Published 2023 | Version v1
Journal article Metadata-only

Laser decontamination application for decommissioning of an radioisotopes facility

Creators

  • 1. Hazama Ando Corporation, Technical Research Institute, Structural/Materials Research Department, Tsukuba, Ibaraki (Japan)
  • 2. Hazama Ando Corporation, Business Development Division, Energy Business Technology Department, Tokyo (Japan)
  • 3. Hazama Ando Corporation, Technical Research Institute, Nuclear Power Department, Tsukuba, Ibaraki (Japan)
  • 4. Hazama Ando Corporation, Technical Research Institute, Frontier Research Department, Tsukuba, Ibaraki (Japan)

Description

We have been developing a decontamination system using laser technology for application to the decommissioning of nuclear power plants and radiation application facilities. Laser decontamination is a non-contact process that generates little secondary waste and is suitable for remote operation, thus reducing worker exposure. Toward the practical application of the laser decontamination system, we conducted an application test of the laser decontamination system to radioactive contaminated materials such as exhaust ducts generated during decommissioning of a radioisotopes facility. As a result, the decontamination effect of the laser decontamination system was confirmed for vinyl chloride coated steel plate, galvanized steel sheet, and wood veneer. In addition, the system was also confirmed to be effective in reducing the amount and volume of waste generated. (author)

Availability note (English)

Available from https://www.ad-hzm.co.jp/trr/2023/pdf_file/21.pdf

Abstract (Japanese)

原子力発電所や放射線利用施設等の廃止措置への適用に向けて,レーザー技術を活用した除染システムの開発を行っている.レーザー除染は,非接触加工であるため二次廃棄物が少なく,遠隔操作に適しているため作業員の被ばく低減が可能であるという特長を有する.レーザー除染システムの実用化に向けて,RI施設の廃止措置で発生した排気ダクト等の放射性汚染物に対してレーザー除染適用試験を実施した.結果として,塩ビライニング鋼板,亜鉛メッキ鋼板,木質化粧板に対してレーザー除染システムの除染効果が確認された.また,発生する廃棄物量の抑制効果・減容効果も確認された.(著者)

Additional details

Additional titles

Original title (Japanese)
RI 施設の廃止措置におけるレーザー除染の適用

Identifiers

URL
https://www.ad-hzm.co.jp/trr/2023/pdf_file/21.pdf;

Publishing Information

Journal Title
Ando Hazama Kenkyu Nenpo
Journal Volume
11
Series
雑誌名:安藤ハザマ研究年報
Journal Page Range
7 p.
ISSN
2188-2614

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
55089912
Subject category
S42: ENGINEERING; S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Descriptors DEI
CONTAMINATION; DECOMMISSIONING; DECONTAMINATION; LASER MIRRORS; PROPORTIONAL COUNTERS; PROTECTIVE CLOTHING; RADIATION PROTECTION; RADIOACTIVE AEROSOLS; RADIOACTIVE WASTES; RADIOISOTOPES; REMOTE HANDLING; SOLID STATE LASERS
Descriptors DEC
AEROSOLS; CLEANING; CLOTHING; COLLOIDS; DISPERSIONS; ISOTOPES; LASERS; MATERIALS; MEASURING INSTRUMENTS; MIRRORS; RADIATION DETECTORS; RADIOACTIVE MATERIALS; SOLS; WASTES

Optional Information

Notes
8 refs., 10 figs., 2 tabs., 4 photos