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RBE of Cf-252 neutrons by mouse testes weight loss

Journal Article · · Int. J. Radiat. Oncol., Biol. Phys.; (United States)
Mouse testes weight decreased with increasing radiation dose following exposure to Cf-252 and its mixed neutron plus gamma radiation. The dose response for low dose rate (LDR) Cf-252 followed two components on an exponential plot of log percent weight loss vs. dose. Similar dose-response relationships were observed for acute /sup 60/Co or LDR Cs-137 radiations, but these required much larger doses to produce the same effect. The RBE was calculated against acute /sup 60/Co and Cs-137. There were no differences between acute /sup 60/Co and LDR Cs-137 effects. Cf-252 neutron RBE (n + ..gamma..) was 3.7 for testes weight loss. RBE/sub n/ for the neutrons only was 5.1. RBE for the radiosensitive portion was 4.0.
Research Organization:
Univ. of Kentucky, Lexington
OSTI ID:
6599312
Journal Information:
Int. J. Radiat. Oncol., Biol. Phys.; (United States), Journal Name: Int. J. Radiat. Oncol., Biol. Phys.; (United States) Vol. 10:6; ISSN IOBPD
Country of Publication:
United States
Language:
English

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