目的：研究术中放疗深度剂量、表面剂量及漏射线的剂量的测量方法，总结临床应用经验。

Objective: To study the measurement and realization of depth dose, skin dose and leakage ray, and conclude some experience of clinical application in Intra-operative Radiation Therapy.

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基于蒙特卡罗方法的MCNP程序，研究了反应堆屏蔽水箱失水过程中的水箱表面辐射剂量的变化情况。

Based on the Monte Carlo MCNP code, the changes of radiation dose at the shield water tank surface during the process of lost water is studied.

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结果表明，长注入脉宽可以提高内表面注入能量，但对注入剂量影响不大；

The results showed that long pulse could increase impact energy on inner surface but had little effect on retained dose.

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