USE OF HE-4-FILLED PROPORTIONAL-COUNTERS AS NEUTRON SPECTROMETERS

Authors
WEYRAUCH M CASNATI A SCHILLEBEECKX P CLAPHAM M
Citation
M. Weyrauch et al., USE OF HE-4-FILLED PROPORTIONAL-COUNTERS AS NEUTRON SPECTROMETERS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 403(2-3), 1998, pp. 442-454
Citations number
28
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
403
Issue
2-3
Year of publication
1998
Pages
442 - 454
Database
ISI
SICI code
0168-9002(1998)403:2-3<442:UOHPAN>2.0.ZU;2-B
Abstract
Neutron response functions of two commercially available cylindrical H e-4-filled proportional counters (filling pressure about 2 MPa) have b een measured in the neutron energy range 144-14000 keV. Measurements w ere carried out using optimal settings for the detector high voltage a nd amplifier shaping time which were determined within the scope of th is study. The experimental results have been analyzed and compared to calculated response functions using empirically determined energy and resolution calibration functions. The theoretically determined respons e functions show good agreement with the measured response except for energies above 10 MeV. The discrepancies are attributed to unsatisfact ory electronics. The Monte-Carlo code Gas-filled neutron spectrometer response (GNSR) which has been developed for the calculation of respon se functions and efficiencies of gas-filled neutron detectors, is brie fly described. (C) 1998 Elsevier Science B.V. All rights reserved.