The Neutron Velocity Spectrum in a Heavy Moderator
- North American Aviation, Inc., Canoga Park, CA (United States). Atomics International Div.
The differential equation developed by Wilkins to represent the velocity spectrum of neutrons in a heavy moderator is investigated for the case of 1/v absorption. An exact solution to terms of second order in the absorption parameter allows an accurate determination of the asymptotic neutron density. For large absorption parameters a numerical integration can yield higher accuracy. The analytic solution is applied to the calculation of the total migration area of neutrons from a monoenergetic source.
- Research Organization:
- North American Aviation, Inc., Canoga Park, CA (United States). Atomics International Div.
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- DOE Contract Number:
- AT(11-1)-GEN-8
- NSA Number:
- NSA-12-001574
- OSTI ID:
- 4329905
- Report Number(s):
- NAA-SR--1940
- Country of Publication:
- United States
- Language:
- English
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