Nuclear energy release from fragmentation

doi:10.1016/j.nuclphysa.2016.04.002

	Nuclear energy release from fragmentation
	Li, Cheng 1,2; Souza, S. R.4; Tsang, M. B.1,2,5,6; Zhang, Feng-Shou 1,2,3
刊名	NUCLEAR PHYSICS A
	2016-08-01
卷号	952 页码:18-27
关键词	Nuclear energy Nuclear fragmentation Statistical multifragmentation model
ISSN号	0375-9474
DOI	10.1016/j.nuclphysa.2016.04.002
英文摘要	It is well known that binary fission occurs with positive energy gain. In this article we examine the energetics of splitting uranium and thorium isotopes into various numbers of fragments (from two to eight) with nearly equal size. We find that the energy released by splitting Th-230,Th-232 and U-235,U-238 into three equal size fragments is largest. The statistical multifragmentation model (SMM) is applied to calculate the probability of different breakup channels for excited nuclei. By weighing the probability distributions of fragment multiplicity at different excitation energies, we find the peaks of energy release for Th-230,Th-232 and U-235,U-238 are around 0.7-0.75 MeV/u at excitation energy between 1.2 and 2 MeV/u in the primary breakup process. Taking into account the secondary de-excitation processes of primary fragments with the GEMINI code, these energy peaks fall to about 0.45 MeV/u. (C) 2016 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[11025524] ; National Natural Science Foundation of China[11161130520] ; National Basic Research Program of China[2010CB832903] ; European Commission Seventh Framework Programme (Fp7-PEOPLE-IRSES)[269131] ; US National Science Foundation[PHY-1102511] ; CUSTIPEN (China-US Theory Institute for Physics with Exotic Nuclei) under U.S. Department of Energy[DE-FG02-13ER42025]
WOS关键词	STATISTICAL MULTIFRAGMENTATION ; BETA-DECAY ; FUSION ; MODEL ; NEUTRONS ; FISSION ; URANIUM ; POWER
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000377235300002
资助机构	National Natural Science Foundation of China ; National Basic Research Program of China ; European Commission Seventh Framework Programme (Fp7-PEOPLE-IRSES) ; US National Science Foundation ; CUSTIPEN (China-US Theory Institute for Physics with Exotic Nuclei) under U.S. Department of Energy
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/42819]
专题	中国科学院近代物理研究所
通讯作者	Zhang, Feng-Shou
作者单位	1.Beijing Normal Univ, Coll Nucl Sci & Technol, Minist Educ, Key Lab Beam Technol & Mat Modificat, Beijing 100875, Peoples R China 2.Beijing Radiat Ctr, Beijing 100875, Peoples R China 3.Natl Lab Heavy Ion Accelerator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 4.Univ Fed Rio de Janeiro, Inst Fis, Caixa Postal 68528, BR-21945970 Rio De Janeiro, Brazil 5.Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA 6.Michigan State Univ, Dept Astron, E Lansing, MI 48824 USA
推荐引用方式 GB/T 7714	Li, Cheng,Souza, S. R.,Tsang, M. B.,et al. Nuclear energy release from fragmentation[J]. NUCLEAR PHYSICS A,2016,952:18-27.
APA	Li, Cheng,Souza, S. R.,Tsang, M. B.,&Zhang, Feng-Shou.(2016).Nuclear energy release from fragmentation.NUCLEAR PHYSICS A,952,18-27.
MLA	Li, Cheng,et al."Nuclear energy release from fragmentation".NUCLEAR PHYSICS A 952(2016):18-27.