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微束辐照装置是将辐照样品的束斑缩小到微米量级,能够对辐照粒子进行准确定位和精确计数的实验平台,是开展辐照材料学、辐照生物学、辐照生物医学以及微加工的有力工具.中国科学院近代物理研究所(IMP)正在研制中能重离子微束辐照装置.该装置以兰州重离子加速器(HIRFL)系统提供的中能和低能重离子束流为基础,采用磁聚焦方式形成微米束.束运线上两台铅垂方向的偏转磁铁辅以四极磁铁构成对称消色差系统,将束流导向地下室,再用高梯度的三组合四极透镜强聚焦形成微米束斑,在真空中或大气中辐照样品.它将成为国内首台能够提供从低能(10MeV/u)到中能(100MeV/u)的重离子微束的公共实验平台,用于定位、定量照射靶物质(生物细胞、组织或其它非生物材料等),有助于深入揭示重离子与物质相互作用的本质,也为探索重离子辐照效应的应用提供新的手段.
Microbeam irradiation device is to narrow the beam spot of the irradiated sample to the order of micrometers, and the experimental platform capable of accurately positioning and accurately counting the irradiated particles is to carry out radiation materials science, radiation biology, radiation biomedicine As well as a powerful tool for micromachining.The Chinese Academy of Sciences Institute of Modern Physics (IMP) is developing a medium energy heavy ion beam irradiation device.It is based on the Lanzhou heavy ion accelerator (HIRFL) system to provide medium and low energy heavy ion beam as Based on the use of magnetic focusing method to form a micro-beam.The beam line two vertical deflection magnets with four-pole magnets constitute a symmetrical achromatic system, the beam directed to the basement, and then the high gradient of the three combination quadrupole lens Focusing on the formation of a micro-beam spot and irradiating the sample under vacuum or in the atmosphere, it will become the first public experimental platform in China to provide heavy ion microbeams from low energy (10MeV / u) to medium energy (100MeV / u) Targeting and quantitatively irradiating target substances (biological cells, tissues or other non-biological materials, etc.) is helpful for revealing the essence of the interaction between heavy ions and matter and providing new means for exploring the application of heavy ion irradiation effects.