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Failed fuel rod detector

Patent:

Abstract

The purpose of the project is to enable failed fuel rod detection simply with no requirement for dismantling the fuel assembly. A gamma-ray detection section is arranged so as to attend on the optional fuel rods in the fuel assembly. The fuel assembly is adapted such that a gamma-ray shielding plate is detachably inserted into optional gaps of the fuel rods or, alternatively, the fuel assembly can detachably be inserted to the gamma-ray shielding plate. In this way, amount of gaseous fission products accumulated in all of the plenum portions in the fuel rods as the object of the measurement can be determined without dismantling the fuel assembly. Accordingly, by comparing the amounts of the gaseous fission products, the failed fuel rod can be detected.
Publication Date:
May 02, 1984
Product Type:
Patent
Report Number:
JP 5977388; A
Reference Number:
AIX-16-031183; EDB-85-102963
Resource Relation:
Patent File Date: Filed date 27 Oct 1982
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; FUEL ASSEMBLIES; FAILED ELEMENT MONITORS; COMPARATOR CIRCUITS; FISSION PRODUCTS; GAMMA RADIATION; PLATES; PULSE ANALYZERS; SHIELDING MATERIALS; ELECTROMAGNETIC RADIATION; ELECTRONIC CIRCUITS; ELECTRONIC EQUIPMENT; EQUIPMENT; IONIZING RADIATIONS; ISOTOPES; MATERIALS; MEASURING INSTRUMENTS; MONITORS; RADIATIONS; RADIOACTIVE MATERIALS; 220200* - Nuclear Reactor Technology- Components & Accessories
OSTI ID:
5534657
Country of Origin:
Japan
Language:
Japanese
Availability:
JAPATIC. Also available from INPADOC.
Submitting Site:
INIS
Size:
Pages: 5
Announcement Date:

Patent:

Citation Formats

Uchida, Katsuya, and Matsuda, Yasuhiko. Failed fuel rod detector. Japan: N. p., 1984. Web.
Uchida, Katsuya, & Matsuda, Yasuhiko. Failed fuel rod detector. Japan.
Uchida, Katsuya, and Matsuda, Yasuhiko. 1984. "Failed fuel rod detector." Japan.
@misc{etde_5534657,
title = {Failed fuel rod detector}
author = {Uchida, Katsuya, and Matsuda, Yasuhiko}
abstractNote = {The purpose of the project is to enable failed fuel rod detection simply with no requirement for dismantling the fuel assembly. A gamma-ray detection section is arranged so as to attend on the optional fuel rods in the fuel assembly. The fuel assembly is adapted such that a gamma-ray shielding plate is detachably inserted into optional gaps of the fuel rods or, alternatively, the fuel assembly can detachably be inserted to the gamma-ray shielding plate. In this way, amount of gaseous fission products accumulated in all of the plenum portions in the fuel rods as the object of the measurement can be determined without dismantling the fuel assembly. Accordingly, by comparing the amounts of the gaseous fission products, the failed fuel rod can be detected.}
place = {Japan}
year = {1984}
month = {May}
}