Chinese Physics C > 1992, Vol. 16 > Issue(11): 1022-1029

The Study of α Emission Induced by 46.7MeV/u¹²C on⁵⁸Ni、¹¹⁵In and¹⁹⁷Au

Institute of Modern Physics,Academia Sinica,Lanzhou 730000

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Abstract：
The energy spectra and angular distribution of α particles emitted from ¹²C induced reactions with ⁵⁸Ni, ¹¹⁵In and ¹⁹⁷Au have been measured.Three moving sources of emitting α particle are clearly seen from invariant cross section distribution in velocity coordinates.The experimental data were analyzed by using three moving sources.Extracted parameters of the source with half-beam velocity are in agreement with the systematic values from Fermi Gas Model.The energy spectra and the extracted parameters for various targets are discussed.The low energy peak in energy spectra is possibly from the emitted α particle from equilibrium system after pre-equilibrium emission of target-like products.The energetic α particles are mainly from projectile fragmentation and projectile-like fragmentation.

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ZHAO You-Xiong, GUO Zhong-Yan, ZHU Yong-Tai, ZHAN Wen-Long, HU Xiao-Qing, XI Hong-Fei, LIU Guan-Hua, ZHOU Jian-Qun, FENG En-Pu, YIN Shu-Zhi, WEI Zhi-Yong, Fan En-Jie and MA Yu-Gang. The Study of α Emission Induced by 46.7MeV/u ¹²C on ⁵⁸Ni、 ¹¹⁵In and ¹⁹⁷Au[J]. Chinese Physics C, 1992, 16(11): 1022-1029.

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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

The Study of α Emission Induced by 46.7MeV/u¹²C on⁵⁸Ni、¹¹⁵In and¹⁹⁷Au

Corresponding author:ZHAO You-Xiong,

Institute of Modern Physics,Academia Sinica,Lanzhou 730000

Received Date:1900-01-01

Accepted Date:1900-01-01

Available Online:1992-11-05

Abstract:The energy spectra and angular distribution of α particles emitted from¹²C induced reactions with⁵⁸Ni,¹¹⁵In and¹⁹⁷Au have been measured.Three moving sources of emitting α particle are clearly seen from invariant cross section distribution in velocity coordinates.The experimental data were analyzed by using three moving sources.Extracted parameters of the source with half-beam velocity are in agreement with the systematic values from Fermi Gas Model.The energy spectra and the extracted parameters for various targets are discussed.The low energy peak in energy spectra is possibly from the emitted α particle from equilibrium system after pre-equilibrium emission of target-like products.The energetic α particles are mainly from projectile fragmentation and projectile-like fragmentation.

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The Study of α Emission Induced by 46.7MeV/u¹²C on⁵⁸Ni、¹¹⁵In and¹⁹⁷Au

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