Open AccessDecay heating power of various types of plutonium
Author(s) -
Zheng-Ming Gao,
Juan Zhao
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1707/1/012001
Subject(s) - plutonium , nuclear engineering , decay heat , radioactive waste , explosive material , nuclear power , isotope , plutonium 239 , radioactive decay , environmental science , nuclear physics , chemistry , radiochemistry , physics , engineering , neutron , organic chemistry , fission
Analysis of the influence of the decay heating power of plutonium is one of the important tasks of the process in design of nuclear reactors, nuclear waste disposal or mechanical analysis of nuclear explosive devices. The paper simulated the decay heating power of some isotopes by means of cascade decay dynamics, then numerical regression was done and some formulae were obtained describing the heating power of the isotopes respectively. Furthermore, the paper reached to a common formula describing the heating power of all kinds of plutonium, and the heating powers of various types of plutonium used in fields of nuclear energy, nuclear waste disposal or military were obtained. Comparing with other calculation methods, calculating the heating power of various types of plutonium using this common formula raised in the paper could result in higher precision and more efficient, and because of the time-dependence, the common formula could also be used in thermal-related analysis of plutonium considering the storage time.