目　　次

■ 紹　　介
多チャンネル半導体検出器を使用した放射線測定器のシリーズ化 ( 3 )
皆越　敦 / 宮入　岳 / 酒巻　剛 / 石倉　剛
東海発電所熱交換器の解体撤去設備の据付 ( 9 )
武仲五月 / 澤田晃成 / 山崎誠一郎 / 木村秀明
欧州の原子力事情 - その歴史的経緯と現状 - (17)
村野博一

■ グループ情報
FAPIG第171～180号総目次 (36)
FAPIGの機構 (49)

表紙デザイン：清水郁男

CONTENTS

■ Introduction
Complete Series of Radiation Measuring Instrument
with Multi Channel Semiconductor Type Detector ( 3 )
A. Minagoshi / T. Miyairi / T. Sakamaki / T. Ishikura
Install of Dismantling Facilities for Steam Raising Unit in Tokai Power Station ( 9 )
S. Takenaka/ T. Sawada / S. Yamazaki / H. Kimura
Nuclear Energy in Europe focusing on France - its past and today - (17)
H. Murano

Cover Design : Ikuo Shimizu

SYNOPSES

Atsushi Minagoshi, Takeshi Miyairi, Tsuyoshi Sakamaki, Takeshi Ishikura
Complete Series of Radiation Measuring Instrument with Multi Channel Semiconductor Type Detector
FAPIG No. 181 pp.3 to 8 (2010)

Three types of radiation instruments which employ newly developed semiconductor detectors are introduced in this article. For the measurement range of patrol survey meters, the stable directional characteristics of dose equivalent rate ranging from 0.1μﾊSv/h to 130mSv/h have been also achieved. Portable area monitor has been designed for appropriate use at a site with the 1.3 times more sensitive detection of our existing fixed type area monitor. Also, the detection probe can measure by placing even 30m away from the surface to be monitored. Environmental dosimeter has been also improved 11 times better detection sensitivity of our existing product and two AA lithium batteries can operate the instrument for a year.

KEYWORDS：survey meter, patrol survey meter, existing fixed type area monitor, environmental dosimeter, silicon semiconductor sensor, multi channel semiconductor type detector

Satsuki Takenaka, Terumasa Sawada, Seiichiro Yamazaki, Hideaki Kimura
Install of Dismantling Facilities for Steam Raising Unit in Tokai Power Station
FAPIG No. 181 pp.9 to 16 (2010)

Tokai Power Station (TPS) of THE JAPAN ATOMIC POWER COMPANY (JAPC) started the commercial operation in 1966. JAPC is now dismantling by themselves after the commercial operation stop in 1998. Kawasaki Plant Systems, LTD (K Plant) took part in the construction of TPS and manufactured and maintained its primary system including the heat exchangers (SRU). And K-Plant had investigated the decommissioning methods with JAPC.
Dismantling of TPS has been started from 2001, and the dismantling of equipments around SRU from 2006. SRU is one of the largest sized components that make primary loop boundary. It is important that preventing contamination spread should be considered because inside of SRU is contaminated. JAPC and K-Plant selected the jack-down method and made a dismantling plan by using remote controlled facilities. And K-Plant finished installing and renovating constructions with no accident at May 2010.
This report shows the installing and renovating constructions.

KEYWORDS：jack-down, dry wire saw, remote controlled gripp, remote controlled transfer, floor surface accuracy