2018 ISOE International ALARA Symposium
2018 ISOE International ALARA Symposium was held on 24-26, October 2018 in Kyoto city, Kyoto Prefecture, Japan, with attendance of 45 people from Japan, Republic of Korea, France, Sweden, Russia, UAE, and USA. The first 2days were dedicated for paper presentation and discussion, and a technical tour to FUGEN Decommissioning Engineering Center was held on the last day.
The symposium consisted of 21 papers and those papers were presented in 5 sessions – Instrumentation and Monitoring, Database Relevant, Regulation Matters, Decommissioning Matters, and Radiation Protection in Nuclear Power Plants. The participants shared/exchanged information throughout fruitful discussion during the symposium.
At the end of the symposium, the following two distinguished papers were selected. As the first attempt for the Symposium, distinguished papers were selected by participants’ voting.
- Newly adopted Remote Monitoring System successfully reduces radiation exposure at Fukushima Daiichi Nuclear Power Station. Chisato OMATA, Tokyo Electric Power Company Holdings, Inc.
- Promotion of ALARA using compton camera. Manato SHOJI, Tohoku Electric Power Company, Inc.

A technical tour to the FUGEN Decommissioning Engineering Center of JAEA was held on 26 October 2018.

First, the attendees were provided lectures on the current situation of the NPP, JAEAfs technologies for decommissioning, and further decommissioning activities. Then they moved to the site on foot then go into the reactor building and turbine building of the FUGEN. When they visited the turbine building, they saw a lot of equipment which has been already detached and sorted in the cage. Then they moved to reactor building and saw a current situation of reactor core whose fuel has been removed. During the tour, staffs from a section of the radiation protection and decommissioning were on the side of attendees and answer questions from them. A lot of questions were made during and after the tour and the staffs of JAEA kindly answered them. The attendees were very much interested in and satisfied with the tour.
Contents
Session 1 Instrumentation and Monitoring
Title Speaker Contents
RP-Monitoring in decommissioning J. Gustavsson,
OKG, Oskarshamn,
Sweden
Summary Presentation
Portable Gamma Spectroscopy System for In-Situ Measurements and Examples of its Use for Continuous On-Line Assay of Primary Coolant F. Bronson,
Mirion-Technologies-
Canberra,
USA
Summary Presentation
Promotion of ALARA using compton camera M. Shoji,
Tohoku EPC,
Japan
Summary Presentation
Newly adopted Remote Monitoring System successfully reduces radiation exposure at Fukushima Daiichi Nuclear Power Station. C. Omata,
Tokyo EPC-H,
Japan
Summary Presentation

Session 2 Database Relevant
Title Speaker Contents
Use of ISOE Database and website L.A. Beltrami,
CEPN,
France
Summary Presentation
Analysis on Radiation Exposure Dose of Radiation Workers in NPPs of Korea based on ISOE and KISOE databases Byeongsoo Kim,
KINS,
Republic of Korea
Summary Presentation
User feedback for Evolution of ISOE Database H. Tezuka, K. Honjo,
ISOE/ATC,
Japan
Summary Presentation

Session 3 Regulation matters
Title Speaker Contents
Readiness for Lens Dose Limit Change M. Johansson,
Vattenfall,
Ringhals NPP,
Sweden
Summary Presentation
Voluntary Action for Managing the Equivalent Dose of the Lens of the Eye According to ICRP Recommendation Y. Natsume,
Tokyo EPC-H,
Japan
Summary Presentation
The Radiation Management Reported by Licensees and the Relevant Regulations Amendment in Japan A. Suzuki,
NRA,
Japan
Summary Presentation

Session 4 Decommissioning matters
Title Speaker Contents
Investigation for contaminated materials at Genkai unit 1 Y. Inokuchi,
Kyushu EPC,
Japan
Summary Presentation
Current Status on Decommissioning Plan of Nuclear Facilities in Korea S. Lee,
KINS,
Republic of Korea
Summary Presentation
Radiation Control in the Decommissioning Work at Hamaoka Nuclear Power Station J. Kohara,
Chubu EPC,
Japan
Summary Presentation
Mihama Unit 1 & 2 Radiological Management of System Decontamination for Decommissioning R. Suehiro,
K. Yamaguchi,
Kansai EPC,
Japan
Summary Presentation

Session 5 Radiation Protection in Nuclear Power Plants
Title Speaker Contents
Review on Radiation Area Zoning of NPPs in Korea Y. Kim,
KINS,
Republic of Korea
Summary Presentation
ALARA Activities at Shika Nuclear Power Station, Hokuriku EPC M. Araki,
Hokuriku EPC,
Japan
Summary Presentation
Introduction of the dose and radioactive waste reduction program in Kashiwazaki-Kariwa NPS Y. Murakami,
Tokyo EPC-H,
Japan
Summary Presentation
ALARA Activities in Tomari Power Station S. Takahata,
Hokkaido EPC,
Japan
Summary Presentation
Characteristic Radiological Protection Activities at Ikata NPP during outages J. Sanada,
Shikoku EPC,
Japan
Summary Presentation
ALARA Aspects of the DC Cook Baffle Bolt/Upflow Modifications D.W. Millar,
Cook NPP,
USA
Summary Presentation
Recontamination Reduction Techniques in BWR R. Shimizu,
Hitachi-GE,
Japan
Summary Presentation