The Study of α Emission Induced by 46.7MeV/u 12C on 58Ni、115In and 197Au

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; MA Yu-Gang

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

The Study of α Emission Induced by 46.7MeV/u ¹²C on ⁵⁸Ni、¹¹⁵In and ¹⁹⁷Au

Institute of Modern Physics,Academia Sinica,Lanzhou 730000

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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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H. C. Britt et al., Phys. Rev., 124(1961), 877.[2] 沈文庆等，高能物理与核物理，1(1977)，70.[3] 诸永泰等，高能物理与核物理，4(1985)，447.[4] 谢元祥等，高能物理与核物理，1(1985)，71.[5] 戴光曦等，高能物理与核物理，1(1983)，86.[6] T. J. M. Symons et al., Phys. Lett., 94B (1980), 131[7] T. FuKuda et al., Nucl. Phys., A425(1984), 548,[8] S. Shaheen et al., Phys. Rev., C42 (1990), 1519.[9] B. V. Jacak et al., Phys. Rev., C35 (1987), 1751.[10] T. C. Awes et al., Phys. Rev., C25 (1982), 2361.[11] J. Pocfiodzalla et al., Phys Rev., C35 (1987); 1895.[12] 宋世战等，高能物理与核物理，2(1985)，200.[13] 张立等，高能物理与核物理，5(1986)，583.[14] C. Borcea et al., Nucl. Phys., 415(1984), 169.

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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/u ¹²C on ⁵⁸Ni、¹¹⁵In and ¹⁹⁷Au

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 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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The Study of α Emission Induced by 46.7MeV/u ¹²C on ⁵⁸Ni、¹¹⁵In and ¹⁹⁷Au

Corresponding author: ZHAO You-Xiong,

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