively being deployed around Japan – both near the exclusion zone and elsewhere in the country.. Safecast supports the idea that more data – freely available data – is better.. Our goal is not to single out any individual source of data  ...   longterm work that Safecast engages in will address these needs.. Safecast is based in the US but is currently focused on outreach efforts in Japan.. Our team.. includes contributors from around the world.. Safecaster JAM did a fantastic interview for the IEEE Spectrum podcast which.. can be listened to online here.. Here is a.. SAFECAST flyer.. (Japanese English) that you can print out.. Some Key Facts About Safecast.. Safecast was created 1 week after the 3/11 Japan earthquake.. Small core team, with more than 100 regular volunteers worldwide.. Team concentrated in Tokyo, with smaller support teams globally.. Initially funded via Kickstarter and private donations, Safecast has received a grant from The John S.. Knight Foundation.. Currently deployed sensors: 35 mobile / 50 handheld / 50 static.. Another 300 devices will be active by the end 2011.. As of July 2012, over 3,500,000 data points collected.. All data collected and published by Safecast is open and available under.. CC0.. dedication.. Currently designing networkable sensor devices for production in 2012..

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  • Title: Maps » Safecast
    Descriptive info: SAFECAST MAP.. The Safecast Map depicts over 4,000,000 radiation data points collected by the Safecast team.. FUSION MAP.. Created by Kalin Kozhuharov, this map displays Safecast mobile data around the world using Google s Fusion Tables.. INTERPOLATION MAP.. Created by Lionel Bergeret, this map is based on Safecast mobile data in Japan and attempts to fill in the space between the individual measurements.. AGGREGATE FEEDS MAP.. This map includes a combination of radiation data points published by the Japanese government, several NGOs and submissions sent to Safecast.. FAILED ROBOT.. Created by  ...   well as governmental sources.. SCANNING THE EARTH.. This Scanning The Earth visualization of the same data Yahoo! Japan used in the previous map, but showing a history of readings from each sensor.. STE is a collaboration between Safecast and Keio University.. SAFECAST DRIVEMAPS.. Individual maps for drives performed by Safecast volunteers.. YAHOO! JAPAN.. Yahoo! Japan has built a map displaying SAFECAST static sensor data.. FUKUSHIMA PREFECTURE RADIATION MAP.. The Fukushima Government has created a world wide map of radiation measurements powered by SAFECAST data.. *** You can.. download the Safecast data here..

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  • Title: FAQ » Safecast
    Descriptive info: Safecast is a volunteer driven non-profit organization.. with the goal of creating useful, granular environmental data for research and educational purposes.. Initially focused on radiation levels in Japan, Safecast is now trying to get a radiation baseline for the planet as well as measure other environmental factors such as air quality.. All Safecast data is published, free of charge, under a CC0 designation.. Safecast is apolitical.. , and takes no stance for or against nuclear power.. Safecast is pro-data.. and committed to giving people accurate information with which they can draw their own conclusions.. Safecast is funded by several grants and charitable foundations, however financial contributors and donors have no input on  ...   taken free of charge.. Safecast will regularly assess where equipment is best used and will reclaim and redistribute elsewhere from time to time, with priority being given to areas that have not yet been measured.. Safecast is a registered trademark.. and can not be used without permission.. Given nature of crowd sourcing and distributed teams, all data and equipment provided by Safecast is best effort, no warrenties or guarenties are provided.. For more information about the data collected by Safecast.. click here.. For more information about the licenses used by Safecast.. For more information about Safecast volunteers.. For more information about radiation.. For more information about the current state of things in Japan..

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  • Title: Alternate visualization – frequency of samples » Safecast
    Descriptive info: Tokyo.. Fukushima.. Los Angeles.. Sorry, the comment form is closed at this time..

