影锥
yǐng zhuī
- shadow cone
影锥
影锥[yǐng zhuī]
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钨-铜合金影锥屏蔽体屏蔽性能的MCNP程序计算
MCNP Calculation of Shielding Performance for W-Cu Shadow Shield
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利用MCNP程序对影锥屏蔽体的屏蔽性能进行计算和深入分析。
Calculation and analysis of the shielding performance were carried out by MCNP program for shadow shield .
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结果表明：影锥屏蔽体对于周围及样品造成的散射中子本底影响低于1.4%。
The results show that the neutron scattering background causing by shadow shield is less than 1.4 % .
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中子穿透影锥屏蔽体而产生的γ射线泄漏率为10-16~10-14数量级，对于中子散射微分截面的实验测量，其影响可以忽略不计。
The gamma-ray leakage rate emitted from shadow shield with neutron is between 10 ~ ( - 16 )~ 10 ~ ( - 14 ), and its disturbance to measurements of neutron scattering differential cross section can be ignored .