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輻射遷移理論於屏蔽分析之應用

The Application of the Radiation Transport Theory to the Shielding Analysis

摘要


本文敘述以波茲曼粒子遷移方程式爲理論基礎,藉由此方程式的各種簡化式解決輻射屏蔽問題。各種簡化方程式的方法包括:適合簡單結構計算的核仁法、可以描繪屏蔽內部各點粒子通率的分格座標法以及能夠精確分析複雜結構屏蔽的蒙地卡羅法。另外蒙地卡羅法還可以延伸應用到評估放射治療時體內輻射劑量之大小。

並列摘要


Based on the Boltzmann Particle Transport Equation, the radiation shielding problem can be solved by the various simplification of the equation. There are the kernel methods good for calculating the simple structure, the discrete ordinates method easy to obtain the flux distribution in the shield and the Monte Carlo method detailed analyzing the complex shielding structure. The application of the Monte Carlo method can extend to evaluate the internal dose during radiation therapy.

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