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  • Title: Decon or Con? How is remediation being managed, and how effective is it? » Safecast
    Descriptive info: Part 1: GOALS and POLICIES:.. Recently the Asahi Shimbun published a news item about changes in government decontamination plans titled.. Government secretly backtracks on Fukushima decontamination goal.. To summarize the situation as described in the article:.. The govt initially considered it feasible to decontaminate residential areas of 11 municipalities in Fukushima Prefecture to a exposure level of 1 millisievert annually (1mSv/y) of additional radiation (above natural background), by March 2014.. The work is behind schedule in five of the municipalities, and will need to be continued through fiscal 2014.. 25 municipalities have said that radiation levels have yet to decline to 1mSv/y in some of their areas even after decontamination work was completed.. The government will not pay for additional decontamination work in areas where work has already been done, i.. e.. , if they tried and couldn t get levels down to 1mSv/y, they will not allow a second round of work.. Most of the areas in question are places where residents were required to evacuate, and adequate decontamination is a prerequisite for their return.. The article also notes that, Citizens are also having growing doubts on the cost-benefit performance of the decontamination work.. Evacuation zones as of August, 2011.. Official map of evacuation zones, as of May 7, 2013.. Link to map pictured above.. English-language government document from March 30, 2012, giving basic definitions of the 3 types of evacuation zones, in terms of dose rates, etc.. It s important to understand that the policies and practices in place in areas which were evacuated by government decree are different from how unevacuated areas are being handled.. The problems surrounding how the evacuation zones themselves were initially determined, the political decisionmaking, the failure to utilize all the available information about which areas were at risk (particularly SPEEDI), the lateness with which the decision to evacuate areas to the northwest was made, including Iitate and parts of Namie, Minamisoma, Katsurao, and Kawamata: all of these contentious issues are too involved to be discussed in detail here.. But it can t be emphasized enough that every aspect of the management and implementation of the movement of populations, of the remediation process, of health monitoring, of food monitoring, of just about everything that has happened in Fukushima since March, 2011, is rooted in these hastily-made, flawed decisions about where to draw the lines dividing those who were allowed to stay from those who weren t.. Decontamination, or remediation, of evacuated areas is being directly managed by the national government (.. chokkatsu josen.. ), and almost all the news we hear, including the above, relates to these efforts.. The attention paid to this is understandable, because the return of evacuees and their health and livelihoods are at stake.. Also, the areas with the highest ground contamination, and therefore the most difficult to decontaminate, lie within this zone.. Other areas, such as the cities of Fukushima and Koriyama, manage their own decontamination.. In most cases subsidies help support it, but it is essentially a local effort.. In fact, parts of these cites are more contaminated than some of the evacuated zones, and although the government has tried to reshape the boundaries step by step based on actual contamination levels, overriding the original 20km circular arc, centralized oversight of decontamination is not based on the dose rates as much as it is a legacy based on where the government told people they had to leave.. In fact, when the Act on Special Measures Concerning the Handling of Radioactive Pollution” came into force in January, 2012, areas that were deemed necessary to receive decontamination assistance were divided into two areas overall, the “Special Decontamination Area”, where decontamination is implemented by the national government, and the “Intensive Contamination Survey Area”, where decontamination is implemented by each municipality with financial and technical supports by the national government.. Another way to describe these are evacuated areas and unevacuated areas.. The “Special Decontamination Area” was initially further divided into two categories, the “Restricted Area” (located within 20km radius from the Power Station) and the “Deliberate Evacuation Area” (areas where the annual cumulative dose could exceed 20mSv); together these included 11 municipalities in Fukushima prefecture.. These areas were reconfigured later into the three zones described above.. The “Intensive Contamination Survey Area”, where decontamination is implemented by each municipality with financial and technical supports by the national government, includes not only unevacuated towns in Fukushima, but over 100 municipalities in 8 prefectures where additional doses over 1mSv/y were determined to be likely.. Because of this, not only is Fukushima receiving decontamination assistance, but also much of Tohoku and Kanto.. In order to manage this large project, the Ministry of the Environment has 500 staff, at its headquarters in Tokyo and in two regional offices; the Fukushima Office for Environmental Restoration (in Fukushima City) covers 53 municipalities in Fukushima, Iwate, and Miyagi, and has five branch offices, while the Kanto Regional Environment Office in Saitama covers 51 municipalities in Tochigi, Ibaraki, Gunma, Chiba, and Saitama.. Maps of “Intensive Contamination Survey Area” and “Special Decontamination Area”.. Description and maps of Special Decontamination Area and Intensive Contamination Survey Area.. Organizational Chart for MOE Decontamination Management.. In terms of dose reduction targets decided upon in early 2012, the following charts from the MOE s.. Off-site Decontamination Measures.. homepage describe the basic goals.. Government Exposure Reduction Targets.. Decontamination Policy for Special Decontamination Area.. Finally, these documents describe policies and procedures in place at the end of 2012, and report progress towards the goals the government had set:.. Decontamination Policies and Procedures in Japan.. Progress on Offsite Cleanup Efforts in Japan.. The underlying purpose of evacuation and decontamination, of course, is to minimize harm to people from the radiation the accident released into the environment.. This is not the same as keeping people safe, however, because absolute safety is known to be unattainable.. Rather, the pragmatic goal is to keep people safe enough.. A lot is known about the hazards of radiation, but not really enough to allow specialists to assess the health risks in most parts of Fukushima with absolute confidence.. The Japanese government relied on the IAEA for guidance about how much radioactive contamination was too much, which is what most governments would do when faced with a similar disaster, and the 1mSv/yr and 20mSv/yr standards for evacuation and decontamination emerged mainly from the government s consultations