O P E N S C I E N C E H A R D W A R E F T W

S A F E C A S T

M A R C H 1 1 , 2 0 1 1

Experience DIY

DevelopmentAction

Funding

S A F E C A S T I S …

• International, ad-hoc volunteer network

• Non-heirarchical (but with “centers of gravity”)

• Includes radiation experts, hardware designers, software designers, academics, tinkerers, hackers, entrepreneurs, housewives, drivers, students, etc.

• “Brain Trust” : Leaders in their fields

• We are Pro-Data !

S O M E S A I L O R W / G E I G E R C O U N T E R

1 9 4 0 ’ S

M O B I L E M O N I T O R I N G !

1 9 5 0

J A E A M O B I L E M O N I T O R

2 0 0 9

表 2.14-1 モニタリング車 1 の機器構成及び仕様（続） 機 器 項 目 仕 様

ヨウ素モニタ （東芝製）

捕集方式 使用フィルタ 湿度対策 流量率 測定器 検出効率 警報 遮蔽 計数率表示

チャコールカートリッジによる。 CHC-50 TEDA10%、50 mmφ 配管ヒーターによる除湿 60～100 L/分 温度補償型 2”×2” NaI(Tl)シンチレーション検出器 RD361NG2（Aloka） ４%以上（ヨウ素模倣線源による） レベル高時に LED 点灯及びブザー 検出器部に鉛厚さ 30mm 以上のγ線遮蔽 デジタルレートメータ及び記録計

二系統測定装置 （Aloka 製）

検出器 スケーラ

α：ZnS(Ag)ｼﾝﾁﾚｰｼｮﾝ検出器 ZD-451FU（Aloka） β：GM 検出器 GP-14V（Aloka）

画像伝送システム カメラ 制御装置 伝送手段 制御ソフト

基本的に PHS（PHS がつながらない場合は携帯電話） MediaPoint（環境監視室 PC にインストール済）

図 2.14-1 モニタリング車 1 の機器搭載位置

JAEA-Review 2009-064

- 65 -

R N 2 3 R A R A T O N G AC T B T O S T A T I O N

R N 5 0 P A N A M A C I T YC T B T O S T A T I O N

R N 2 0 B E I J I N GC T B T O S T A T I O N

R N 3 8 T A K A S A K IC T B T O S T A T I O N

M A R C H 2 0 1 1C T B T O D A T A

M O R E Q U E S T I O N S T H A N A N S W E R S

W E D E C I D E D T O D O S O M E T H I N G

THAT WORKED!

THAT SUCKED!

T E P C O

U S O P E R A T I O N T O M O D A C H I

M E X T 3 / 1 7 2 0 1 1

D O E / N N S A A E R I A L S Y S T E M

D O E / N N S A D A T A

S P E E D I

�"'��%�'����#&��#� �+'�%"� ��+$#&(%�

�'*��"���%�������"���$%� ����

�&'�!�'����,�������

�����'�)���#&��#� �+'�%"� ��+$#&(%�

��'����!�#"���%������� ��!�#"��$%� ���

�%���������!�- ���!

�(� ����� �"(� �������������( '

�#"'#(%�#�������'�)���#&��!�)�

30�km

Iidate�village

Sohma�shiDate�shi

Fukushima Dai�ichi�NNP

Ohkuma�city

Futaba�city

Tamura�shi

Katsurao�villageNamie�city

Nihommatsu�shi

Kawauchi�villageTomioka�city

Naraha�city

Hirono�city

Iwaki�shi

20�km

Minamisohma�shiKawamata�city

Fukushima�shi

Ootama�village

Motomiya�shi

Miharu�city

Ono�city

Hirata�village

Tamakawa�village

Ishikawa�city

Furudono�village

Samegawa�village

Asakawa�city

�sheltering�level

S P E E D I

L A R G E L Y U N H E L P F U L

• 7th-generation mobile detector

• Rugged

• Arduino-based

• GPS and data-logging

• LND 7317 2” pancake sensor

• OLED display

• Bluetooth and WiFi capable

• Open-source, open hardware, open data

• Designed as a kit, anyone can build it and upload data

A N T I D I S C I P L I N A R Y

Image by Rich Gold

device hardware

API/ mapping

device softwareoutreach, education

administrative

Lots of multitasking, multi-competence

“connectors”

T A N G I B L E R E S U L T S 5 Y E A R S L A T E R

1 0 0 0 + D E V I C E S

> 4 2 M D A T A P O I N T S

D A T A G U I D E L I N E S

• Every data point must have a time stamp and GPS coordinates.

• Device and user must have unique IDs to provide ability to identify and track errors (user can remain anonymous but still needs ID)

• The device used must have publicly available specs, including sensor type, size, and manufacturer.

• Data submitted to Safecast must be formatted correctly with all applicable metadata.

• Measurements should be taken at approx 1m height, with safeguards against interference, etc.

• Measurements should be given in CPM, and note what kind of shielding (if any) was used.

• A single measurement cannot represent the levels of an entire city

2 0 1 3

2 0 1 6

I N T A N G I B L E I M P A C T

– I E M 6 R E P O R T

“…crowdsourcing, for example in the collection and dissemination of radiation data, can also help to instill confidence

in information from official sources. But to continue to be effective, these public

groups need to maintain their independence; to be seen to work too closely with the authorities will diminish

their effectiveness, and consequently also their credibility, making them redundant….

– I E M 6 R E P O R T ( C O N T )

“…For government authorities and agencies, crowdsourcing certainly is the

‘genie that will not go back in the bottle’. It is necessary to accept that this technology is here to stay and that empowerment of

the public is not necessarily a negative development.”

O F F I C I A L D A T A I S O P A Q U E & C O N F U S I N G

M E X T - D O E A I R B O R N E M A P - 0 5 / 2 0 1 1

For Iwaki, choose from a

list of 475 locations!

O F F I C I A L G O V T M A P 2 0 1 4 7 M O N I T O R I N G S T A T I O N S

J A E A V E H I C L E B O R N E S U R V E Y 1 2 0 D A T A P O I N T S

S A F E C A S T M A P - S A M E A R E A ~ 8 0 0 D A T A P O I N T S

C A N ’ T P U T T H E G E N I E B A C K I N T H E B O T T L E

P U B L I C W A N T S B E T T E R D A T A

P U B L I C W O N ’ T W A I T F O R G O V E R N M E N T

P U B L I C H A S A G E N C Y

S I M I L A R P R O J E C T S

K U R A M A

• Kyoto University

• Govt Funded

• $10,000 per device

• Closed data

• No public involvement

B I S H A M O N

• Niigata University + UCLA

• High Quality Data

• Expensive, proprietary hardware

• Dormant since 2014

• Upcoming features (safecast circa 2011)

S A F E C A S T I N S P I R E D

• DARPA Project

• ASIJ

• Kithub

• Aoyama Gakuin University

P O R T E R R A N C H D E P L O Y M E N T

M O R E S O O N !

www.safecast.org

api.safecast.org

www.github.com/safecast

@safecast

@seanbonner