Element Distributions of Intermediate Mass Fragments Emitted in 30 MeV/u 40Ar+58,64Ni and 115In Reactions

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Gou Quanbu, Zhu Yongtai, Xu Hushan, Wei Zhiyong, Lu Jun, Zhang Yuhu, Wang Qi, Li Songlin and Wu Zhongli. Element Distributions of Intermediate Mass Fragments Emitted in 30 MeV/u 40Ar+58,64Ni and 115In Reactions[J]. Chinese Physics C, 1999, 23(6): 512-517.
Gou Quanbu, Zhu Yongtai, Xu Hushan, Wei Zhiyong, Lu Jun, Zhang Yuhu, Wang Qi, Li Songlin and Wu Zhongli. Element Distributions of Intermediate Mass Fragments Emitted in 30 MeV/u 40Ar+58,64Ni and 115In Reactions[J]. Chinese Physics C, 1999, 23(6): 512-517. shu
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Received: 1998-06-15
Revised: 1900-01-01
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Element Distributions of Intermediate Mass Fragments Emitted in 30 MeV/u 40Ar+58,64Ni and 115In Reactions

    Corresponding author: Gou Quanbu,
  • Institute of MOdern Physics, The Chinese Academy of Sciences, Lanzhou 730000

Abstract: The element distribuhons of intermediate mass fragments (IMF) emitted over an angular region of 5°—140° have been measured in the reachons of 30MeV/u 40Ar+58,64Ni and 115In. Within 20°—80° range the IMFs with Z=3-24 were observed. The IMF production cross section changes smoothly with its charge number,and the element distribuhon changes continuously when the IMF charge number increases across the charge number of the projectile. There is no strong dependence of the element distribution on the charge number of the projectile in this angular region.The transition nature of the reaction mechanism in the intermediate energy region and the power law of the IMF element distribution,as well as the dependence of element distributions on the threshold of the detectors were discussed.

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