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15MeV质子致DNA损伤实验在HI-13串列加速器的Q3D磁谱仪终端上开展,实验内容包括两个方面,一是质子辐照方案的改进,二是质子致DNA损伤实验。质子辐照方案的改进,是因为质子质量较轻,穿透力极强,在由加速器引出直至样品照射端的过程中,极有可能与其他介质发生作用,从而产生一定数量的次级粒子、中子和γ射线,如何采取有效的措施屏蔽这些因素的影响,是质子致生物损伤研究中必须解决的关键问题之一。因此,我们
The 15MeV proton-induced DNA damage experiment was carried out on the Q3D magnetic spectrometer end of the HI-13 tandem accelerator. The experimental contents include two aspects. One is the improvement of the proton irradiation scheme and the other is the proton-induced DNA damage experiment. The improvement of proton irradiation scheme is due to its lighter proton and strong penetrating power. It is highly likely that it will interact with other mediators as it exits the accelerator up to the irradiation end of the sample, resulting in a certain amount of secondary particles How to take effective measures to shield the influence of these factors is one of the key issues that must be solved in the study of proton induced biological damage. therefore, we