with the IAEA.. 20mSv/yr can be called the don t let people live with this much radiation, at least not for a long time level.. So in areas with this level of contamination, residents were required to be evacuated, and can be allowed to return if decontamination is effective in reducing their potential doses significantly, and if the level of contamination can realistically be reduced to 1mSv/yr or less in the span of several years.. In this sense, from the standpoint of the government and the IAEA, the 1mSv/yr level can be called the clean for all practical purposes level.. Radiation health specialists continue to debate the risks these dose levels present, but it seems even the most outspoken anti-nuclear activists and concerned residents in Japan have been willing to accept an extra 1mSv/yr; and while the point is often made by people with questionable motives, the fact is that adding even more than 1mSv/yr to background radiation levels in Japan would still keep it well within the typical range of normal background radiation worldwide, which is about 1 to 3 mSv/yr (not including so-called high natural background radiation areas like Ramsar, Iran, and Kerala, India, which are many times higher).. Finally, it s important to point out that these calculations and estimates deal with people s risk from external contamination exclusively, and not with internal contamination, particularly from food, which warrants its own separate guidelines and monitoring, and which needs to be carefully accounted for when evaluating people s overall exposure risks.. Both the 1mSv/yr and 20mSv/yr target levels are for additional doses beyond the pre-disaster background.. The government s dose rate calculations are not based on simple arithmetic, but assume dose reduction benefits from the shielding provided by buildings, and reflect an attempt to account for time spent indoors.. To determine the amount of radiation coming from contamination, the pre-existing background radiation needs to be subtracted from whatever reading is obtained in any one spot.. Terrestrial background gamma radiation (from the ground) in Fukushima ranges from about 0.. 03-0.. 06μSv/hr, higher towards the coast in the east and the mountains in the west, and lower in the center of the prefecture.. In its allowable dose calculations, however, the government uses a figure of 0.. 04μSv/hr for terrestrial gamma radiation.. To calculate the allowable level of additional radiation beyond that, instead of simply multiplying air dose rates by 24 hours and 365 days, the government assumes that people would spend 16 hours a day indoors, during which they would only be exposed to 40% of the dose.. They arrive at a total figure of 0.. 23 μSv/h allowed in order to stay under 1mSv/yr from the additional radiation.. That is: 0.. 04μSv/h [from background] plus 0.. 19μSv/h [from accident] = 0.. 23 μSv/hr total.. Japanese-language MOE page describing 1mSv/yr dose rate calculations, April 2011.. Similarly, the 20 mSv/year limit becomes an hourly dose of 3.. 8 μSv/h, instead of the 2.. 28 μSv/h that simply multiplying 24 hours x 365 days would lead to.. The government reports linked below state that schoolchildren whose school yard gives a 3.. 8μSv/h dose would actually receive only 10mSv/yr once actual school days and hours spent indoors were taken into account.. Japanese-language MEXT page describing schoolyard dose rate calculations, April 2011.. English-language explanation of schoolyard dose rate calculations.. On the one hand, this seems like the government is fudging the calculations in order to find a way to allow people to get higher doses, but subsequent personal dosimeter ( glass badge ) surveys of residents in most parts of Fukushima Prefecture have indicated that for most residents actual received doses are significantly lower than the estimated environmental dose rates based on these calculations would suggest.. Others say that the government should subtract more from current readings to more accurately reflect the pre-existing background in the most affected areas closer to the coast, and should try to find a way to accurately subtract the contribution from cosmic radiation as well; the government simply ignores the 0.. 03μSv/hr Japan gets from cosmic radiation as too difficult to measure accurately with standard Nal scintillators under field conditions (a questionable assumption for several reasons).. Adjusting the terrestrial background estimates to be more accurate, and including the contribution from cosmic radiation as well, would mean a higher natural dose would be subtracted from current measurements, and generally result in lower contamination readings.. But the 40%,16-hours-a-day shielding coefficient is probably not accurate for most residents; quite a few probably spend less time indoors, while some spend more, and the shielding afforded by buildings varies widely with their size, placement, and type of construction (indeed, recent surveys have shown that some Fukushima residents, albeit very few, actually receive a higher dose indoors at home than outdoors).. Some observers point out that the 0.. 23μSv/h allowable dose rate is arbitrary in so many respects that it should be replaced with evacuation guidelines based on continually-gathered, individual data reflecting the actual doses being received, replacing hazy estimates of what people might get with accurate measurements of what they actually are getting.. Still, we can understand the concern and suspicion that met these calculation decisions.. Residents deserve a significant margin of safety, and decisions based on best case scenarios are questionable.. Nevertheless some fairly arbitrary assumptions like these underlie the entire decontamination project.. As the IAEA pointed out in late 2011:.. In the Japanese administrative system, municipalities and prefectures have strong autonomy and play significant roles in disaster management and environmental protection, including the remediation process.. The national government provides the legal framework, policies, standards, and financial and technical support, and conducts remediation for areas which are in “emergency exposure situations”.. In this case, “emergency exposure situations” specifically refers to areas where citizens could be exposed to an annual dose above 20 mSv.. Local governments implement remediation plans for areas which are in “existing exposure situations”, i.. areas below 20 mSv/y, and the IAEA reported that in Japan, In these areas the ultimate decision whether to remediate or not rests with the landowner.. It was never so simple.. This combination of local autonomy and the necessity of adhering to centrally-determined guidelines has had many real-world consequences in Fukushima, for better and for worse.. The dominance of the central government overall cannot be underestimated; it sets the legal conditions and consequences, and can choose to provide or withhold funds.. In so many aspects of post-3.. 