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Failure position detection device for nuclear fuel rod

Abstract

Purpose: To easily detect failure position of a nuclear fuel rod by relatively moving an air-tightly shielded detection portion to a fuel rod. Constitution: For detecting the failure position of a leaked fuel assembly, the fuel assembly is dismantled and a portion of withdrawn fuel rod is air-tightly sealed with an inspection portion. The inside of the inspection portion is maintained at a pressure-reduced state. Then, in a case if failed openings are formed at a portion sealed by the inspection portion in the fuel rod, FP gases in the fuel rod are released based on the reduced pressure and the FP gases are detected in the detection portion. Accordingly, by relatively moving the detection portion to the fuel rod, the failure position can be detected. (Yoshino, Y.).
Publication Date:
Mar 24, 1987
Product Type:
Patent
Report Number:
JP 62-64993; A
Reference Number:
JPN-88-061250; EDB-88-037369
Resource Relation:
Patent File Date: Filed date 18 Sep 1985; Other Information: JP patent application 60-204317
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; BWR TYPE REACTORS; FAILED ELEMENT DETECTION; POSITION SENSITIVE DETECTORS; BETA DETECTION; FISSION PRODUCTS; FUEL RODS; PRESSURE DROP; RELIABILITY; SEALS; CHARGED PARTICLE DETECTION; DETECTION; FUEL ELEMENTS; ISOTOPES; MATERIALS; MEASURING INSTRUMENTS; RADIATION DETECTION; RADIATION DETECTORS; RADIOACTIVE MATERIALS; REACTOR COMPONENTS; REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS; 210100* - Power Reactors, Nonbreeding, Light-Water Moderated, Boiling Water Cooled
OSTI ID:
5536504
Research Organizations:
Toshiba Corp., Kawasaki, Kanagawa (Japan); Nippon Atomic Industry Group Co. Ltd., Tokyo
Country of Origin:
Japan
Language:
Japanese
Availability:
JAPIO. Also available from INPADOC.
Submitting Site:
JPN
Size:
Pages: 4
Announcement Date:
May 13, 2001

Citation Formats

Ishida, Takeshi, Higuchi, Shin-ichi, Ito, Masaru, and Matsuda, Yasuhiko. Failure position detection device for nuclear fuel rod. Japan: N. p., 1987. Web.
Ishida, Takeshi, Higuchi, Shin-ichi, Ito, Masaru, & Matsuda, Yasuhiko. Failure position detection device for nuclear fuel rod. Japan.
Ishida, Takeshi, Higuchi, Shin-ichi, Ito, Masaru, and Matsuda, Yasuhiko. 1987. "Failure position detection device for nuclear fuel rod." Japan.
@misc{etde_5536504,
title = {Failure position detection device for nuclear fuel rod}
author = {Ishida, Takeshi, Higuchi, Shin-ichi, Ito, Masaru, and Matsuda, Yasuhiko}
abstractNote = {Purpose: To easily detect failure position of a nuclear fuel rod by relatively moving an air-tightly shielded detection portion to a fuel rod. Constitution: For detecting the failure position of a leaked fuel assembly, the fuel assembly is dismantled and a portion of withdrawn fuel rod is air-tightly sealed with an inspection portion. The inside of the inspection portion is maintained at a pressure-reduced state. Then, in a case if failed openings are formed at a portion sealed by the inspection portion in the fuel rod, FP gases in the fuel rod are released based on the reduced pressure and the FP gases are detected in the detection portion. Accordingly, by relatively moving the detection portion to the fuel rod, the failure position can be detected. (Yoshino, Y.).}
place = {Japan}
year = {1987}
month = {Mar}
}