Mass dependence of pion-induced fission cross sections on the level density parameter

Zafar Yasin; Warda Iram; Ikram Shahzad

doi:10.1088/1674-1137/36/9/007

Chinese Physics C> 2012, Vol. 36> Issue(9) : 831-835 DOI: 10.1088/1674-1137/36/9/007

Mass dependence of pion-induced fission cross sections on the level density parameter

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Abstract：
Fission probabilities and fission cross sections strongly depend on the mass number of the target and energy of the projectile. In this research work, a cascade-exciton model (using CEM95 computer code) has been implemented to observe the dependence of pion-induced fission cross sections and fission probabilities on the target mass and ratio of the level density parameter in fission to neutron emission. The analysis has been performed for both the positive and negative pions as the projectile at 80, 100 and 150 MeV energies. The computed cross sections satisfactorily reproduced the experimental findings when compared with the available experimental data in the literature. We observed a smooth dependence at 150 MeV, and a sharper dependence at 80 and 100 MeV pion energy, in the fissility region above 29.44.

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[1]

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Zafar Yasin, Warda Iram and Ikram Shahzad. Mass dependence of pion-induced fission cross sections on the level density parameter[J]. Chinese Physics C, 2012, 36(9): 831-835. doi: 10.1088/1674-1137/36/9/007

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Received: 2011-09-06
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Mass dependence of pion-induced fission cross sections on the level density parameter

Corresponding author: Zafar Yasin,

Received Date: 2011-09-06

Accepted Date: 1900-01-01

Available Online: 2012-09-05

Abstract: Fission probabilities and fission cross sections strongly depend on the mass number of the target and energy of the projectile. In this research work, a cascade-exciton model (using CEM95 computer code) has been implemented to observe the dependence of pion-induced fission cross sections and fission probabilities on the target mass and ratio of the level density parameter in fission to neutron emission. The analysis has been performed for both the positive and negative pions as the projectile at 80, 100 and 150 MeV energies. The computed cross sections satisfactorily reproduced the experimental findings when compared with the available experimental data in the literature. We observed a smooth dependence at 150 MeV, and a sharper dependence at 80 and 100 MeV pion energy, in the fissility region above 29.44.

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Mass dependence of pion-induced fission cross sections on the level density parameter

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