11 recovery, the central government makes decisions, the prefectures try to stay on the good side of the central gov t, and the local governments try to stay on the good side of the prefectures.. Because there are many unevacuated towns, and each can make its own decisions about what, where, and when to decontaminate, and because policies and practices have been evolving over time, it s very difficult to collect enough information to gain a good overview.. But things often work better when the local governments are handling the details.. To give one example, a contact in who lives in Koriyama pointed us to the relevant parts of the city s website.. The front page of Koriyama City s site has a link to decontamination info, which leads to maps, schedules, tenders, and results.. Work commissioned in November 2012 was being completed in late June 2013, while work commissioned in December 2012 had not started yet.. A typical map available on the Koriyama City web site, showing areas of the city for which decontamination work bids are being sought.. This one is from Oct.. , 2012.. Koriyama City decontamination info page.. Official Koriyama City list of areas going out to bid for decontamination work (with maps).. Koriyama City decontamination general plan, last revised in January 2013.. The general plan file linked to above includes a detailed map of radiation levels in Koriyama and surrounding towns, an explanation of how decisions are being reached, and timelines with achievement goals.. They clearly point out how they are adhering the central government s targets, prioritizing areas where children live and go to school, and aiming for a 50% dose rate reduction overall by August of this year (60% in areas with children), and to get the levels below 1 mSv/y (in addition to natural background) by 2015.. Based on the quantity of detailed information available, and the clear efforts it has taken to inform citizens through PTAs, neighborhood associations, volunteer groups, and companies, and to pay attention to the feedback they have gotten, Koriyama seems to be managing its decontamination very transparently.. Our contact described having received clear announcements of many.. setsumei-kai.. ( explanatory meetings, i.. Q A sessions) with local officials, and attending several, and feels that the local government has been very responsive.. Not all the residents feel that way, however, and a group of citizens filed a lawsuit last year demanding financial compensation for the voluntary evacuation of their children from the city.. The plaintiffs lost.. Asahi newspaper, April 15, 2013: Lawsuit seeks evacuation of Fukushima children.. Yahoo news, April 25, 2013: Japan court rejects demand to evacuate children.. Koriyama City leaders seem to have realized that transparency and seeking the involvement of citizens is the best course of action.. They don t seem downplay or underestimate the challenges the city faces, either.. Some people will continue to insist that parts of the city will always be too radioactive to live in safely, while the local government is making the case that it will only really be safe, and people will only really feel safe, if their decontamination goals are met within a reasonable time.. We can t say if this is the case or not in other Fukushima municipalities which are managing their own decontamination.. We d welcome comments from anyone with first-hand observations to offer.. The decontamination of forcibly evacuated areas is a different kettle of fish entirely.. It s hard to say that the process has been transparent, responsive, cooperative, or efficient by any standards.. The background to the recent backtracking on decontamination goals in evacuated areas is that the Japanese government initially intended to just decontaminate down to a 20mSv/yr level, and only accepted demands from the public to set a 1mSv/yr level after much outcry and protest.. In fact, the government had sought the guidance of the IAEA when setting these levels, and in October 2011, the IAEA recommended setting initial decontamination targets in the range of 1-20 mSv/y, with a long term target of keeping the estimated annual exposure dose below 1 mSv.. According to graphs in the documentation at the time, the long-term that was being considered was about 20 years.. In other words, 20 mSv/y was considered a realistic goal in all but the most hard-hit places, while 1 mSv/y was accepted from the beginning as an end goal, but only in some unspecified but distant future.. IAEA Final Report of the International Mission on Remediation of Large Contaminated Areas Off-site the  ...   be helpful.. She immediately knew which pamphlet we were talking about, and asked us the pages of the particular maps we were interested in.. After a few minutes on hold, she came back to say that they could find out for us, but that it would take several days, and asked us to call back the following week.. Though we were surprised they asked for so much time, we agreed, and in the meantime we went to Fukushima and measured two sites, one in Iitate and one in Kawamata; another site we were interested in in Namie was inaccessible without a pass, which we had not applied for.. We discuss our findings in detail further in.. Part 3.. below.. When we called the Environment Ministry again after our return we got a different representative on the phone, who had the info ready.. She directed us to another document online, a very detailed set of JAEA reports from March 2012, on which the pamphlet we had was based:.. JAEA decontamination trial reports, March, 2012.. It was accessed from this page:.. JAEA Major Initiaves page.. It was the mother lode.. It was also a head-scratcher.. The Things that were verified pamphlet we talked about was released in Febury 2013, even though according to this larger report the data had been available somewhere since March 2012.. Why did it take nearly a year to make it publicly available? We suspect that the change in jurisdiction from JAEA to the Environment Ministry is partly to blame, as is the time involved in rolling out a carefully-designed PR push, of which the pamphlet is only one small part.. But while we may not have been on the trail of this information single-mindedly, we have been keeping an eye out for it, have asked many colleagues and volunteers who live in Fukushima, have searched the web fairly frequently, and had never seen any of this.. We can only conclude that it s another case of making it As Difficult As Possible for people to find information, as we described in our post about the monitoring droids:.. Information, Misinformation, Disinformation (or, “These aren’t the droids you’re looking for.. ”).. To their credit, it s now easier to find this kind of information about decontamination, a lot of which is accessible from this friendly page:.. Environment Ministry s Josen ( decontamination )Plaza page.. The Environment Ministry s friendly-looking online access page for decontamination information, called Decontamination Plaza.. And once you re there, a bit more hunting will turn up useful English-language reports like these:.. Overview of Decontamination Projects.. Report of the Results of the Decontamination Model Project.. But here s the thing: Not only does the whole friendly facade and design language of this PR blitz smack of doublethink we re talking about health risks here, not vacation travel