graph JAEANo.

1September
2013

Japan Atomic Energy Agency

graph JAEA
02

Survey the rivers

04

Survey the inner soil

05

Survey from the air

06

Forecast

07

Decontaminate

08

Study

10

Build

11

Prepare01 Explanation of the cover pageKansai Photon Science Institute has several laser devices capable of emitting
extremely intense light. The photo on the cover page shows one of the devices
named J-KAREN (JAEA Kansai Advanced Relativistic Engineering). This device
shines in green while it’s in operation.
The photo received an award of excellence in the 5th Panel Exhibition of TheBeauty of Science and Technology.
2

The Headquarters of Fukushima Partnership Operations has
been conducting a “Long-term assessment of Transport ofRadioactive Contaminant in the Environment of Fukushima(F-TRACE)” intended to investigate how the radioactivematerials migrate. As a part of this study, they have been
carrying out investigation at various sites.
This picture shows sampling of soil particles which adsorbed
cesium, measurement of the sedimentation and of the velocity of
the river current in the Odaka River in Minamisoma City.

3

How much radioactive cesium migrates into the soil? How will it change with time?
The Headquarters of Fukushima Partnership Operations has been conducting
investigations using soil samplers for analyses of cesium depth profile. A soil sampler isa device capable of digging out the soil from the surface in a cylindrical form. This
picture shows a soil sampler into the soil in Kawamata Town in Fukushima Prefecture.
4

Deposition of I-131(Bq/m2)(As of April 3, 2011)

The deposition distribution of Iodine-131 after the Fukushima Daiichi Nuclear Power

Station accident was not known because of the short half-life of 8 days. TheHeadquarters of Fukushima Partnership Operations published the contamination map
as a result of a joint research with the US Department of Energy (DOE). This map isthe result of analyses based on the data measured by DOE by airborne surveys at an
early stage after the accident, and it shows there is a lot of iodine deposition on theground located in the north-west direction from the Power Station and in the south
near the Power Station.

5

2 years
after theaccident

20 years
after theaccident

50 years
after theaccident

Accumulated amount of 137Cs [Bq/m2]

This figure shows the prediction of cesium 137 distribution
as a function of time.
6The Government and municipalities are now conducting decontamination. TheHeadquarters of Fukushima Partnership Operations has, prior to these activities,
already implemented the Decontamination Pilot Project to examine what type ofdecontamination methods would be effective. This project was implemented under thecommission from the Cabinet Office in twelve municipalities in Fukushima Prefecturefrom September 2011 to June 2012. The results has been reflected to thedecontamination guidelines issued by Ministry of the Environment.

7Light points have gathered to form a ring.
What on earth is this?

8Source: ICRR-Kamioka/T2K Group, the University of Tokyo

Source: ICRR-Kamioka/T2K Group, the University of TokyoA magnificent experiment is being conducted, in which an underground detector called“Super-Kamiokande” of the Institute for Cosmic Ray Research, the University ofTokyo (shown in the above figure), located in Kamioka Town of Hida City in Gifu
Prefecture, detects the neutrino released from J-PARC in Tokai Village, 295ｋｍ awayfrom the detector. The figure on the previous page shows the lights received by thephoto multiplier tubes arranged on the inner walls of the 3 dimensional event display ofsuper-Kamiokande, made clearer by assigning different colors to different time periods.
It shows that the Cherenkov radiation released from the electron/positron shower
caused by the electrons generated from the reaction between electron neutrino andwater is caught in the form of a ring. Please refer to the following website for details:
http://legacy.kek.jp/intra-e/press/2013/071921/
9The Fusion Research and Development Directorate is now pursuing theJT-60SA Project.
JT-60SA is a superconducting tokamak, being built under the combined
programme of "The Japan-EU Satellite Tokamak Programme" and"The Japan National Centralized Tokamak Programme."
This photo shows how the pedestal of JT-60SA (12m in diameter, about 280 10tons in weight) manufactured in Europe is being assembled.

Oarai Research & Development Center conducted a comprehensive emergency drillin August this year.
It was conducted under the assumption that an earthquake with an intensity oflower 6 on the Japanese seven‐stage seismic scale occurred in Oarai Town, thecommercial power source was lost, and a fire was also caused in a facility by theearthquake.
11

Japan Atomic Energy Agency List of Activity Sites
Horonobe Underground Research Center
Post code 098-3224, Hokushin 432-2, Horonobe Town, Teshio County, Hokkaido
Telephone: (01632)5-2022

Takasaki Advanced Radiation Research Institute
Post code 370-1292, Watanuki Town 1233, Takasaki City, Gunma Prefecture
Telephone: (027)346-1211 (Information desk)

Aomori Research and Development Center

Tsuruga Head Office

Post code 039-3212, Oaza-Obuchiaza-Omotedate 2-166,
Rokkasho Village, Kamikita County, Aomori Prefecture
Telephone: (0175)71-6500(Switchboard number)

Post code 914-8585, Kizaki 65-20, Tsuruga City, Fukui Prefecture
Telephone: (0770)23-3021 (Switchboard number)

Ningyo-toge Environmental Engineering Center
Post code 708-0698, Kamisaibara 1550, Kagamino Town,
Ashida County, Okayama Prefecture
Telephone: (0868)44-2211

Fukushima Environmental Safety Center
Post code 960-8031 NBF Unix Building 7F, Sakae Town 6-6,
Fukushima City, Fukushima Prefecture
Telephone: (024)524-1060

Head Office
Post code 319-1184, Muramatsu 4-49, Tokai Village, Naka County,Ibaraki Prefecture
Telephone: (029)282-1122

Tokai Research and Development Center
Post code 319-1195, Shirakata-Shirane 2-4, Tokai Village,
Naka County, Ibaraki Prefecture
Telephone: (029)282-5100 (Information desk)

J-PARC Center
Post code 319-1195, Shirakata-Shirane 2-4, Tokai Village,
Naka County, Ibaraki Prefecture
Telephone: (029)282-5100 (Information desk)

Oarai Research and Development Center
Post code 311-1393, Narita Town 4002, Oarai Town ,Higashi-Ibaraki County, Ibaraki Prefecture
Telephone: (029)267-4141(Switchboard number)

Kansai Photon Science Institute
Kizu
Post code 619-0215, Umemidai 8-1-7, Kizugawa City, Kyoto Prefecture
Telephone: (0774)71-3000 (Information desk)
HarimaPost code 679-5148
Kouto 1-1-1, Sayo Town, Sayo County, Hyogo Prefecture
Telephone: (0791)58‐0822

Naka Fusion Institute
Post code 311-0193, Mukoyama 801-1, Naka City,
Ibaraki Prefecture
Telephone: (029)270-7213 (Information desk)

Tokyo Office

Post code 100-8577, Fukokuseimei Building 19F, Uchisaiwai Cho 2-2-2,
Chiyoda Ward, Tokyo Metropolitan Area
Telephone: (03)3592-2111(Switchboard number)

Tono Geoscience Center(Mizunami Underground Research Laboratory)
Post code 509-6123, Yamanouchi 1-64, Akiyo Town, Mizunami City, Gifu Prefecture
Telephone: (0572)66-2244

graph JAEA
September 2013 No.1
Japan Atomic Energy Agency
Public Relations Department
Post code 319-1184, Muramatsu 4-49, Tokai Village, Naka County,
Ibaraki Prefecture
Telephone: (029)282-0749