Published August 1992 | Version v1
Journal article Metadata-only

New calculations of neutron response functions of Bonner spheres with helium-3 detectors

Creators

  • 1. Univ. Stuttgart, Inst. fuer Kernenergetik und Energiesysteme (Germany)

Description

We report our benchmark calculations performed with one- and two-dimensional SN-codes in the adjoint mode. Special emphasis is put on multigroup treatment of neutrons in the high and low energy ranges including upscattering, taking account of hydrogen bound in polyethylene. Sensitivity studies show the effects of the steel wall and the stem of the proportional counter together with the influence of changes of the moderator density. The responses are compared with recent measurements. (orig./HP)

Abstract (German)

Wir berichten ueber unsere Benchmark-Rechnung, in deren Rahmen der Neutronentransport mit ein- und zweidimensionalen SN-Programmen in adjungierter Form behandelt wurde. Die Bereiche schneller und thermischer Neutronen sind so in Gruppen unterteilt worden, dass die Aufwaertsstreuung thermischer Neutronen unter Beruecksichtigung der Wasserstoffbindung in Polyaethylen zuverlaessig erfasst ist. In Sensitivitaetsstudien wurden der Einfluss des Stahlgehaeuses und der Kabelzufuehrung des Proportionalzaehlrohrs und die Auswirkung verschiedener Moderatordichten ermittelt. Die Ansprechwahrscheinlichkeiten werden mit neuesten Messwerten ueberprueft. (orig./HP)

Additional details

Publishing Information

Journal Title
Kerntechnik (1987)
Journal Volume
57
Journal Issue
4
Journal Page Range
p. 251-254.
ISSN
0932-3902
CODEN
KERNEU

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
24002607
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
BENCHMARKS; BONNER SPHERE DETECTORS; CALIBRATION; DOSE EQUIVALENTS; ENERGY DEPENDENCE; HE-3 COUNTERS; MULTIGROUP THEORY; NEUTRON DOSIMETRY; NEUTRON FLUENCE; NEUTRON TRANSPORT THEORY; RESPONSE FUNCTIONS; SENSITIVITY
Descriptors DEC
DOSIMETRY; FUNCTIONS; MEASURING INSTRUMENTS; MODERATING DETECTORS; NEUTRON DETECTORS; PROPORTIONAL COUNTERS; RADIATION DETECTORS; TRANSPORT THEORY