Chinese Physics C > 1996, Vol. 20 > Issue(4): 304-310

Evaporation of Intermediate-Mass Fragments From Hot-Nuclei in Reaction⁴⁰Ar+¹⁵⁹Tb at 25MeV/u

Department of Technical Physics,Peking University, Beijing 1008712 Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000

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Abstract：
The inclusive energy spectra of intermediate-mass fragments(IMF)(3≤ Z≤9)have been measured in the range from 20°to 155°for ⁴⁰Ar+ ¹⁵⁹Tb reaction at 25MeV/u.At backward angles,the spectra of IMF show a characteristic of statistic evaporation and can be well fitted by a moving source with same parameters.The obtained source velocity and temperature are in agreement with the corresponding values of hot nuclei produced in an incomplete-fusion process.Therefore,it seems that there IMF are statistically evaporated from a same source.The experimental results have for compared with the predictions of the statistical model using GEMINI code.

References

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Qian Xing, Jiang Dongxing, Qian Tao, Hua Hui, Lin Junsong, Wu Enjiu, Zheng Jiwen, Jin Genming, Yin Shuzhi, Tan Jilian, Jin Weiyang, Song Mingtao, Li Zuyu, He zhiyong and Wang Sufang. Evaporation of Intermediate-Mass Fragments From Hot-Nuclei in Reaction ⁴⁰Ar+ ¹⁵⁹Tb at 25MeV/u[J]. Chinese Physics C, 1996, 20(4): 304-310.

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Received: 1900-01-01
Revised: 1900-01-01

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Evaporation of Intermediate-Mass Fragments From Hot-Nuclei in Reaction⁴⁰Ar+¹⁵⁹Tb at 25MeV/u

Corresponding author:Qian Xing,

Department of Technical Physics,Peking University, Beijing 1008712 Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000

Received Date:1900-01-01

Accepted Date:1900-01-01

Available Online:1996-04-05

Abstract:The inclusive energy spectra of intermediate-mass fragments(IMF)(3≤Z≤9)have been measured in the range from 20°to 155°for⁴⁰Ar+¹⁵⁹Tb reaction at 25MeV/u.At backward angles,the spectra of IMF show a characteristic of statistic evaporation and can be well fitted by a moving source with same parameters.The obtained source velocity and temperature are in agreement with the corresponding values of hot nuclei produced in an incomplete-fusion process.Therefore,it seems that there IMF are statistically evaporated from a same source.The experimental results have for compared with the predictions of the statistical model using GEMINI code.

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Evaporation of Intermediate-Mass Fragments From Hot-Nuclei in Reaction⁴⁰Ar+¹⁵⁹Tb at 25MeV/u

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