GAMMA-RAY TRANSPORT IN LIQUID NITROGEN.
Abstract
An important part of the radiation dose in the transport of fast neutrons through matter is the nuclear gamma radiation. Confidence in the ability to calculate the production and transport of the gamma radiation can be gained by comparison with measurements, preferable with simple geometry. This study concerns 14N because of its importance in the air transport problem. A Cockcroft-Walton type neutron generator produced a source of 14 MeV neutrons in the center and near the bottom of a large cylindrical tank of liquid nitrogen. Gamma rays produced by the interaction of these 14 MeV neutrons with the nitrogen nuclei were detected with a lithium drifted germanium detector. Separation of the fast gamma spectrum from the thermal capture spectrum was effected by pulsing the neutrons. The simple geometry approximates a point neutron source in an infinite medium of liquid nitrogen. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 30, 1969
- Accession Number
- AD0693618
Entities
People
- B. P. Benham
- G. M. Reynolds
- J. L. Russell Jr.
- S. M. Sperling
- W. E. Selph