Nuclear Science and Engineering / Volume 11 / Number 3 / November 1961 / Pages 324-327
Technical Paper / dx.doi.org/10.13182/NSE61-A26011
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An analytical and experimental investigation of irradiated Ra:Be neutron sources has been carried out at the Bettis Laboratory and at the Materials Test Reactor (MTR) in Idaho. The significant isotopes in the Ra226, Ac227, and Th228 chains are described analytically and the neutron source strengths and γ dose rates are calculated. Comparison with experiment shows a reasonable predictability in most cases.