The 12C(n, 2n)11C 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 targets was measu...

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Bibliographic Details
Published in:Physical review. C 2018-02, Vol.97
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
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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 β + 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:2469-9985
2469-9993
DOI:10.1103/PhysRevC.97.024613