强空间电荷效应下的三阶共振慢引出研究

西安质子应用装置（简称XiPAF）是一台空间质子辐射效应研究和元器件考核评估的专用平台。该装置主体是一台质子同步加速器，通过三阶共振引出质子束流，模拟宇宙射线中的质子束对元器件的辐照效应。要求引出束流能量覆盖从10MeV到200MeV的范围。.对于能量低于60MeV的慢引出，从物理设计到技术实现上都有相当多的困难，目前尚未见文献报导。传统的三阶共振慢引出设计方法都没有考虑空间电荷效应的影响，然而在同样的存储粒子数下，能量降低引起空间电荷效应剧烈增强，严重影响了引出效率和均匀性。.本申请拟开展空间电荷效应对三阶共振慢引出动力学影响的理论和实验研究，深入研究强空间效应对慢引出关键参数和物理过程的影响，并依托XiPAF质子同步加速器平台，对上述理论研究结果进行实验验证。.本课题的研究有助于更好地理解强空间电荷效应下慢引出的物理过程，对于扩展质子同步加速器慢引出的能量和粒子数范围有重要的指导意义。

Xi 'an Proton Application Facility (XiPAF) is dedicated for research on proton irradiation effects of microelectronic devices. The main constitution is a proton synchrotron, which extracts proton beam by third-order resonance method to simulate the irradiation effect of the proton beam. The extracted beam energy covers a range of 10MeV to 200MeV..For the slow extraction with energy lower than 60MeV, there are many difficulties from physical design to technical implementation, which have not been reported before. The traditional slow extraction method of third-order resonance does not include the influence of space charge effect. However, under the same total number of stored particles in a synchrotron, the space charge effect is greatly enhanced due to the decrease of energy, which seriously affects the extraction efficiency and uniformity..This application is intended to carry out theoretical and experimental research on the space charge effect of the third-order resonance slow extraction dynamics, including the influence of strong space effect on the key parameters and physical processes of slow extraction, and carry out experimental verification on the theoretical research results based on XiPAF..The research of this subject is helpful to better understand the physical process of slow extraction under the effect of strong space charge, and it is important for extending the range of energy and particle number of slow extraction of proton synchrotrons.