Critical and subcritical mass calculations of curium-243 to -247 based on JENDL-3.2 for revision of ANSI/ANS-8.15

Okuno, Hiroshi; Kawasaki, Hiromitsu*

Journal of Nuclear Science and Technology, 39(10), p.1072 - 1085, 2002/10

https://doi.org/10.3327/jnst.39.1072

Critical and subcritical masses were calculated for a sphere of five curium isotopes from 243Cm to 247Cm, in metal and in metal-water mixtures, considering three reflector conditions: bare, with a water reflector or a stainless steel reflector. The calculation were made mainly with a combination of a continuous energy Monte Carlo neutron transport calculation code, MCNP, and the Japanese Evaluated Nuclear Data Library, JENDL-3.2. Other evaluated nuclear data files, ENDF/B-VI and JEF-2.2, were also applied to find differences in calculation results of the neutron multiplication factor originated from different nuclear data files. A large dependence on the evaluated nuclear data files was found in the calculation results.

Critical and subcritical masses of curium-245, -246 and -247 calculated with a combination of MCNP4A code and JENDL-3.2 library

Okuno, Hiroshi; Kawasaki, Hiromitsu*

JAERI-Research 2000-040, 44 Pages, 2000/09

JAERI-Research-2000-040.pdf:1.87MB

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