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Proceedings Paper

Measurement of production cross section of tritium from oxygen using semi-monoenergetic p-Be and p-Li neutrons
Author(s): Seiichi Shibata; Tadashi Shibata; Motoki Imamura; Y. Uwamino; T. Ohkubo; Shinkoh Satoh; N. Morikawa; N. Nogawa
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Paper Abstract

The formation cross sections of tritium from oxygen have been measured in p-Li and p-Be neutron fields installed at the INS SF cyclotron in order to estimate the production of tritium in the cooling water of accelerators. Irradiations were performed with the semi-monoenergetic neutrons produced from the 7Li(p,n) reaction at proton energies (Ep) from 20 up to 40 MeV in 5 MeV steps and those from 9Be(p,n) in 2.5 MeV steps with proton intensities of 2 - 5 (mu) A, which yields from 1011 to 1012 n/cm2 at the target position. The neutron energy spectra were determined by an NE-213 scintillator. The tritium produced in the water used as the oxygen target was extracted by a distillation method, and measured by a liquid scintillation counter. The excitation functions for 16O(n,t)14N reaction obtained by the p-Li and p-Be neutrons agreed well with each other within the experimental uncertainties.

Paper Details

Date Published: 3 March 1995
PDF: 4 pages
Proc. SPIE 2339, International Conference on Neutrons and Their Applications, (3 March 1995); doi: 10.1117/12.204158
Show Author Affiliations
Seiichi Shibata, Univ. of Tokyo (Japan)
Tadashi Shibata, Univ. of Tokyo (Japan)
Motoki Imamura, Univ. of Tokyo (Japan)
Y. Uwamino, Univ. of Tokyo (Japan)
T. Ohkubo, Univ. of Tokyo (Japan)
Shinkoh Satoh, Univ. of Tokyo (Japan)
N. Morikawa, Univ. of Tokyo (Japan)
N. Nogawa, Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 2339:
International Conference on Neutrons and Their Applications
George Vourvopoulos; Themis Paradellis, Editor(s)

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