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Don’t scrap ALARA—modernize it
For decades, U.S. radiation protection has rested on two pillars: the linear no-threshold (LNT) model and the principle of “as low as reasonably achievable” (ALARA). Together, these have shaped occupational dose management, regulatory limits, and emergency planning across the nuclear industry.
O. D. Simpson, R. P. Schuman
Nuclear Science and Engineering | Volume 11 | Number 2 | October 1961 | Pages 111-115
Technical Paper | doi.org/10.13182/NSE61-A28054
Articles are hosted by Taylor and Francis Online.
The low energy total neutron cross section of Pu241 has been measured from 0.02 ev to 2 kev using the Materials Testing Reactor (MTR) fast chopper. Curves of the total cross section are given and pronounced asymmetries are observed in several of the resonances below 12 ev. An estimate of the neutron strength function obtained from the average cross section in the kev energy region is (0.85 ± 0.15) × 10−4.
