Research Conference onRadiation Measurements for
Decommissioning of theFukushima Daiichi NPPAugust 4-6, 2016
Naraha Cycling Terminal Viewing Hotel “TENJIN”(Naraha-machi, Fukushima Prefecture)

Organized by
Collaborative Laboratories for Advanced
Decommissioning Science (CLADS)
Japan Atomic Energy Agency (JAEA)

1

Welcome from Conference Chair
It is my great pleasure to welcome you to the Research Conference on Radiation
Measurements for Decommissioning of the Fukushima Daiichi NPP, held in
Naraha-machi, Fukushima, Japan. Goal of this three-days conference is to discussvarious issues about the radiation detection technologies — including 3D radiation
imaging in the high-dose-rate environments and measurements of neutrons andphotons emitted from fuel debris — which are applicable to decommissioning works atnuclear facilities including Fukushima reactors.
More than 50 scientists and engineers from all over the world will participate tothis conference. Fourteen invited/oral lectures and ten posters with short talks will bepresented at the conference. In the schedule, I included two special tours. One is theFukushima Daiichi NPP of the Tokyo Electric Power Co., Inc (TEPCO) and the other isto the Naraha Remote Technology Development Center (NRTDC) of the Japan Atomic
Energy Agency (JAEA) which was newly established last year.
I would like to thank all of the conference attendees, municipality staff ofNaraha-town, TEPCO, the 186 committee of JSPS, NRTDC/JAEA staff and each oforganizing members. I wish you a pleasant journey to/from Fukushima and an
enjoyable time before and after the conference.
鳥居建男
Tatsuo Torii, PhD
Conference Chair
Division HeadRemote System and Sensing Technology Division
Collaborative Laboratories for Advanced DecommissioningScience (CLADS)
Sector of Fukushima Research and DevelopmentJapan Atomic Energy Agency

2Program<1st DAY: Thursday 4 August>
12:20 JR Iwaki Station
12:30-14:00 Transfer（JR Iwaki Station→TEPCO Fukushima Daiichi (1F) via J-Village）
14:00-16:00 1F tour
16:00-17:00 Transfer（1F→TENJIN via J-Village）
17:00-17:30 Registration
17:30-19:00 Dinner
19:25 Opening remarks

T. Ogawa (JAEA)

19:30-21:00 Session 1 : Decommissioning and radiation measurements-Topic presentation
Chair : H. Takahashi (Univ. Tokyo)
Introduction : H. Takahashi (Univ. Tokyo)(1) Remote radiation monitoring after the Fukushima Daiichi Nuclear Power Plant accident
and challenges of new radiation measurement research to the decommissioning in JAEA
19:40-20:00

T. Torii (JAEA)

20:00-20:20

W. Sato (TEPCO)(2) Present status and challenges on 1F(3) Development of technologies for investigation of the inside of the PCV
20:20-20:40

Y. Masahira (MHI-IRID)(4) UK nuclear decommissioning and the approach to measurement technology
20:40-21:00

K. Lennox (NNL)<2nd DAY: Friday 5 August>
8:20-11:30

Session 2 : How to visualize radiation distributions in 1F buildings underhigh-dose rate.
Chair : T. Iguchi (Nagoya Univ.)
Introduction : T. Iguchi (Nagoya Univ.)(1) Combined neutron / γ-ray measurements and challenges in high dose ratedecommissioning applications

8:30-9:15

M.J. Joyce (Lancaster Univ.)(2) Advanced Concepts in Gamma-ray Imaging and Data Fusion in 3-D
9:15-10:00

A. Haefner (LBNL)(3) Polaris/Orion 3-D CdZnTe Gamma-Ray Imaging Spectrometers and Their Applications
10:00-10:45
3

Z. He (Univ. Michigan)

(4) Gamma-ray spectrometry by CdTe detector
10:45-11:30

T. Aoki (Shizuoka Univ.)12:00-13:00 Lunch
13:30-14:00 Travelling (TENJIN → Naraha Remote Technology Development Center(NRTDC) of JAEA)
14:30-15:30 NRTDC tour
16:00-16:30 Travelling (NRTDC → TENJIN)
16:30-17:30 Short oral presentation for poster session (5 minutes each)
Chair : H. Takahashi (Univ. Tokyo)(1) Research and Development of AR in Decommissioning
Y. Koda (JAEA)(2) Development of portable gamma-ray spectroscopy system for analysis of radioactive
contamination in the environment
W. Lee (KAERI)(3) Development of drone system for environmental radiation measurement
M. Sasaki (JAEA)(4) R&Ds on Remote Technology and Radiation Measurements in JAEA towards theDecommissioning of FDNPP
Y. Sato (JAEA)(5) Development of non-destructive measurement technology for depth profile of subsurface
contamination in radioactively contaminated site
B. Seo (KAERI)(6) Evaluation of Eu-doped SrI2 single crystal for scintillation γ-ray detector

M. Sugiyama (Chiyoda Technol Corp.)(7) 4𝜋𝜋 Field of View gamma imaging using stacked scintillator array
T. Takahashi (Nagoya Univ.)(8) Study on silicon semiconductor detector for visualizing the pollution distribution in theFukushima Daiichi Nuclear Power Plant
Y. Yoshihara (Univ. Tokyo)(9) Gamma-ray spectrometry of concrete and soil of decommissioning wastes
C-J. Kim (KAERI)(10) Development of novel scintillators under the high-rate dose
S. Kurosawa (Tohoku Univ.)

4

18:00-20:00 Conference Party<3rd DAY: Saturday 6 August>
8:30-10:55 Session 3 : How to detect the distributions of fuel debris.
Chair : I. Kanno (Kyoto Univ.)
Introduction : I. Kanno (Kyoto Univ.)(1) Development of diamond radiation detector and diamond FET
8:40-9:25

J.H. Kaneko (Hokkaido Univ.)(2) Savannah River National Laboratory Capabilities for Radiation Measurements in
High-Dose Environments
9:25-10:10

M. Brisson (SRNL)

3(3) He MSGC Neutron Detector development at the ILL
10:10-10:55
11:00-11:30 Discussion
11:30-12:30 Lunch
12:45-15:00 Poster Session
15:00 Closing
15:00-16:00 Travelling (TENJIN → JR Iwaki Station)

5

B. Guerard (ILL)