The \(^{12}\)C(n, 2n)\(^{11}\)C cross section from threshold to 26.5 MeV

The \(^{12}\)C(n, 2n)\(^{11}\)C cross section was measured from just below threshold to 26.5 MeV using the Pelletron accelerator at Ohio University. Monoenergetic neutrons, produced via the \(^3\)H(d,n)\(^4\)He reaction, were allowed to strike targets of polyethylene and graphite. Activation of both...

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Bibliographic Details
Published in:arXiv.org 2018-02
Main Authors: Yuly, M, Eckert, T, Hartshaw, G, Padalino, S J, Polsin, D N, Russ, M, Simone, A T, Brune, C R, Massey, T N, Parker, C E, Fitzgerald, R, Sangster, T C, Regan, S P
Format: Article
Language:English
Subjects:
Beta decay
Beta rays
Gamma rays
Neutron flux
Nuclear cross sections
Polyethylene
Polyethylenes
Online Access:Get full text
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Summary:The \(^{12}\)C(n, 2n)\(^{11}\)C cross section was measured from just below threshold to 26.5 MeV using the Pelletron accelerator at Ohio University. Monoenergetic neutrons, produced via the \(^3\)H(d,n)\(^4\)He reaction, were allowed to strike targets of polyethylene and graphite. Activation of both targets was measured by counting positron annihilations resulting from the \(\beta^+\) decay of \(^{11}\)C. Annihilation gamma rays were detected, both in coincidence and singly, using back-to-back NaI detectors. The incident neutron flux was determined indirectly via \(^{1}\)H(n,p) protons elastically scattered from the polyethylene target. Previous measurements fall into upper and lower bands, the results of the present measurement are consistent with the upper band.
ISSN:2331-8422
DOI:10.48550/arxiv.1707.09375