A Study of the Elastic Scattering of 2-3 Mev Neutrons in Sulphur and Calcium


In the present work an associated particle time-of-flight spectrometer has been designed and used to study the elastic scattering of neutrons with energies of 2.99 Mev and 2.18 Mev. The 2H(d,n)3 He reaction was used as the source of neutrons. The time of origin of the neutron was determined by detecting the associated helium particle. Problems related to detecting the He particles and resolving them from a large number of other charged particles produced at the same time, have been overcome by using thin deuterated polyethylene targets. For the production of neutrons with an energy of 2.18 Mev the neutron yield was monitored by counting the associated FHe particles. Due to the incomplete resolution of the 3He particles the neutron yield at an energy of 2.99 Mev was determined by monitoring the proton yield from the competing 2H(d,p)3H reaction. Differential elastic scattering cross-sections were measured for calcium and sulphur at neutron energies of 2.99 Mev and 2.18 Mev respectively. Measurements were limited to scattering angles up to 80° for calcium and 100° for sulphur. The measurements obtained for calcium were compared with the results of Reber and Brandenburger at an energy of 3.29 Mev and with the results of Abramson et al at a neutron energy of 2.83 Mev. The results obtained for sulphur were comparable with the measurements of Holmqvist and Wiedling for a neutron energy of 2.47 Mev. The elastic scattering angular distributions were analysed using the optical model computer code RAROMP. In addition an associated particle time-of-flight system was investigated for the 2H(d,n)3 He reaction at the lower incident deuteron energy of 130 Kev which is more generally available.

Publication DOI: https://doi.org/10.48780/publications.aston.ac.uk.00011977
Divisions: College of Engineering & Physical Sciences
Additional Information: Copyright © Janicki, 1977. M. Janicki asserts their moral right to be identified as the author of this thesis. This copy of the thesis has been supplied on condition that anyone who consults it is understood to recognise that its copyright rests with its author and that no quotation from the thesis and no information derived from it may be published without appropriate permission or acknowledgement. If you have discovered material in Aston Publications Explorer which is unlawful e.g. breaches copyright, (either yours or that of a third party) or any other law, including but not limited to those relating to patent, trademark, confidentiality, data protection, obscenity, defamation, libel, then please read our Takedown Policy and contact the service immediately.
Institution: Aston University
Uncontrolled Keywords: elastic scattering,2-3 Mev neutrons,sulphur,calcium,cross-sections,neutron,experimental
Last Modified: 19 Dec 2023 13:08
Date Deposited: 13 Jan 2011 11:07
Completed Date: 1977
Authors: Janicki, Mark C.

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