spots, so this feels like a bizarre attempt to normalize radioactive contamination they re still not really getting it right.. So much information that residents need to know is not yet easily available.. We told the Environment Ministry phone representative that we had been looking for detailed before-after information for months, and that even with their help we still can t find everything we re looking for, and asked what they tell citizens who call asking for details about specific areas.. She said, Yes, I understand how frustrating it is.. We try to help everyone who calls, but sometimes all we can do is suggest they consult the web pages of particular towns.. That is, We know we have the information somewhere, but we re so disorganized and dysfunctional that a lot of people will get better results by calling their town office instead.. I could tell it pained her to admit it though.. It s worth laying out some suggestions, even at this late date, about the kind of information regarding decontamination that should be made easily available in a consistent fashion for each site being decontaminated.. As described earlier, some towns outside the evacuation zone, like Koriyama, already provide most of this:.. Precise location, ideally with Google map coordinates.. Who signed off on it, i.. e what government jurisdiction and the responsible individuals.. Who is contracted to do the work, including the chain of contracts leading upward to large corporations.. What the initial radiation level monitoring showed (with independent verification).. When work was scheduled to start and end, and when it actually did.. What the final radiation level monitoring showed (with independent verification).. Where the debris went.. What the total cost was.. We suspect that all of this information in fact exists, and it should simply be a matter of making it public and accessible.. We d go even further and ask that it be made machine-readable.. Part 3: OUR COMPARISONS.. At the difficult site we checked in Kawamata, the ultimate gains from decontamination were very modest.. It might make more sense in cases like these to wait for nature to do more of the work.. In Iitate, on the other hand, the gains appear to have been significant.. (CLICK TO ENLARGE).. Was it worthwhile for the government to spend so much time and money decontaminating difficult sites inside the evacuation zone in Fukushima? The only way to find out was to measure a few of them ourselves and try to calculate what their dose rates would have been if they had not been decontaminated.. We were only able to check a couple of sites this time, but the results provide a lot of food for thought.. Decontamination sites we checked, showing main road access; the Namie site was inaccessible.. We initially planned our route to allow us to check three sites, one in Kusano, Iitate, one in Sakashita, Kawamata, and another in Matsukiyama, Namie, which we intended to hit first.. All were detailed in the Things that were verified pamphlet published by the government earlier this year.. About three kilometers short of our goal, however, at the Namie border, we found the road blocked.. It has often been a bit unpredictable where exactly roadblocks will be placed, but in this case it was right where the official demarcation line is for Area 3: Difficult to Return (pink on the map).. These roads were accessible several months earlier, and as successive evacuation zone maps reveal, this northwest portion of Namie is an example of access being made more highly restricted.. We continued to Kawamata and Iitate, and as we measured the sites in those towns we immediately noticed that our readings were lower than the after readings given in the pamphlet.. At the time we didn t know when those measurements were taken, but at least we could confirm that the gov t had not grossly understated the levels.. Based on the appearance of the sites, their overgrowth, etc.. , we suspected that several months at least had passed.. In fact, as we eventually learned, it had been about a year and a half.. With the information we received later, we understood that the sites featured in the pamphlet were the original pilot test remediation sites, chosen for their range of topography, land uses, and radiation levels.. They had been selected by the fall of 2011, measured in Nov.. , 2011, decontaminated in most cases beginning in Dec.. , 2011, completed generally in Jan.. , 2012, and measured again in Feb.. The tables and maps below give details.. (The fine print in the detailed government documents says that in both the Kawamata and the Iitate sites, snow covered the ground when post-decontamination measurements were taken in Feb.. In one document, for every site except Kawamata it clearly states that this was taken into consideration when stating the final levels, specifically, that they adjusted for the shielding effect of the snow.. In the case of Iitate, this was 30% from the maximum 25cm of snow that was present there.. Fairly full explanations are given about how adjustments were made for snow on other sites, but we had to search through three detailed documents before we could confirm that this had also been done for the Kawamata site as well.. KAWAMATA SITE:.. The site in Kawamata is a steeply sloped hillside covered with terraced fields; it has extremely uneven topography and may places for water, and hence contamination, to collect.. Sakashita , KAWAMATA.. Gov’t measurements:.. Before decontamination: (Nov 2011) 1.. 2-4.. 4 μSv/h.. After decontamination: (Feb 2012) 1.. 2-3.. 2 μSv/h.. This is an up to 27% reduction.. Gov’t average: overall 3.. 0 μSv/h reduced to 1.. 7μSv/h; on asphalt and other areas, half of this.. SAFECAST measurements:.. (Jun 2013) 0.. 72-1.. 75 μSv/h.. This is 37-60% reduction from gov’t “before” levels; 37-45% from “after” levels.. The pamphlet indicates that at the Kawamata site, gov’t decontamination produced the following reductions:.. fields: 54%.. houses: 43%.. roads: 35%.. forests: 27%.. We know what the actual decay and weathering rates were between Feb.. 2012 and when SAFECAST measured in June 2013.. If we apply those same reduction rates to the levels the gov’t measred before decontaminating, while it would not be absolutely precise for a variety of reasons, it would nevertheless give us a close enough approximation to estimate how much the decontamination contributed to the overall reduction in dose rates, and how much the levels might have decreased if no decontamination had been done.. We estimate that without decontamination, the levels at the Kawamata site would have been:.. 0.. 71 2.. 3 μSv/h instead of 0.. IITATE SITE:.. The site in Iitate is mainly school grounds, including large buildings, parking lots, and sandy fields.. Kusano, IITATE:.. Before decontamination: (Dec 2011) 3.. 2-6.. After decontamination: (Feb 2012) 0.. 8-3.. This is a 75-50% reduction.. Gov’t average: schoolgrounds: 4.. 6μSv/h reduced to 1.. 7μSv/h.. Woods and houses: 3.. 6μSv/h reduced to1.. 6μSv/h.. 25-2.. 45 μSv/h overall.. This is about a 93-62% reduction from gov’t “before” levels; 25-70% from “after” levels.. 25-0.. 