Chinese Physics C > 1990, Vol. 14 > Issue(3): 266-270

A SYSTEMATIC STUDY OF EXCITATION FUNCTIONS FOR (n,2n) AND (n,3n) REACTIONS

YAO Li-Shan^,,
CAI Dun-Jiu

Lanzhou University1 Institute a Atomic Energy of China,Beijing

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Abstract：
The systematics of (n,2n) and (n,3n) cross sections has been studied by means of the evaporation model including the preequilibrium emission.A set of the empirical parameters have been extracted on the bases of analysing and fitting the measured data.The (n,2n) and (n,3n) cross sections of some nuclei have been predicted,and good agreement with the measured data have been obtained.

References

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S. Pearlstein, J. Nucl. Energy, 27(1973), 81.[2] L. Yao et al，Radia. Eff(GB)., 92(1986), 257.姚立山等，高能物理与核物理，11(1987)，533,[3] M. Segev et al., Ann. of Nuc1. Energy, 7(1980). 577.[4] 姚立山等，高能物理与核物理，12(1988)，683,[5] N. N. Flerov et al., J. Nucl. Energy, 4(1957), 529.[6] J. Zhang et al., Proc. Inter. Conf, on Nucl. Data for Basic and Applied Science, Santa Fe. New Mexico, 13-17 May(1985), 1611.[7] B. P. Bayhurst et al., Phys. Rev., C12(1975), 451.[8] L. R. Veeser et al., Phys. Rev., C16(1977), 1792[9] J. Frehaut et al., Proc. of Nucl. Cross Sections and Techn. (Washington), 2(1975), 855, BNL-NCS-51245(BNL), 1(1980), 399,

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YAO Li-Shan and CAI Dun-Jiu. A SYSTEMATIC STUDY OF EXCITATION FUNCTIONS FOR (n,2n) AND (n,3n) REACTIONS[J]. Chinese Physics C, 1990, 14(3): 266-270.

YAO Li-Shan and CAI Dun-Jiu. A SYSTEMATIC STUDY OF EXCITATION FUNCTIONS FOR (n,2n) AND (n,3n) REACTIONS[J]. Chinese Physics C, 1990, 14(3): 266-270. shu

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Received: 1900-01-01
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

A SYSTEMATIC STUDY OF EXCITATION FUNCTIONS FOR (n,2n) AND (n,3n) REACTIONS

YAO Li-Shan^,
CAI Dun-Jiu

Corresponding author:YAO Li-Shan,

Lanzhou University1 Institute a Atomic Energy of China,Beijing

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1990-03-05

Abstract:The systematics of (n,2n) and (n,3n) cross sections has been studied by means of the evaporation model including the preequilibrium emission.A set of the empirical parameters have been extracted on the bases of analysing and fitting the measured data.The (n,2n) and (n,3n) cross sections of some nuclei have been predicted,and good agreement with the measured data have been obtained.