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Chinese Physics C> 2000, Vol. 24> Issue(10) : 927-932 

Energy Spectra of Intermediate Mass Fragments Emitted in 30 MeV/u 40Ar+115In Reaction

  •  Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000,China

  • The energy spectra of intermediate mass fragments (IMF) emitted in 30 MeV/u 40Ar+115In reaction has been measured. After analyzed the energy spectra of the same kind of IMF emitted at different angles,the dependence of emission mechanism of IMF on the emission angles has been obtained. Assumed that the speed of the moving sources and the Coulomb energies do not change with the emission angles,the moving sources fitting of the measured energy spectra have been completed by changing the intensities and the temperature parameters of the emission sources.The evolution of the portions and intensities of three different emission sources as a function of the emission angles has been discussed.
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  • References

    [1] . Sokolov A et al.Nucl.Phys.,1993,A562:273—3002. Wile J L et al.Phys.Rev.,1992,C45:2300—23193. WUH Y et al.Nucl.Phys.,1997,A617:385—3944. XU H S et al.Nucl.Sci.andTech.,1996,7:198—2015. GOU Q B et al.China Phys.Lett.,1999,16:95—976. GOU Quan Bu et al.High Energy Phys.and Nucl.Phys.(in Chinese),1999,23(4):328(苟全补等.高能物理与核物理,1999,23(4):328)7. GOU Quan Bu et al.High Energy Phys.and Nucl.Phys.(in Chinese),1999,23(6):512(苟全补等.高能物理与核物理,1999,23(6):512)8. Borderie B et al.Z.Phys.,1984,A318:315—3219. QIAN Tao et al.Chin.Phys.Lett.,1998,15:25510. Goldhaber A S.Phys.Lett.,1974,53B:306—30811. Guerreau D.Nucl.Phys.,1985,A447:37c—66c12. Fields D J et al.Phys.Rev.,1984,C30:1912—1923

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GOU QuanBu, ZHU YongTai, XU HuShan, WEI ZhiYong, LI SongLin, LU Jun, ZHANG YuHu, WANG Qi and JIANG ZhongHe. Energy Spectra of Intermediate Mass Fragments Emitted in 30 MeV/u 40Ar+115In Reaction[J]. Chinese Physics C, 2000, 24(10): 927-932.
GOU QuanBu, ZHU YongTai, XU HuShan, WEI ZhiYong, LI SongLin, LU Jun, ZHANG YuHu, WANG Qi and JIANG ZhongHe. Energy Spectra of Intermediate Mass Fragments Emitted in 30 MeV/u 40Ar+115In Reaction[J]. Chinese Physics C, 2000, 24(10): 927-932. shu
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Received: 1999-08-12
Revised: 1900-01-01
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Energy Spectra of Intermediate Mass Fragments Emitted in 30 MeV/u 40Ar+115In Reaction

    Corresponding author: GOU QuanBu,
  • Institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000,China
  • Received Date: 1999-08-12
  • Accepted Date: 1900-01-01
  • Available Online: 2000-10-05

Abstract: The energy spectra of intermediate mass fragments (IMF) emitted in 30 MeV/u 40Ar+115In reaction has been measured. After analyzed the energy spectra of the same kind of IMF emitted at different angles,the dependence of emission mechanism of IMF on the emission angles has been obtained. Assumed that the speed of the moving sources and the Coulomb energies do not change with the emission angles,the moving sources fitting of the measured energy spectra have been completed by changing the intensities and the temperature parameters of the emission sources.The evolution of the portions and intensities of three different emission sources as a function of the emission angles has been discussed.

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