94 μSv/h playgrounds only.. So natural decay and weathering reduced the dose rate 25-70% from Feb 2012 to June 2013.. (The highest reduction, 70%, was at the school playground, much of which nevertheless remains above 0.. 23μSv/h, and is above the acceptable level.. At the Iitate site, the gov’t claimed reductions of:.. large buildings: 63%.. houses: 57%.. fields: 40%.. roads: 37%.. forests: 32%.. We estimate that without decontamination, the levels at the Iitate site would have been:.. 95 4.. 7 μSv/h instead of 0.. 23 2.. 3 μSv/h.. The Kawamata site seems to have a fairly even reduction of 40% or so since the grounds were decontaminated in early 2012.. The Iitate site has decreased about 25% at the highest range, but over 50% at the lowest.. The highest levels there are at the edges of the site, on a slope covered with trees.. The lowest spot is an area in the center of the large playground, which is still slightly over 1 mSv/y additional radiation.. REASONS THIS IS NOT A PRECISE ESTIMATE:.. There are several reasons why this estimate is not precise, some of which have been alluded to already.. One is that we were able to measure the actual rate of decay and weathering from Feb.. 2012 to June 2013 at each site, and applied those same rates to the period from Dec.. 2011 to June 2013 for our if not decontaminated estimates.. As we can see, the earlier months experienced some of the steepest natural declines due to radioactive decay, and we aren t really able to factor that into our estimates closely.. Secondly, the decontamination process at each site involved a large disruption to the ground surface and other parts of the environment which are likely to have affected the subsequent rate of weathering afterward, possibly accelerating it.. We can t really gauge this enough to account for it, either.. Thirdly, although both of these sites have been evacuated since 2011, there has been a bit of activity at each, some of which may have affected the actual dose rates we were able to measure.. And finally, while we concentrated on measuring the areas which were highest and lowest on the government maps, and taking a broad sample in-between, we would prefer to have more sample points, which time did not allow.. So take these as fairly close ballpark estimates, and no more.. As we expected, the results really are case-by-case.. Every large site like these encompasses a range of dose rates, and focussing on averages can be deceptive.. Experience and prior information told us to expect different rates of reduction in high dose rate areas as opposed to low dose rate ones, and this proved to be the case.. A look at the.. graphs.. above will show the overall relative gains, and how the various levels compare to the government s 1mSv/yr and 20mSv/yr guidelines.. Notably, decontaminating the Iitate site allowed the lowest dose areas (points at the center of the flat, sandy school grounds) to fall to 0.. 25 μSv/h in mid-2013 instead of the 0.. 95 μSv/h it likely would have been if it hadn t been decontaminated and had only experienced natural decay and weathering.. This is a very large reduction percentage wise, but still above the government s 1mSv/yr limit.. The high dose rate parts of the site, on the other hand, would probably have been about 4.. 7 μSv/h by now without decontamination, but are about half that because of it.. This is a sizable gain, and one way to look at it is that while it is insufficiently effective in itself, it has accelerated the process of decline through decay by quite a few years.. For the Kawamata site, there was almost no change on the low dose rate end, because the decontamination was not very effective there; the dose rate would probably be the same as it is now, about 0.. 72 μSv/h, with or without the decontamination.. This is several times the government s 1mSv/yr limit.. At the high end, the gains were greater, and decontamination allowed the dose rate to fall to 1.. 75 μSv/h, instead of around 2.. This is about a 25% reduction, which is meaningful, but it may well be more efficient, not to mention cost-effective, to allow time and natural weathering to take its course in similar situations.. The rate of natural weathering should already be tapering off, because most of the loose and easily washed away contaminants have probably already found their way to the watershed (becoming a different kind of problem).. Because of the 2-year half-life of Cs-134, which represented about half the overall initial Caesium contamination (by activity) a lot of it decayed over the first two years (half of the initial Cs-134, or 25% by activity of the total).. Nevertheless, the next several years should see another large reduction due to the continued natural decay of Cs-134, while Cs-137 has a half-life of 30.. 7 years, so it will take until 2044 for half of it to be gone.. This graph released by the IAEA in late 2011 showed its estimate that radioactive contamination from the Fukushima Daiichi NPP would have naturally decayed by 35-40% by mid-2013 (in reality it has been more than 50% in some areas, thanks to weathering).. Natural decay should lead to a 50% or more reduction overall by mid-2014, and a 70% reduction by 2018.. After that the decline will be much slower.. The graph also illustrates that although Cs134 and Cs137 were initially present in almost equal amounts when measured by activity (Bq), due to it s emission characteristics Cs134 has so far contributed a much higher proportion of the risk to humans in terms of exposure.. It decays much more quickly (having a half-life of 2 years, compared to Cs137 s 30.. 7 years), and its relatively rapid disappearance means a rapid overall decline in dose rates over the first several years.. The IAEA seems to have anticipated these kinds of mixed results, and in October, 2011, observed:.. The Team notes that the main strategy adopted by the Japanese authorities relates to the concept of decontamination.. At this stage, it is important to stress that decontamination is only one of the many available options to be used to achieve the reduction of doses in the case of radioactivity concentrations in the environment caused by an accidental release.. They went on to describe the problems that might result from the huge amount of contaminated soil and debris that blanket decontamination would produce.. And in fact, we ve barely touched on the issues surrounding the disposal of debris here, but they are equally serious and contentious.. Similar discussions have certainly been occurring in the halls of power as bureaucrats and pursestring-holders evaluate the decontamination results.. And indeed, these kinds of calculations have probably played a major role in the decisions, described in the Asahi newspaper article at the start of this series, not to attempt further decontamination in places where it has proven ineffective.. In situations where intensive decontamination has not produced a large enough decrease in dose rate, specifically where the decrease has not been much larger than what would have been produced by natural decay and weathering, it probably makes more sense to hunker down for a long wait instead.. And for residents of much of the exclusion zone, the wait will probably be very long indeed..

