Chinese Physics C > 1978, Vol. 2 > Issue(4): 343-349

RADIOCHEMICAL INVESTIGATION OF MASS DISTRIBUTIONS IN¹²C-INDUCED FISSION OF²⁰⁹Bi AND²³⁸U

Institute of Modern Physics, Academia Sinica

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The yields of 15 and 17 fission, products have been obtained by radiochemical determinations in ¹²C-induced fission of ²⁰⁹Bi and ²³⁸U respectively. From these data, the mass distributions of fission fragments are calculated based on three different hypotheses for the charge distribution. The results seem to indicate that the hypothesis of equal charge displacement gives the best fit to the Gaussian distribution for the masses of the fission fragments. By comparison with the mass distributions for ²⁰⁹Bi ( ¹²C, f), ²³⁸U( ¹²C, f) and ¹⁹⁷Au( ¹²C, f) in our early measurement, we find that for fission parameter Z ²/A>37, the width of the mass distributions increases with Z ²/A rapidly.

References

[1]

H. M. Blann, Phys. Rev., 123(1961), 1365; UCRL-9190, (1960).[2] C. A. Kapaмян и др., Я. Ф., 8 (1968), 690.[3] C. A. Kapaмян и др., Я. Ф., 9(1969), 715.[4] C. A. Kapaмян и др., " In Proceedings of the Second International Symposium on the Physcics and Chemistry of Fission", IAEA., (Vienna, 1969), 759.[5] J. V. Kratz et al., Phys. Rev. C, 13 (1976), 2347.[6] L. C. Northcliffe and R. Sehilling, "Nucl. Data Table", 1(1970), 233.[7] 中国科学院近代物理研究所一室核化学研究组，197Au (12C, f) 反应中裂变碎片质量分布的研究 (未发表).[8] C. M. Leder et al.,“Table of Isotopes" 6th Edn, Wiley, New York, (1967).[9] W. W. Bowman and K. W. Wacmurdo, "Atomic Data and Nuclear Data Tables", 13(1974),(2-3).[10] A. C. Wahl et al., "In Proceeding of the Second International Symposium on the physicics and Chemistry of Fission IAEA”, (Vienna, 1969), 819.[11] Alex, E. S. Green, Phys. Rev.,95(1954), 1006.[12] V. E. Viola, Jr and T. Sikkeland, Phys. Rev., 130(1963), 2044.[13] J. C. Bell et al.,“Statistical Properties of Nuclei" Plenum, New York, (1972), 489.[14] J. E. Freeman et al., J. Inorg, Nucl. Chem., 38(1976), 941.[15] C. L. Branquinho and V. J. Robinson, J. Inorg. Nucl. Chem., 39(1977), 921.[16] Б. A. Гвоэдев и др., Радиохимия, 14 (1972), 314.

[1]	YU Hong-Wei,CAI Cong-Hai,ZHAO Zhi-Xiang. Theoretical Calculations for p+²³⁸U Reactions. Chinese Physics C, 2005, 29(3): 263-267.
[2]	HAN Yin-Lu. Theoretical Analysis of Double Differential Cross Sections for n+²³⁸U Reaction. Chinese Physics C, 2004, 28(2): 177-180.
[3]	Zheng Jiwen,Wu Enjiu,Xiao Zhigang,Zhang Chun,Yin Shuzhi,Wang Sufang,Jin Genming,Tan Jilian,Jin Weiyang,Song Mingtao,Li Zuyu,Wu Heyu,He Zhiyong,Yin Xu,Peng Xinping,Jiang Dongxing,Qian Xing. Investigation of Fission Properties in the Reaction 25MeV/u⁴⁰Ar+²⁰⁹Bi. Chinese Physics C, 1999, 23(5): 409-416.
[4]	Yin Shuzhi,Jin Weiyang,Zhang Chun,Jin Genming,Zheng Jiwen,Wu Enjiu,Tan Jilian,Li Zuyu,Wang Sufang,Song Mingtao,Wu Heye,He Zhiyong,Jiang Dongxing,Qian Xing. Temperatures and Excitation Energies of Hot Nuclei in the Reactions of⁴⁰Ar+^natAg,²⁰⁹Bi at 25 MeV/u. Chinese Physics C, 1997, 21(S3): 29-34.
[5]	Yin Shuzhi,Jin Weiyang,Zhang Chun,Jin Genming,Zheng Jiwen,Wu Enjiu,Tan Jilian,Li Zuyu,Wang Sufang,Song Mingtao,Wu Heyu,He Zhiyong,Jiang Dongxing,Qian Xing. Temperatures and Excitation Energies of Hot Nuclei in Reactions of⁴⁰Ar+^natAg,²⁰⁹Bi at MeV/u. Chinese Physics C, 1997, 21(8): 680-685.
[6]	Dai Guangxi,Wu Heyu,Jin Genming,Qi Yujin,Li Zuyu,Duan Limin,He Zhiyong,Luo Qingzeng,Wen Wanxin,Zhang Baoguo,Dang Bingrong,Cai Wei. Ternary Fission Fragments Correlation Measurement in Reactions of⁴⁰Ar+¹⁵⁹Tb,¹⁹⁷Au,²⁰⁹Bi at 25MeV/u. Chinese Physics C, 1994, 18(S1): 20-27.
[7]	Luo Qingzheng,Dai Guangxi,Qi Yujin,Yan Dehong,Wu Heyu,Li Zuyu,Wen Wanxin,Zhang Baoguo,Dang Bingrong,He Zhiyong,Jin Genming. Fission Measurement and Analysis on 46.7MeV/A¹²C+¹⁵⁹Tb/¹⁹⁷)Au/²⁰⁹Bi System. Chinese Physics C, 1994, 18(3): 202-207.
[8]	WU He-Yu,DAI Guang-Xi,CAI Wei,QI Yu-Jin,YAN De-Hong,ZHANG Bao-Guo,DANG Bing-Rong,LUO Qin-Zheng,QIAN Xing,WEN Wan-Xin. Study of Ternary Fission Produced in¹²C Bombarding²⁰⁹Bi Target with Medium Energy. Chinese Physics C, 1993, 17(8): 680-684.
[9]	JIANG Dong-Xing,YE Yan-Lin,LIU Hong-Tao,LU Xi-Ting,HUANG Xiao-Lin,XIAO Bin,ZHAN Wen-Long,ZHU Yong-Tai,GUO Zhong-Yan,FENG En-Pu,XI Hong-Fei,LIU Guan-Hua,ZHOU Jian-Qun,YIN Shu-Zhi,ZHU Xiang,WANG Bing,FENG Jun. Linear Momentum Transfer in the Reactions Induced by 50MeV/A¹²C Bombarding²⁰⁹Bi and¹⁹⁷Au. Chinese Physics C, 1992, 16(6): 556-562.
[10]	LIU Guo-Xing,ZHENG Ji-Wen,CHEN Ke-Liang,WANG Su-Fang,BAI Xing-Ping,YU Xian. MEASUREMENT OF FISSION-FRAGMENT ANGULAR DISTRIBUTIONS AND EXCITATION FUNCTIONS FOR THE¹²C+²⁰⁹Bi AND¹⁴N+Pb REACTIONS. Chinese Physics C, 1990, 14(9): 829-834.
[11]	CUI Huan-Hua,KE Wei,ZHOU Jian,LV Wei-Chun. STUDY ON THE INTERACTION OF 960A MeV²³⁸U IONS WITH LIGHT NUCLEI. Chinese Physics C, 1989, 13(3): 199-204.
[12]	SHEN Wen-Qing. SIMULATION OF QCASI-FISSION INDUCED BY²³⁸U. Chinese Physics C, 1988, 12(2): 237-245.
[13]	LIU Guo-Xing,CHEN Ke-Liang,WANG Su-Fang,CAI Wei. ANGULAR DISTRIBUTIONS OF FISSION FRAGMENTS IN INTERACTIONS OF¹²C IONS WITH VARIOUS TARGETS. Chinese Physics C, 1988, 12(3): 379-385.
[14]	LIU Guo-Xing,CHEN Ke-Liang,MA Hong-Fan,WANG Su-Fang,CAI Wei. FISSION EXCITATION FUNCTION IN INTERATIONS OF¹²C IONS WITH VARIOUS TARGETS. Chinese Physics C, 1986, 10(5): 597-604.
[15]	DAI Guang-Xi,,,,,,,,,,,. THE SHELL EFFECT IN SEQUENTIAL FISSION INDUCED BY²³⁸U WITH ENERGY JUST ABOVE COULOMB BARRIER. Chinese Physics C, 1985, 9(4): 454-460.
[16]	Xu SHU-WEI. A COMPLEMENTARY ANALYSIS OF THE EXPERIMENTAL DATA FOR REACTION¹²C+²⁰⁹Bi AT THE INCIDENT ENERGIES SLIGHTLY ABOVE THE COULOMB BARRIER. Chinese Physics C, 1981, 5(4): 518-520.
[17]	XU SHU-WEI,RAN QI-HUI,MA HONG-FAN. A SEMI-CLASSICAL ANALYSIS ON THE REACTION¹²C+²⁰⁹Bi AT BOMBARDING ENERGIES SLIGHTLY ABOVE THE COULOMB BARRIER. Chinese Physics C, 1978, 2(6): 534-543.
[18]	SUN CHI-CHANG,HE YI SHEN,JIU-SHENG,CHEN HOU,CHEN KE-LIANG. THE MEASUREMENT OF COMPLETE FUSION CROSS-SECTIONS FOR THE REACTIONS¹²C+²⁷Al,¹²C+²⁰⁹Bi AND¹⁴N+Pb. Chinese Physics C, 1978, 2(2): 151-157.
[19]	GUO JUN-SHENG,SUN XI-JUN,XU XIAO-JI,WANG JUN,LIU HONG-YE. THE MEASUREMENT OF THE EXCITATION FUNCTIONS OF ISOTOPES OF Fr AND At, PRODUCED IN THE BOMBARDMENT OF¹²C ON²⁰⁹Bi. Chinese Physics C, 1978, 2(2): 143-150.
[20]	SHEN WEN-GING,XU SHU-WEI,WANG DA-YAN,XIE YUAN-XIANG,GUO ZHONG-YAN,LI ZU-YU.αPARTICLES EMITTED IN THE REACTION OF¹²C ON²⁰⁹Bi. Chinese Physics C, 1977, 1(1): 70-78.

