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The EUROBALL neutron wall - design and performance tests of neutron detectors

Skeppstedt, O; Roth, HA; Lindstrom, L; Wadsworth, R; Hibbert, I; Kelsall, N; Jenkins, D; Grawe, H; Gorska, M and Moszynski, M, et al. (1999) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 421(3). p.531-541
Abstract
The mechanical design of the EUROBALL neutron wall and neutron detectors, and their performance measured with a Cm-246,Cm-248 fission source are described. The array consists of 15 pseudohexaconical detector units subdivided into three, 149 mm high, hermetically separated segments and a smaller central pentagonal unit subdivided into five segments. The detectors are filled with Bicron BC501A liquid scintillator. Each section of the hexaconical detectors is viewed by a 130 mm diameter Philips XP4512PA photomultiplier while the sections of pentagonal detectors are viewed by Philips XP4312B PMTs. The tests of n-gamma discrimination performed by zero-crossing and time-of-flight methods show a full separation of gamma- and neutron events down... (More)
The mechanical design of the EUROBALL neutron wall and neutron detectors, and their performance measured with a Cm-246,Cm-248 fission source are described. The array consists of 15 pseudohexaconical detector units subdivided into three, 149 mm high, hermetically separated segments and a smaller central pentagonal unit subdivided into five segments. The detectors are filled with Bicron BC501A liquid scintillator. Each section of the hexaconical detectors is viewed by a 130 mm diameter Philips XP4512PA photomultiplier while the sections of pentagonal detectors are viewed by Philips XP4312B PMTs. The tests of n-gamma discrimination performed by zero-crossing and time-of-flight methods show a full separation of gamma- and neutron events down to 50 keV recoil electron energy. These tests demonstrate the excellent timing properties of the detectors and an average time resolution of 1.56 ns. The factors determining the efficiency of neutron detectors are discussed. The total efficiency for the full array for a symmetric fusion-evaporation reaction is predicted to be 0.30. (C) 1999 Elsevier Science B.V. All rights reserved. (Less)
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subject
keywords
EUROBALL neutron wall, neutron detectors, n-gamma discrimination, time-of-flight
in
Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
volume
421
issue
3
pages
531 - 541
publisher
Elsevier
external identifiers
  • wos:000078285700015
  • scopus:0033080101
ISSN
0167-5087
DOI
10.1016/S0168-9002(98)01208-X
language
English
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no
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bee423b5-5be0-4b14-814c-014551e4c630 (old id 4282235)
date added to LUP
2014-02-03 10:31:46
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2017-09-10 04:25:35
@article{bee423b5-5be0-4b14-814c-014551e4c630,
  abstract     = {The mechanical design of the EUROBALL neutron wall and neutron detectors, and their performance measured with a Cm-246,Cm-248 fission source are described. The array consists of 15 pseudohexaconical detector units subdivided into three, 149 mm high, hermetically separated segments and a smaller central pentagonal unit subdivided into five segments. The detectors are filled with Bicron BC501A liquid scintillator. Each section of the hexaconical detectors is viewed by a 130 mm diameter Philips XP4512PA photomultiplier while the sections of pentagonal detectors are viewed by Philips XP4312B PMTs. The tests of n-gamma discrimination performed by zero-crossing and time-of-flight methods show a full separation of gamma- and neutron events down to 50 keV recoil electron energy. These tests demonstrate the excellent timing properties of the detectors and an average time resolution of 1.56 ns. The factors determining the efficiency of neutron detectors are discussed. The total efficiency for the full array for a symmetric fusion-evaporation reaction is predicted to be 0.30. (C) 1999 Elsevier Science B.V. All rights reserved.},
  author       = {Skeppstedt, O and Roth, HA and Lindstrom, L and Wadsworth, R and Hibbert, I and Kelsall, N and Jenkins, D and Grawe, H and Gorska, M and Moszynski, M and Sujkowski, Z and Wolski, D and Kapusta, M and Hellstrom, M and Kalogeropoulos, S and Oner, D and Johnson, A and Cederkäll, Joakim and Klamra, W and Nyberg, J and Weiszflog, M and Kay, J and Griffiths, R and Narro, JG and Pearson, C and Eberth, J},
  issn         = {0167-5087},
  keyword      = {EUROBALL neutron wall,neutron detectors,n-gamma discrimination,time-of-flight},
  language     = {eng},
  number       = {3},
  pages        = {531--541},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment},
  title        = {The EUROBALL neutron wall - design and performance tests of neutron detectors},
  url          = {http://dx.doi.org/10.1016/S0168-9002(98)01208-X},
  volume       = {421},
  year         = {1999},
}