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Chinese Physics C> 2006, Vol. 30> Issue(3) : 217-219 

Particle Evaporation in the Fission Process of Nuclei 100,104Sn

  •  Department of Physics,Southeast University, Nanjing 210096, China

  • The particle evaporation in the fission process of 100Sn is studied using a diffusion model. It is shown that the shell influences strongly the proton emission whereas its effect on neutron emission is negligible, in contrast with the case of 132Sn. It is due to the effect of the difference of neutron-to-proton ratio, N/Z,of the systems. This conclusion is further verified by comparing particle emission between 100Sn and 104Sn. Calculations indicate that high excitation energy weakens this N/Z effect.
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    [1] . Shrivastrva A et al. Phys. Rev. Lett., 1999, 82: 699; Ma-hata K et al. Phys. Rev., 2002, C65: 034613; Karamian SA et al. Eur. Phys. J., 2003, A17:492. Back B B et al. Phys. Rev., 1999, C60:0446023. YE W. High Energy Phys. and Nucl. Phys., 2003, 27(9):798.(in chinese)(叶巍.高能物理与核物理,2003, 27(9): 798)4. LU Z D et al. Z. Phys., 1986, A323: 477; Phys. Rev., 1990,C42: 707; YE W et al. Z. Phys., 1997, A359: 385; Eur.Phys. J., 2003, A18: 5715. Delagrange H et al. Z. Phys., 1990, A323: 4376. Sierk A J. Phys. Rev., 1986, C33: 20397. Myers W D, Swiatecki W J. LBL Preprint, 1994, LBL-36803; Nucl. Phys., 1996, A601: 1418. Ignatyuk A V et al. Sov. Nucl. Phys., 1975, 21: 2559. Arimoto Y et al. Phys. Rev., 1999, C59: 796; 1997, C55:1011(R)

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YE Wei. Particle Evaporation in the Fission Process of Nuclei 100,104Sn[J]. Chinese Physics C, 2006, 30(3): 217-219.
YE Wei. Particle Evaporation in the Fission Process of Nuclei 100,104Sn[J]. Chinese Physics C, 2006, 30(3): 217-219. shu
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Received: 2005-04-12
Revised: 1900-01-01
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Particle Evaporation in the Fission Process of Nuclei 100,104Sn

    Corresponding author: YE Wei,
  • Department of Physics,Southeast University, Nanjing 210096, China
  • Received Date: 2005-04-12
  • Accepted Date: 1900-01-01
  • Available Online: 2006-03-05

Abstract: The particle evaporation in the fission process of 100Sn is studied using a diffusion model. It is shown that the shell influences strongly the proton emission whereas its effect on neutron emission is negligible, in contrast with the case of 132Sn. It is due to the effect of the difference of neutron-to-proton ratio, N/Z,of the systems. This conclusion is further verified by comparing particle emission between 100Sn and 104Sn. Calculations indicate that high excitation energy weakens this N/Z effect.

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