Title: Energy-broadened proton beam for production of quasi-stellar neutrons from the 7Li(p,n)7Be reaction
Authors: FEINBERG G.SHOR A.BERKOVITS DEISEN Y.FRIEDMAN MGIORGINIS GeorgiosHIRSH T.KRASA ANTONINPAUL M.PLOMPEN ArjanTSUK E.
Citation: JOURNAL OF PHYSICS: CONFERENCE SERIES vol. 337 p. 012044
Publisher: INSTITUTE OF PHYSICS
Publication Year: 2012
JRC N°: JRC73934
ISSN: 1742-6588
URI: http://iopscience.iop.org/1742-6596/337/1/012044/
http://publications.jrc.ec.europa.eu/repository/handle/JRC73934
DOI: 10.1088/1742-6596/337/1/012044
Type: Articles in periodicals and books
Abstract: Production of quasi-stellar neutrons by the 7Li(p,n)7Be reaction has been used for measuring s-process cross sections and efforts to upgrade the proton beam intensity with RF linear accelerators are presently ongoing. We investigated the effect of an energy-broadened proton beam, as is expected for a RF linear accelerator, on the produced 25-keV semi-Maxwellian neutron spectrum and compared it to that of a Van de Graaff accelerator with well-defined proton energy. Neutron spectrum measurements from 0○ to 80○ were carried out with a pulsed proton beam at the IRMM Van de Graaff accelerator using time-of-flight techniques, both with a narrow energy spread (sigma≈1.5 keV) proton beam and with an energy-broadened beam (sigma≈20 keV) obtained by straggling through a Au-foil degrader. In the latter case, the neutron spectrum is closer to the Maxwellian flux distribution in the high neutron energy region.
JRC Directorate:Health, Consumers and Reference Materials

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.