Demonstration tests of the high temperature wide range neutron monitoring system in the AVR
Creators
- 1. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Reactor Instrumentation Lab.
Description
A High Temperature Wide Range Neutron Monitoring System (HWNMS) was developed for HTGRs by JAERI. The special features of the HWNMS are as follows. The neutron sensor can be installed inside the pressure vessel of the HTGR. The maximum operating temperature of the neutron sensor is 800deg C. The HWNMS is designed to have low electric noises. The HWNMS provides the neutron flux monitoring and a reactor period indication from source range to power range. The HWNMS is designed to satisfy the requirements for the Post-Accident Monitor (PAM) of the HTGR. The performance test of the HWNMS was carried out in the research reactor JRR-4. The demonstration test was also performed in the actual high temperature gas-cooled reactor AVR. (orig./HP)
Availability note (English)
MF available from INIS under the Report Number.
Files
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Additional details
Publishing Information
- Imprint Pagination
- 42 p.
- Report number
- Juel--2468
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 23002081
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- AVR REACTOR; HTGR TYPE REACTORS; IN CORE INSTRUMENTS; NEUTRON FLUX; PERFORMANCE TESTING; POWER DISTRIBUTION; REACTOR MONITORING SYSTEMS; REACTOR PERIOD
- Descriptors DEC
- DISTRIBUTION; ENRICHED URANIUM REACTORS; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; HELIUM COOLED REACTORS; HOMOGENEOUS REACTORS; PEBBLE BED REACTORS; POWER REACTORS; RADIATION FLUX; REACTORS; SOLID HOMOGENEOUS REACTORS; SPATIAL DISTRIBUTION; TESTING; THERMAL REACTORS; THORIUM REACTORS