DEVELOPMENT AND APPLICATIONS OF LPRM DETECTORS

Authors
PRASAD KR CHAGANTY SP BALAGI V UNNIKRISHNAN E RAO KV
Citation
Kr. Prasad et al., DEVELOPMENT AND APPLICATIONS OF LPRM DETECTORS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 418(2-3), 1998, pp. 420-428
Citations number
10
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
418
Issue
2-3
Year of publication
1998
Pages
420 - 428
Database
ISI
SICI code
0168-9002(1998)418:2-3<420:DAAOLD>2.0.ZU;2-P
Abstract
Miniature fission chambers with integral coaxial mineral insulated cab le assembly have been developed for Local Power Range Monitoring in th e BWR power station at Tarapur. The detectors measure neutron flux at fixed locations within the core in the power range of reactor operatio n and provide alarm in case of power distribution anomaly. Performance tests in DC mode have shown that the detectors have a neutron sensiti vity of 1 x 10(-17) A/nv and a gamma sensitivity of 2 x 10(-14) A/(R/h ). A gradual burnup due to neutron flux limits the useful life of thes e devices to about 2 yr. However, by operating the detector in Campbel ling mode, its operational life can be extended to six years. (C) 1998 Elsevier Science B.V. All rights reserved.