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Title: Pulsed Neutron Monitoring at High Energy Electron Accelerators with Silver Lined Proportional Counter

Abstract

To meet the challenging requirement of pulsed neutron background measurement, which is present around electron accelerators at the Indus-1 facility of the Raja Ramanna Centre for Advanced Technology (RRCAT) Indore, a silver lined proportional counter with 0.2cps/n cm-2s-1 thermal neutron sensitivity has been developed. The detector has been tested for its performance in continuous thermal neutron field at Apsara reactor and in pulsed neutron field at Indus-1 facility. The detector shows {+-}11% signal linearity at various reactor powers and follows the silver decay scheme during reactor scram experiment. Off-line measurements made in pulsed neutron background at the Indus-1 facility compare well with nuclear track detectors (CR-39). For monitoring on-line neutron flux, electronic gating circuit was used that can switch off the scalar counter unit during the prompt X-ray response of the detector taking trigger pulse from the accelerator and experiments showed that the neutron flux measured by the detector is in close agreement with CR-39 values.

Authors:
;  [1];  [2];  [3]
  1. Electronics Division, Bhabha Atomic Research Centre, Mumbai 400 085 (India)
  2. Personnel Monitoring Section, Bhabha Atomic Research Centre, Mumbai 400 085 (India)
  3. Raja Ramanna Centre for Advanced Technology, Indore (India)
Publication Date:
OSTI Identifier:
21049212
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 879; Journal Issue: 1; Conference: 9. international conference on synchrotron radiation instrumentation, Daegu (Korea, Republic of), 28 May - 2 Jun 2006; Other Information: DOI: 10.1063/1.2436256; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCELERATORS; APSARA REACTOR; BEAM MONITORING; COMPARATIVE EVALUATIONS; ELECTRONS; GATING CIRCUITS; INDUS-1; NEUTRON DETECTION; NEUTRON FLUX; PERFORMANCE; PROPORTIONAL COUNTERS; PULSES; SENSITIVITY; SILVER; THERMAL NEUTRONS; X RADIATION

Citation Formats

Dighe, P. M., Ghodgaonkar, M. D., Dhairyawan, M. P., and Haridas, P.. Pulsed Neutron Monitoring at High Energy Electron Accelerators with Silver Lined Proportional Counter. United States: N. p., 2007. Web. doi:10.1063/1.2436256.
Dighe, P. M., Ghodgaonkar, M. D., Dhairyawan, M. P., & Haridas, P.. Pulsed Neutron Monitoring at High Energy Electron Accelerators with Silver Lined Proportional Counter. United States. doi:10.1063/1.2436256.
Dighe, P. M., Ghodgaonkar, M. D., Dhairyawan, M. P., and Haridas, P.. Fri . "Pulsed Neutron Monitoring at High Energy Electron Accelerators with Silver Lined Proportional Counter". United States. doi:10.1063/1.2436256.
@article{osti_21049212,
title = {Pulsed Neutron Monitoring at High Energy Electron Accelerators with Silver Lined Proportional Counter},
author = {Dighe, P. M. and Ghodgaonkar, M. D. and Dhairyawan, M. P. and Haridas, P.},
abstractNote = {To meet the challenging requirement of pulsed neutron background measurement, which is present around electron accelerators at the Indus-1 facility of the Raja Ramanna Centre for Advanced Technology (RRCAT) Indore, a silver lined proportional counter with 0.2cps/n cm-2s-1 thermal neutron sensitivity has been developed. The detector has been tested for its performance in continuous thermal neutron field at Apsara reactor and in pulsed neutron field at Indus-1 facility. The detector shows {+-}11% signal linearity at various reactor powers and follows the silver decay scheme during reactor scram experiment. Off-line measurements made in pulsed neutron background at the Indus-1 facility compare well with nuclear track detectors (CR-39). For monitoring on-line neutron flux, electronic gating circuit was used that can switch off the scalar counter unit during the prompt X-ray response of the detector taking trigger pulse from the accelerator and experiments showed that the neutron flux measured by the detector is in close agreement with CR-39 values.},
doi = {10.1063/1.2436256},
journal = {AIP Conference Proceedings},
number = 1,
volume = 879,
place = {United States},
year = {Fri Jan 19 00:00:00 EST 2007},
month = {Fri Jan 19 00:00:00 EST 2007}
}