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Chinese Physics C> 1990, Vol. 14> Issue(8) : 739-744 

FISSION MEASUREMENT ON 5.5 TO 21.7MeV/A 28Si+197Au SYSTEM (Ⅱ) ANGULAR DISTRIBUTION OF ICF AND SF

  •  Institute of Modern Physics,Academia Sinica,P.O.Box 31,Lanzhou1 Lawrence Berkeley Laboratory,Berkeley,California,Ca 94720,U.S.A

  • According to the distribution of linear momentum transfer (lmt) obtained from the correlation measurement of fission partner,the events of Incomplete Fusion Fission (ICF) and Sequential Fission (SF) were distinguished.The fission angular distributions of both ICF and SF were obtained,respectively.
    With calculating the moment of inertia by Cassinian Ovaloid as the fission shape, the angular distributions were fitted by current procedure.The spins of fission nuclei corresponding to ICF and SF are extracted.The relation between spins and bombarding energy is discussed.Besides,the angular distribution in coincidence with complex particles is discussed.
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    [1] B. B. Back, Phys. Rev., C31 (1985), 2104.[2] B. B. Back et al., Phys. Rev., C32(1985), 195.[3] B. B. Back et al., Phys, Rev., C36(1987), 1364,[4] R. Vandenbosch et al., Nuclear Fissin, Academic Press, 1973.[5] J. Toke, R. Bock, G. Dai et al., Nucl. Phys., A440(1985), 327[6] G. Dai et al., Proc. of Tsukuba Int. Symp. on HI Fusion Reaction 1984, 205[7] V. E. Viola et al., Phys, Rev., C31(1985), 1550.[8] 戴光曦、刘希明等，高能物理与核物理，11(1987), 515,G. Dai et al., Chinese Physics, 8(1988), 427.

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DAI Guang-Xi, QI Yu-Jin, ZHENG Ji-Wen, LIU Xi-Ming and FISSION MEASUREMENT ON 5.5 TO 21.7MeV/A 28Si+197Au SYSTEM (Ⅱ) ANGULAR DISTRIBUTION OF ICF AND SF[J]. Chinese Physics C, 1990, 14(8): 739-744.
DAI Guang-Xi, QI Yu-Jin, ZHENG Ji-Wen, LIU Xi-Ming and FISSION MEASUREMENT ON 5.5 TO 21.7MeV/A 28Si+197Au SYSTEM (Ⅱ) ANGULAR DISTRIBUTION OF ICF AND SF[J]. Chinese Physics C, 1990, 14(8): 739-744. shu
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Received: 1900-01-01
Revised: 1900-01-01
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FISSION MEASUREMENT ON 5.5 TO 21.7MeV/A 28Si+197Au SYSTEM (Ⅱ) ANGULAR DISTRIBUTION OF ICF AND SF

    Corresponding author: DAI Guang-Xi,
  • Institute of Modern Physics,Academia Sinica,P.O.Box 31,Lanzhou1 Lawrence Berkeley Laboratory,Berkeley,California,Ca 94720,U.S.A
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1990-08-05

Abstract: According to the distribution of linear momentum transfer (lmt) obtained from the correlation measurement of fission partner,the events of Incomplete Fusion Fission (ICF) and Sequential Fission (SF) were distinguished.The fission angular distributions of both ICF and SF were obtained,respectively.
With calculating the moment of inertia by Cassinian Ovaloid as the fission shape, the angular distributions were fitted by current procedure.The spins of fission nuclei corresponding to ICF and SF are extracted.The relation between spins and bombarding energy is discussed.Besides,the angular distribution in coincidence with complex particles is discussed.

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