Published August 1979 | Version v1
Report Restricted

Effect of simulated thermal shield motion on nuclear instrument response: measurements and calculations (LWBR Development Program)

Creators

Description

An experiment has been performed to determine the effect of motion of a thermal shield on the neutron signal expected from ex-core detectors. Using a mockup of the LWBR reactor vessel, thermal shield, and core barrel in conjunction with a 252Cf neutron source, the change in detector signal with displacement of the various components was investigated. It was found that moving the thermal shield would produce a significant change in detector signal, although the effect was smaller than would be produced by moving the source and core barrel together. The results were substantiated by two-dimensional discrete-ordinate calculations

Availability note (English)

MF available from INIS under the Report Number; Available from NTIS., PC A02/MF A01.

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Additional details

Publishing Information

Imprint Pagination
22 p.
Report number
WAPD-TM--1370

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
11514404
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
DEFORMATION; LWBR TYPE REACTORS; MOTION; PERFORMANCE; RADIATION DETECTORS; REACTOR INSTRUMENTATION; THERMAL SHIELDS
Descriptors DEC
BREEDER REACTORS; MEASURING INSTRUMENTS; REACTORS; SHIELDS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS