THE MEASUREMENT OF COMPLETE FUSION CROSS-SECTIONS FOR THE REACTIONS 12C+27Al, 12C+209Bi AND 14N+Pb

SUN CHI-CHANG; HE YI SHEN; JIU-SHENG; CHEN HOU; CHEN KE-LIANG

Chinese Physics C> 1978, Vol. 2> Issue(2) : 151-157

THE MEASUREMENT OF COMPLETE FUSION CROSS-SECTIONS FOR THE REACTIONS ¹²C+²⁷Al, ¹²C+²⁰⁹Bi AND ¹⁴N+Pb

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Abstract：
Mica track detectors were used for the measurement of evaporation residues and fission fragments of compound nuclei formed in ¹²C+²⁷Al, ¹²C+²⁰⁹Bi and ¹⁴N+Pb reactions. The complete fusion cross-sections and excitation functions were then obtained. By using the sharp cut-off model approximation, the values of the critical angular momenta were extracted from the complete fusion cross-sections. The results obtained were compared with the calculations based on current theories for critical angular momentum; they were found to agree within experimental uncertainties.

References

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[2]	WANG SuFang , Cavallaro Sl , JIN GenMing , Grzeszczuk A , Zipper W . Binary Reaction and Fusion Reaction in ²⁸Si+¹²C. Chinese Physics C, 2000, 24(10): 933-939.
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[4]	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 in ¹²C Bombarding ²⁰⁹Bi Target with Medium Energy. Chinese Physics C, 1993, 17(8): 680-684.
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[10]	FENG En-Pu , WANG Qi , ZHU Yong-Tai , YIN Xu , MIAO He-Bin , SUN Shu-Ming , LI Song-Lin , WU Zhong-Li , FAN Guo-Ying , XIE Yuan-Xiang , ZHAN Wen-Long . STUDY OF DEEP INELASTIC COLLISION ¹²C+²⁷Al AT ENERGY 61.8MeV. Chinese Physics C, 1986, 10(3): 323-329.
[11]	XIE Yuan-Xiang , WU Guo-Hua , ZHU Yong-Tai , MIAO Rong-Zhi , FENG En-Pu , YIN Xu , MIAO He-Bin , CAI Jing-Xiang , SHEN Wen-Qing , SUN Shu-MiNG , WEI Jian-Jun , LI Song-Lin . MEASUREMENT AND ANALYSIS OF EMITTED α PARTICLES IN REACTIONS OF ¹²C BOMBARDING ¹²C,²⁷Al AND ^natCa. Chinese Physics C, 1985, 9(1): 71-76.
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[14]	WU ZHONG-LI , ZHU YONG-TAI , XIA GUO-ZHONG , LIU BU-SHENG , LI FA-WEI , FAN GUO-YING . QUASI-ELASTIC AND DEEP INELASTIC REACTIONS OF ¹²C ON ²⁷Al. Chinese Physics C, 1981, 5(3): 364-371.
[15]	Xu SHU-WEI . A COMPLEMENTARY ANALYSIS OF THE EXPERIMENTAL DATA FOR REACTION ¹²C+²⁰⁹Bi AT THE INCIDENT ENERGIES SLIGHTLY ABOVE THE COULOMB BARRIER. Chinese Physics C, 1981, 5(4): 518-520.
[16]	WU ZHONG-LI , ZHU YONG-TAI , XIA GUO—ZHONG , LIU Bu-SHENG , LI FA-WEI , FAN GUO-YING . STUDY OF THE DEEP INELASTIC SCATTERING OF ¹²C ON ²⁷AI. Chinese Physics C, 1979, 3(2): 244-246.
[17]	Nuclear Chemistry Group , Nuclear Physics Research Laboratory . RADIOCHEMICAL INVESTIGATION OF MASS DISTRIBUTIONS IN ¹²C-INDUCED FISSION OF ²⁰⁹Bi AND ²³⁸U. Chinese Physics C, 1978, 2(4): 343-349.
[18]	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 OF ¹²C ON ²⁰⁹Bi. Chinese Physics C, 1978, 2(2): 143-150.
[19]	XU SHU-WEI , RAN QI-HUI , MA HONG-FAN . A SEMI-CLASSICAL ANALYSIS ON THE REACTION ¹²C+²⁰⁹Bi AT BOMBARDING ENERGIES SLIGHTLY ABOVE THE COULOMB BARRIER. Chinese Physics C, 1978, 2(6): 534-543.
[20]	SHEN WEN-GING , XU SHU-WEI , WANG DA-YAN , XIE YUAN-XIANG , GUO ZHONG-YAN , LI ZU-YU . α PARTICLES EMITTED IN THE REACTION OF ¹²C ON ²⁰⁹Bi. Chinese Physics C, 1977, 1(1): 70-78.

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SUN CHI-CHANG, HE YI SHEN, JIU-SHENG, CHEN HOU and CHEN KE-LIANG. THE MEASUREMENT OF COMPLETE FUSION CROSS-SECTIONS FOR THE REACTIONS ¹²C+²⁷Al, ¹²C+²⁰⁹Bi AND ¹⁴N+Pb[J]. Chinese Physics C, 1978, 2(2): 151-157.

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Received: 1977-08-05
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

THE MEASUREMENT OF COMPLETE FUSION CROSS-SECTIONS FOR THE REACTIONS ¹²C+²⁷Al, ¹²C+²⁰⁹Bi AND ¹⁴N+Pb

Received Date: 1977-08-05

Accepted Date: 1900-01-01

Available Online: 1978-04-05

Abstract: Mica track detectors were used for the measurement of evaporation residues and fission fragments of compound nuclei formed in ¹²C+²⁷Al, ¹²C+²⁰⁹Bi and ¹⁴N+Pb reactions. The complete fusion cross-sections and excitation functions were then obtained. By using the sharp cut-off model approximation, the values of the critical angular momenta were extracted from the complete fusion cross-sections. The results obtained were compared with the calculations based on current theories for critical angular momentum; they were found to agree within experimental uncertainties.

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THE MEASUREMENT OF COMPLETE FUSION CROSS-SECTIONS FOR THE REACTIONS ¹²C+²⁷Al, ¹²C+²⁰⁹Bi AND ¹⁴N+Pb

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THE MEASUREMENT OF COMPLETE FUSION CROSS-SECTIONS FOR THE REACTIONS ¹²C+²⁷Al, ¹²C+²⁰⁹Bi AND ¹⁴N+Pb

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