ON A METHOD OF DOSE RATE CALCULATION AT THE MAZE ENTRANCE OF MEDICAL LINEAR ACCELERATOR ROOMS

R. C. Falcao; E. Okuno

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ON A METHOD OF DOSE RATE CALCULATION AT THE MAZE ENTRANCE OF MEDICAL LINEAR ACCELERATOR ROOMS

机译：线性直线加速器迷宫进入口的剂量率计算方法研究

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An accurate and simple method of dose rate calculation at the entrance of mazes of medical linear accelerator facilities, based on the equations given in NCRP 49, is presented. It was found that the dose rate calculated using this method is nearer to both the measured and to the Monte Carlo simulated values by Al-Affan et al than the value obtained using the formula contained in NCRP 51. The proposed method takes into account the contribution of leakage radiation besides scattered radiation, while the NCRP 51 considers only the scattered radiation. In the present work, the dose equivalent rate due to scattered radiation is obtained by a different formalism from that of NCRP 51. It is shown that for the specific maze design, the weekly dose equivalent rate at the maze entrance obtained using the equation of NCRP 51 is greater than the value calculated by the method proposed in this paper. The thickness of door shielding, located at the maze entrance, is computed for both methods.

机译：提出了一种基于NCRP 49中给出的方程的医疗直线加速器设施的迷宫入口处准确而简单的剂量率计算方法。发现使用这种方法计算的剂量率比使用NCRP 51中包含的公式获得的值更接近Al-Affan等人的测量值和蒙特卡罗模拟值。建议的方法考虑了贡献除了散射辐射之外，泄漏辐射的数量是多少，而NCRP 51仅考虑散射辐射。在本工作中，由于散射辐射引起的剂量当量率是通过与NCRP 51不同的形式得出的。表明，对于特定的迷宫设计，使用NCRP方程获得的迷宫入口处的每周剂量当量率51大于通过本文提出的方法计算的值。两种方法都计算了位于迷宫入口处的门罩的厚度。

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《Radiation Protection Dosimetry》 |1999年第3期|225-227|共3页
作者
R. C. Falcao; E. Okuno;
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收录信息美国《科学引文索引》(SCI);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类 TL72;
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ON A METHOD OF DOSE RATE CALCULATION AT THE MAZE ENTRANCE OF MEDICAL LINEAR ACCELERATOR ROOMS

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