眼病质子治疗中减少患者辐射暴露的方法

IF 0.2 Q4 PHYSICS, MULTIDISCIPLINARY
Victor A. Bakaev , Nikolay A. Ivanov , Zhanna S. Lebedeva
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引用次数: 1

摘要

本文主要讨论了在进行质子眼放射治疗时减少本底辐射的技术。这种减少的必要性源于低剂量效应对工作人员和患者的健康风险。我们已经触及了背景减少的两个方面,即在光束形成系统中产生的二次粒子的成本,以及由于正确评估能量高达60 MeV的质子的生物效应而对患者健康组织的剂量减少(在进行光束治疗时)。所得的计算结果证明,增加质子束直径可以使室内的本底辐射减少三分之一以上,并相应地减少人体的辐射暴露。正确考虑RBE,以减少邻近器官的辐射暴露是必要的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Methods for reducing patient radiation exposure during proton therapy for eye disease

The paper is dedicated to techniques for reduction of background radiation in the room for conducting proton eye radiotherapy. The necessity of this reduction stems from the health risk of low-dose effect on the personnel and patients. We have touched the aspects of background reduction both at the cost of secondary particles, produced in beam-forming systems, and the dose reduction for the patient's healthy tissue (when carrying out beam therapy) owing to correct assessment of the biological effects of protons with energies up to 60 MeV. The obtained calculation results prove that an increase in the proton beam diameter provides the possibility of reducing the background radiation by more than a factor of three in the room and of correspondingly decreasing the body's radiation exposure. It is necessary to take correct account of RBE to reduce the radiation exposure of adjacent organs.

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