    Original link path: /2013/08/decon-or-con-how-is-remediation-being-managed-and-how-effective-is-it/
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  • Title: Safecast Air Force (drone program) » Safecast
    Descriptive info: May 6, 2013 12:30.. Of course drones are cool and exciting, so that helped to keep people interested.. On a practical level there s also a need for something like this that would enable us to take measurements in a location that would be too dangerous or just plain unreachable for people, such as a steep hillside or a contaminated area.. We could also plot out a flight path and let a drone measure a huge field much quicker than a person might be able to navigate the area.. Thinking about our data in relation to a drone also allowed us to consider some existing issues from a different perspective and tackle them with renewed vigor.. The concept of a Safecast Air Force that is a modular drone platform with a number of interchangeable elements was originally suggested by Ray Ozzie and and over the week Safecasters Naim Busek, Joe Moross, Pieter Franken, Steven Wright, Ariel Levi Simons, Haiyan Zhang, Paul Campbell, Anthony DeVincenzi, Samuel Luescher and I took it from idea to reality.. We started off with a prebuilt Hexacopter  ...   Drone 2.. 0 Quadricopter.. as a prebuilt platform as well.. We have a lot of work to do reducing weight of devices for that to work, but if we can prove a concept works on a more expensive design and then scale it back to a minimum viable product that easier for people to contribute to that s an exciting prospect as well.. If we step back for a moment, this modular system becomes quite elegant.. The drone is the platform but could easily be swapped out for a bike, a car, or carried by a person.. The sensors for this proof of concept were radiation, but could also be swapped for air quality or anything else you wanted to monitor.. We were using wifi to upload the data, but there are any number of other data transfer methods that could be deployed here.. We ll continue to develop this program and are excited to see how it helps spring board our other initiatives.. A handful of earlier test flight videos can be found after the jump.. on May 6, 2013 12:30..

    Original link path: /2013/05/safecast-air-force-drone-program/
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  • Title: Monitoring Fallout Decay » Safecast
    Descriptive info: May 3, 2013 06:00.. As Safecast passes the two year mark with collecting radiation data in Japan it is now possible to begin to look back over the changes in radioactivity across different parts of the country and see where this may all be heading.. Radioactivity in Inzai, Japan.. 18 months worth of data.. Radioactivity in Iitate, Japan.. 24 months worth of data.. A scan of two cities.. While events at the Fukushima Daiichi plant have led to the common association of all of Japan with radiation we have collected enough data to show that large swaths of the country remain near background (Approximately 30-40 counts per minute).. One example of this is the city of Inzai, which lies between Tokyo and Narita International Airport, and is 193km southwest of the meltdown site.. As the first graph shows background levels slightly above what is considered typical, but there is no appreciable change from the middle of 2011 to the end of 2012 in terms of radioactivity.. The next city in our study, Iitate, is about 38km northwest of the Fukushima Daiichi reactor site, and shows both more significant exposure and a noticeable decay curve.. What is notable about the decay curve is that a decay half-life can be.. estimated to reasonable precision.. with the best-fit exponential decay function.. From this method we can estimate the decay half-life for surface radioactivity to be only one year from the two years starting in the middle of 2011.. This is notable as the decay half-life for the two dominant radioisotopes, Cs-134 and Cs-137, are two and thirty years respectively.. This implies that there are additional  ...   AM.. 8 years.. Data Link.. 6791903N.. 7352474E.. Distance to Fukushima Daiichi reactor: 39km NW.. Start time: 5/6/2011 4:41:58 PM.. Stop time: 4/29/2013 8:03:56 AM.. 1 years.. latitude: 35.. 8323485N.. 1458154E.. Distance to Fukushima Daiichi reactor: 193km NW.. Start time: 6/26/2011 5:05:39 PM.. Stop time: 11/17/2012 11:04:28 PM.. Estimated half-life: NA.. 5131313N.. 3938904E.. Distance to Fukushima Daiichi reactor: 57km W.. Start time = 5/25/2011 3:21:34 PM.. Stop time = 5/1/2013 9:14:07 AM.. 4 years.. 4945855N.. longitude: 141.. 0006538E.. Distance to Fukushima Daiichi reactor: 9km N.. Start time: 9/16/2011 11:56:10 PM.. Stop time: 5/1/13 7:44.. 2826405N.. 9934863E.. Distance to Fukushima Daiichi reactor: 16km S.. Start time: 9/24/2011 1:12:37 AM.. Stop time: 4/26/13 5:12.. Estimated half-life: 2.. 7 years.. 4044283.. 9833544.. Distance to Fukushima Daiichi reactor: 5km SW.. Start time: 9/24/2011 1:28:22 AM.. Stop time: 1/1/2013 8:40:52 AM.. Estimated half-life: 0.. 6 years.. Where to go from here?.. All of the above decay curves were generated using uniform squares of four square kilometers in area.. While this decreases spatial resolution it is useful for gathering significant statistics for a given location.. Further analysis could compare the relationship between the area of a study and the characteristics of the decay curve.. Similarly, this first look doesn t consider the geography of the location.. It would stand to reason that the topography, soil, and climate of a given location should have a noticeable impact on the rate of change in surface radioactivity.. Generally, as the number of readings increases over time, the significance of the analysis from any location should improve.. levi.. on May 3, 2013 06:00.. Sensor Network.. Safecast Air: How do we determine what to measure?..

