Influence of Curvature and Compressibility Energies upon Prescission Neutron Emission of Neutron-Deficient Fissioning Systems

MAO Ying-Chen; GU Bai-Ping

Chinese Physics C> 2007, Vol. 31> Issue(3) : 258-263

Influence of Curvature and Compressibility Energies upon Prescission Neutron Emission of Neutron-Deficient Fissioning Systems

MAO Ying-Chen ^, ,
GU Bai-Ping

Department of Physics, Nanjing University, Nanjing 210008, China2 Department of Mathematics and Physics, Nanjing University of TCM, Nanjing 210029, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The aim of this paper is to study the influence of the curvature and the compressibility energies on prescission neutron emission of four neutron-deficient systems: ¹⁸⁸Pt,²⁰⁰Pb, ²¹³Fr and ²²⁴Th within a modified version of the combined dynamical statistical model. The calculated results show that prescission neutron multiplicities from the modified model are closer to the data compared with the underestimate of the original one. The physics that the compressibility energy needs to be considered in this work is discussed.

References

[1]

. Hinde D J, Charity R J, Foote G S et al. Nucl. Phys., 1986,A452: 550-572; Newton J O, Hinde D J, Charity R J etal. Nucl. Phys., 1988, A483: 126-152; Cabrera J, Keutgen Th, Masri Y El et al. Phys. Rev., 2003, C68: 0346132. Lestone J P, Leigh J R, Newton J O et al. Phys. Rev. Lett.,1991, 67: 1078-1081; Ikezoe H, Shikazono N, Nagame Yet al. Phys. Rev., 1992, C46: 1922-1933; John B, ChoudhuryR K, Nayak B K et al. Phys. Rev., 2001, C65: 0543013. Hofman D J, Back B B, Dioszegi I et al. Phys. Rev. Lett.,1994, 72: 470-473; Dioszegi I, Shaw N P, Mazumdar I etal. Phys. Rev., 2000, C61: 0246134. Charity R J, McMahan M A, Wozniak G J et al. Nucl.Phys., 1988, A483: 371-405; Lestone J P. Phys. Rev.Lett., 1993, 70: 2245-2248; Ye W. Prog. Theor. Phys.,2003, 109: 933-942; Pomorski K, Bartel J, Richert J etal. Nucl. Phys., 1996, A605: 87-1195. Mavlitov N D, Frobrich P, Gontchar Ⅱ. Z. Phys., 1992,A342: 195-198; Frobrich P, Gontchar Ⅱ, Mavlitov N D.Nucl. Phys., 1993, A556: 281-306; Frobrich P, GontcharⅡ. Phys. Rep., 1998, 292: 131-2376. Nix J R, Sierk A J. Proceedings of the 6th Adriatic Conferenceon Nuclear Physics: Frontiers of Heavy-Ion Physics.Singapore: World Scienti c, 1990. 333; Hinde D J. Phys.Rev., 1989, C39: 2268-22847. Pomorski K, Dudek J. Phys. Rev., 2003, C67: 0443168. Gontchar Ⅱ, Litnevsky L A. Z. Phys., 1997, A359: 149-155; Gontchar Ⅱ, Litnevsky L A, Frobrich P. Comput. Phys. Commun., 1997, 107: 223-2459. Gettinger A E, Gontchar Ⅱ. J. Phys. G: Nucl. Part. Phys.,2000, 26: 347-35610. Blann M. Phys. Rev., 1980, C21: 1770-178211. Lynn J E. Theory of Neutron Resonance Reactions. Clarendon:Oxford, 196812. Hasse R W. Ann. Phys., 1971, 68: 377-46113. Brack M, Damgaard J, Jensen A S et al. Rev. Mod. Phys.,1972, 44: 320-40514. Gontchar Ⅱ, Frobrich P, Pischasov N I. Phys. Rev., 1993,C47: 2228-223515. Ignatyuk A V, Itkis M G, Okolovich V N et al. Sov. J. Nucl.Phys., 1975, 21: 612-63216. Toke J, Swiatecki W J. Nucl. Phys., 1981, A372: 141-15017. Mughabghab S F, Dunford C. Phys. Rev. Lett., 1998, 81:4083-408618. Reisdorf W. Z. Phys., 1981, A300: 227-238

