Measurement of Secondary Neutrons and Gamma Rays Produced by Neutron Interactions with Nitrogen and Oxygen Over the Incident Energy Range 1 to 20 MeV.
Measurement of Secondary Neutrons and Gamma Rays Produced by Neutron Interactions with Nitrogen and Oxygen Over the Incident Energy Range 1 to 20 MeV.

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Published: 1975

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The spectra of secondary neutrons and gamma rays produced by neutron interaction in thick samples (approximately 1 mean free path) of liquid nitrogen and liquid oxygen have been measured as a function of the incident neutron energy over the range 1 to 20 MeV. Data were taken for angles of 30$sup 0$, 55$sup 0$, 90$sup 0$, and 125$sup 0$. A linac (ORELA) was used as a neutron source with a 47-m flight path. Incident energy was determined by time-of-flight, while secondary spectra were determined by pulse-height unfolding techniques. The results of the measurements are presented in forms suitable for comparison to calculations based on the evaluated data files. (32 figures, 42 tables) (auth).