Published March 2001 | Version v1
Report

Development of measurement of displacement of the top of sub-assembly using super sonic sensor

  • 1. Japan Nuclear Cycle Development Inst., Oarai, Ibaraki (Japan). Oarai Engineering Center

Description

It has been studied for safety plant test to demonstrate inherent safety of FBR core in JOYO. As a part of this study investigation of feedback reactivity was studied. And analysis code which can estimate the reactivity of core-bowing has been prepared. In post irradiation examination, remain bowing displacement of sub-assembly can only be measured, so development of measuring system of displacement of sub-assembly under operation is expected to improve estimation of core-bowing reactivity. It is supposed that an on-line measurement system of displacement of the top of sub-assembly using super sonic sensor under operation is an effective means. In this report, development of measurement of displacement of the top of sub-assembly using super sonic sensor was settled as follows. Characteristic test of heat-resistant super sonic sensor, Design of adjustment device of super sonic sensor, Examination of in-water test for estimation of temperature fluctuation. (author)

Availability note (English)

Available from JICST Library (JICST: Japan Science and Technology Corporation, Information Center for Science and Technology), P.O. Box 10 Hikarigaoka, Tokyo 179-9810 Japan, FAX: +81-3-3979-4781, JICST Service Homepage: www.jst.go.jp/EN/

Additional details

Publishing Information

Imprint Pagination
61 p.
Report number
JNC-TN--9400-2000-062

Optional Information

Notes
4 refs., 34 figs., 4 tabs., 11 photos.