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Present status of Japan materials testing reactor

Abstract

The Japan Materials Testing Reactor (JMTR) in Japan Atomic Energy Agency (JAEA) is a light water cooled tank type reactor with first criticality in March 1968. Owing to the connection between the JMTR and hot laboratory by a canal, easy re-irradiation tests can be conducted with safe and quick transportation of irradiated samples. The JMTR has been applied to fuel/material irradiation examinations for LWRs, HTGR, fusion reactor and RI production. However, the JMTR operation was once stopped in August 2006, and check and review on the reoperation had been conducted by internal as well as external committees. As a result of the discussion, the JMTR reoperation was determined, and refurbishment works started from the beginning of JFY 2007. The refurbishment works have finished in March 2011 taking four years from JFY 2007. Unfortunately, at the end of the JFY 2010 on March 11, the Great-Eastern-Japan-Earthquake occurred, and functional tests before the JMTR restart, such as cooling system, reactor control system and so on, were delayed by the earthquake. Moreover, a detail inspection found some damages such as slight deformation of the truss structure at the roof of the JMTR reactor building. Consequently, the restart of the JMTR will be delayed  More>>
Authors:
Hori, Naohiko; Kaminaga, Masanori; Kusunoki, Tsuyoshi; Ishihara, Masahiro; Niimi, Motoji; Komori, Yoshihiro; Suzuki, Masahide; Kawamura, Hiroshi [1] 
  1. Japan Atomic Energy Agency, Oarai Research and Development Center, Oarai, Ibaraki (Japan)
Publication Date:
Mar 15, 2012
Product Type:
Conference
Report Number:
JAEA-Conf-2011-003
Resource Relation:
Conference: 4. international symposium on material testing reactors, Oarai, Ibaraki (Japan), 5-9 Dec 2011; Other Information: 4 refs., 5 figs., 3 tabs.; Related Information: In: Proceedings of the 4th international symposium on material testing reactors| by Ishihara, Masahiro; Suzuki, Masahide (eds.) [Japan Atomic Energy Agency, Oarai Research and Development Center, Oarai, Ibaraki (Japan)]| 310 p.
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; AGING; DEFORMATION; EARTHQUAKES; HOT LABS; INSPECTION; INTERNATIONAL COOPERATION; IRRADIATION; JMTR REACTOR; MODIFICATIONS; SAFETY ANALYSIS; SEISMIC EFFECTS
OSTI ID:
22078600
Research Organizations:
Japan Atomic Energy Agency, Tokai, Ibaraki (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
TRN: JP1250108037810
Availability:
Available from INIS in electronic form. Also available from JAEA; URL: http://jolissrch-inter.tokai-sc.jaea.go.jp/pdfdata/JAEA-Conf-2011-003.pdf
Submitting Site:
INIS
Size:
page(s) 87-90
Announcement Date:
Apr 01, 2013

Citation Formats

Hori, Naohiko, Kaminaga, Masanori, Kusunoki, Tsuyoshi, Ishihara, Masahiro, Niimi, Motoji, Komori, Yoshihiro, Suzuki, Masahide, and Kawamura, Hiroshi. Present status of Japan materials testing reactor. Japan: N. p., 2012. Web.
Hori, Naohiko, Kaminaga, Masanori, Kusunoki, Tsuyoshi, Ishihara, Masahiro, Niimi, Motoji, Komori, Yoshihiro, Suzuki, Masahide, & Kawamura, Hiroshi. Present status of Japan materials testing reactor. Japan.
Hori, Naohiko, Kaminaga, Masanori, Kusunoki, Tsuyoshi, Ishihara, Masahiro, Niimi, Motoji, Komori, Yoshihiro, Suzuki, Masahide, and Kawamura, Hiroshi. 2012. "Present status of Japan materials testing reactor." Japan.
@misc{etde_22078600,
title = {Present status of Japan materials testing reactor}
author = {Hori, Naohiko, Kaminaga, Masanori, Kusunoki, Tsuyoshi, Ishihara, Masahiro, Niimi, Motoji, Komori, Yoshihiro, Suzuki, Masahide, and Kawamura, Hiroshi}
abstractNote = {The Japan Materials Testing Reactor (JMTR) in Japan Atomic Energy Agency (JAEA) is a light water cooled tank type reactor with first criticality in March 1968. Owing to the connection between the JMTR and hot laboratory by a canal, easy re-irradiation tests can be conducted with safe and quick transportation of irradiated samples. The JMTR has been applied to fuel/material irradiation examinations for LWRs, HTGR, fusion reactor and RI production. However, the JMTR operation was once stopped in August 2006, and check and review on the reoperation had been conducted by internal as well as external committees. As a result of the discussion, the JMTR reoperation was determined, and refurbishment works started from the beginning of JFY 2007. The refurbishment works have finished in March 2011 taking four years from JFY 2007. Unfortunately, at the end of the JFY 2010 on March 11, the Great-Eastern-Japan-Earthquake occurred, and functional tests before the JMTR restart, such as cooling system, reactor control system and so on, were delayed by the earthquake. Moreover, a detail inspection found some damages such as slight deformation of the truss structure at the roof of the JMTR reactor building. Consequently, the restart of the JMTR will be delayed from June to next October, 2012. Now, the safety evaluation after the earthquake disaster is being carried out aiming at the restart of the JMTR. The renewed JMTR will be started from JFY 2012 and operated for a period of about 20 years until around JFY 2030. The usability improvement of the JMTR, e.g. higher reactor availability, shortening turnaround time to get irradiation results, attractive irradiation cost, business confidence, is also discussed with users as the preparations for re-operation. (author)}
place = {Japan}
year = {2012}
month = {Mar}
}