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Nuclear Chemistry Group and Nuclear Physics Research Laboratory. RADIOCHEMICAL INVESTIGATION OF MASS DISTRIBUTIONS IN ¹²C-INDUCED FISSION OF ²⁰⁹Bi AND ²³⁸U[J]. Chinese Physics C, 1978, 2(4): 343-349.

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Received: 1977-09-05
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

RADIOCHEMICAL INVESTIGATION OF MASS DISTRIBUTIONS IN¹²C-INDUCED FISSION OF²⁰⁹Bi AND²³⁸U

Institute of Modern Physics, Academia Sinica

Received Date:1977-09-05

Accepted Date:1900-01-01

Available Online:1978-08-05

Abstract:The yields of 15 and 17 fission, products have been obtained by radiochemical determinations in¹²C-induced fission of²⁰⁹Bi and²³⁸U respectively. From these data, the mass distributions of fission fragments are calculated based on three different hypotheses for the charge distribution. The results seem to indicate that the hypothesis of equal charge displacement gives the best fit to the Gaussian distribution for the masses of the fission fragments. By comparison with the mass distributions for²⁰⁹Bi (¹²C, f),²³⁸U(¹²C, f) and¹⁹⁷Au(¹²C, f) in our early measurement, we find that for fission parameter Z²/A>37, the width of the mass distributions increases with Z²/A rapidly.

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RADIOCHEMICAL INVESTIGATION OF MASS DISTRIBUTIONS IN¹²C-INDUCED FISSION OF²⁰⁹Bi AND²³⁸U

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