[1]	WANG Hua-Lei , ZHANG Yu-Hu , ZHOU Xiao-Hong , GUO Ying-Xiang , LEI Xiang-Guo , XIE Yuan-Xiang , XU Shu-Wei , XING Ye-Bing , ZHENG Yong , LIU Min-Liang , XIE Cheng-Ying , SONG Li-Tao , , , , . β⁺/EC-Decay Study of ¹⁷⁶Ir Neutron-Deficient Isotope. Chinese Physics C, 2006, 30(3): 201-206.
[2]	JIA Ying , BAO Jing-Dong . Effect of Friction on Neutron Emission in Fission of Heavy Nuclei. Chinese Physics C, 2006, 30(9): 868-871.
[3]	MAO Ying-Chen , YE Wei , REN Zhong-Zhou . Effect of Deformation on Isospin Effect of Pre-scission Particle Emission. Chinese Physics C, 2006, 30(5): 423-427.
[4]	YE Wei . Dependence of Isospin Effects of Particle Evaporation on the Nuclear Shell Structure. Chinese Physics C, 2005, 29(3): 268-272.
[5]	YE Wei . Dependence of Isospin Effect in the Multiplicity of Pre-Scission Particles on the Angular Momentum. Chinese Physics C, 2004, 28(6): 611-616.
[6]	YE Wei . Influence of Angular Momentum on Shell Effects of Pre-scission Particle Emission of a Light Closed Shell Nucleus ¹³²Sn. Chinese Physics C, 2004, 28(2): 181-185.
[7]	YE Wei . Effects of Isospin on Multiplicity of Prescission Particles of Light Fissioning Systems. Chinese Physics C, 2004, 28(1): 73-77.
[8]	YE Wei . Isotopic Effects in Prescission Particle Emission. Chinese Physics C, 2003, 27(3): 233-237.
[9]	YE Wei . Effects of Shell on Pre-Scission Particle Emission. Chinese Physics C, 2003, 27(9): 798-802.
[10]	YE Wei . Effect of Rotational Degree of Freedom on the Enhanced Prescission Particle Emission in 10.6MeV/u ⁸⁴Kr+²⁷Al Reaction. Chinese Physics C, 2002, 26(1): 52-57.
[11]	YE Wei , SHEN WenQing . Effect of Deformation on Prescission Particle Emission in the Reaction of 10.6 MeV/u ⁸⁴Kr+²⁷Al. Chinese Physics C, 2000, 24(10): 945-948.
[12]	Han Hongyin , Huang Shengnian , Shen Guanren , Qiao Ying , Sun Gang . Anomalies of Neutron and γ-Ray Emission in Ternary Fission of ²⁵²Cf. Chinese Physics C, 1998, 22(3): 193-199.
[13]	Ye Wei , Shen Wenqing , Feng Jun , Ma Yugang , Wang Jiansong , Cai Xiangzhou , Wu Xizhen , Feng Renfa , Lu Zhongdao . Effect of Fission Path on Prescission Particle Emission. Chinese Physics C, 1998, 22(7): 639-645.
[14]	Zhou Xiaohong , Sun Xiangfu , Guo Yingxiang , Lei Xiangguo , Liu Zhong , Chen Xinfeng , Zhang Yuhu , Jin Hanjuan , Luo Yixiao , Wen Shuxian , Yuan Guanjun , Li Guangsheng , Yang Chunxiang . Study of Excited States in Neutron-Deficient ¹⁹⁷Bi. Chinese Physics C, 1995, 19(11): 961-967.
[15]	Wang Zhisong , Huo Yukun . Preequilibrium Neutron Emissions from Nucleus-Nucleus Collisions in Fermi Domain. Chinese Physics C, 1994, 18(9): 848-852.
[16]	SUN Zhe-Min , FENG Ren-Fa , WU Xi-Zhen , ZHU Yi-Zhong . Overshooting and Prescission Neutron Multiplicity in Nuclear Fission. Chinese Physics C, 1992, 16(6): 571-576.
[17]	XU Xiao-Ji , QU Xiu-Lan , CHENG Yuan . The Prediction of Proton Decay for Neutron Deficient Nuclei with A<70. Chinese Physics C, 1991, 15(7): 630-646.
[18]	ZHAO You-Xong , FENG Jun , GUO Zhong-Yan , SHEN Wen-Qing , ZHAN Wen-Long , ZHU Youg-Tai . The Effect of the Neutron Skin and the Neutron Distribution Diffusion on Nuclear Potential. Chinese Physics C, 1991, 15(11): 1025-1032.
[19]	SUN Tong-Yu , LI Wen-Xin , DONG Tian-Rong , FU Min . MASS DISTRIBUTION IN THE 14.7MeV NEUTRON-INDUCED FISSION OF ²³²Th. Chinese Physics C, 1988, 12(2): 221-228.
[20]	LI Jian-Ping , TANG Yue-Li , SHAO Bei-Bei , LIU Shu-Dong , ZHANG Zhen-Gang , QU Guo-Ying . INTELLIGENT ENVIRONMENTAL NEUTRON AND GAMMA MONITORING SYSTEM. Chinese Physics C, 1988, 12(1): 12-18.

Access

Get Citation

MAO Ying-Chen and GU Bai-Ping. Influence of Curvature and Compressibility Energies upon Prescission Neutron Emission of Neutron-Deficient Fissioning Systems[J]. Chinese Physics C, 2007, 31(3): 258-263.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-06-01
Revised: 2006-07-14

Article Metric

Article Views(3370)
PDF Downloads(675)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Influence of Curvature and Compressibility Energies upon Prescission Neutron Emission of Neutron-Deficient Fissioning Systems

Corresponding author: MAO Ying-Chen,

Department of Physics, Nanjing University, Nanjing 210008, China2 Department of Mathematics and Physics, Nanjing University of TCM, Nanjing 210029, China

Received Date: 2006-06-01

Accepted Date: 2006-07-14

Available Online: 2007-03-05

Abstract: The aim of this paper is to study the influence of the curvature and the compressibility energies on prescission neutron emission of four neutron-deficient systems: ¹⁸⁸Pt,²⁰⁰Pb, ²¹³Fr and ²²⁴Th within a modified version of the combined dynamical statistical model. The calculated results show that prescission neutron multiplicities from the modified model are closer to the data compared with the underestimate of the original one. The physics that the compressibility energy needs to be considered in this work is discussed.

HTML

Reference (1)

Influence of Curvature and Compressibility Energies upon Prescission Neutron Emission of Neutron-Deficient Fissioning Systems

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article