    Original link path: /2013/05/en-monitoring-fallout-decay/
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  • Title: The bGeigie Nano Kit » Safecast
    Descriptive info: March 22, 2013 05:17.. We have way more people who want to drive around with bGeigie s than we have bGeigie s to be driven around.. To solve this issue, we ve created the bGeigie Nano, and thusly the bGeigie Nano Kit.. As you might guess the Nano is a smaller form factor which makes it much easier to carry around and use, yet it s even more feature packed than the original bGeigie.. In fact many Safecast team members use the Nano s exclusively now and carry them at all times, the compact size makes this incredibly easy to do.. Most importantly, the nano is a fairly simple kit comprised of readily available off the shelf parts.. If you know how to solder (or want to spent 10 minutes learning how) you can build the Nano Kit in an evening, and be Safecasting the next day.. You can take individual spot readings, or attach it to your car and drive around collecting geotagged radiation data that can be.. uploaded to Safecast via our API upload page.. This is the.. exact.. same process we use.. The design (hardware and software) is open source (just like all Safecast projects) so you are invited to hunt down each part on your own, but to make things simple we ve teamed up with.. Medcom.. to provide a kit that you can build yourself.. The cost will be $450 and they will be selling them on a first come first serve basis in batches as the kits are produced.. If you want one, fill out this.. bGeigie Nano interest form.. and someone will follow up with you in short order.. More photos and technical details after the jump.. [All photos by Pieter Franken].. Technical Specifications:.. -  ...   or Wifi supported through Xbee socket send data wirelessly to bGeigie Ninja or smartphone (Experimental; wireless components not included in kit).. - Blue Indicator LED for every nuclide detected (with cool afterglow).. - Red Indicator LED for “recording” (bGeigie mode) or “alarm” (xGeigie mode) indicators.. - Orange indicator LED for charge status.. - Battery status indicator on OLED display, with low Battery alarm.. - Function button (user assignable).. - Buzzer (can be switched off).. - 2000mAh battery for approx.. 40-hour nonstop operation in bGeigie mode.. USB chargeable.. - Memory: 2Gb SD micro card (included).. - Hot switch between bGeigie and xGeigie mode (in xGeigie mode recording is paused).. - Many parameters configureable through config file on SD card (e.. g.. user name, conversion factor for µSv/h and Bq/m2, time interval, etc).. - OLED display: 128 64 high contrast, two OLED display sizes supported.. - Realtime clock.. - Watertight, shock resistant Pelican 1010 micro case in Yellow or Black.. - Carry strap and hook attachment (for car, cycling, walking, airplane, etc).. - Fits into “Topeak” Bicycle top bar case for us on road bikes (not included).. - Dual CPU: Atmel, Arduino.. Open-source software.. *This is a kit and we re always modding things so the above may change any any moment without advance warning.. Want one? Fill out the.. !.. Pieter.. on March 22, 2013 05:17.. 2 Responses.. 2 Responses to The bGeigie Nano Kit.. says:.. Thank you for doing this.. Pre-ordered a kit.. Can solder and repair, willing to coach or help another customer of yours set up his Geigie.. Need a nano bGeigie for Japan.. I found your link on a reliable site.. Does it measure all radiation outputs in food, also?.. Bike V2.. 0 and bGeigieNano.. Air Prototype Show Tell..

    Original link path: /2013/03/the-bgeigie-nano-kit/
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  • Title: SAFECAST bGeigie Nano Building Workshop and Good Design Award reception party at Loftwork, Saturday Oct. 19, 2013 » Safecast
    Original link path: /2013/10/safecast-bgeigie-nano-building-workshop-and-good-design-award-reception-party-at-loftwork-saturday-oct-19-2013/
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  • Title: workshopinaizu1 » Safecast
    Descriptive info: workshopinaizu1.. Next Image.. October 8, 2013 05:35.. on October 8, 2013 05:35.. Add comments.. Leave a Reply.. Cancel reply.. Name.. (required).. E-mail.. URI.. * Copy This Password *.. * Type Or Paste Password Here *.. 8,011 Spam Comments Blocked so far by.. Spam Free Wordpress.. Your Comment.. You may use these.. HTML.. tags and attributes:.. a href= title= abbr title= acronym title= b blockquote cite= cite code del datetime= em i q cite= strike strong..

    Original link path: /2013/10/safecast-bgeigie-nano-building-workshop-and-good-design-award-reception-party-at-loftwork-saturday-oct-19-2013/workshopinaizu1/
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