Title: The Use of C6D6 Detectors for Neutron Induced Capture Cross-Section Measurements in the Resonance Region
Authors: BORELLA ALESSANDROAERTS G.GUNSING FrankMOXON MichaelSCHILLEBEECKX PETERWYNANTS RUUD
Citation: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SP vol. 577 no. 3 p. 626-640
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2007
JRC N°: JRC36931
ISSN: 0168-9002
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC36931
Type: Articles in Journals
Abstract: Hydrogen-free deuterated benzene C6D6 liquid scintillators are widely used for high resolution neutron capture cross-section measurements at time-of-flight facilities, using the total energy detection principle in combination with the Pulse Height Weighting Technique (PHWT). The quality of the data deduced from such measurements depends on the accuracy of the detector response that is used in the calculation of the weighting function and on the normalization procedure. In addition, for nuclei with small capture to scattering ratios, i.e light and near neutron magic nuclei, a correction for the sensitivity of the capture detector to the scattered neutrons is required. The MCNP code was used to simulate both the gamma-ray and neutron transport in a C6D6 detection system including its surroundings. The weighting functions and neutron sensitivity were then deduced from the simulations and validated by experiments. The simulations have also been used to identify the sources of uncertainties in performing capture cross section measurements with C6D6 detectors.
JRC Institute:Institute for Reference Materials and Measurements

Files in This Item:
There are no files associated with this item.


Items in repository are protected by copyright, with all rights reserved, unless otherwise indicated.