摘要
近年来,最高能量在250MeV左右的质子辐照装置因在质子治疗、质子辐照效应研究等领域的应用前景而受到广泛关注。清华大学目前正在计划建设一个此类质子辐照装置,其最高能量可达230 MeV,一个工作周期至少输出2×10^(11)个质子,且引出的束流是准连续的。该辐照装置的核心部分是一个能够将质子由7 MeV加速到230 MeV的同步质子加速器。简要介绍了该同步加速器的关键技术及设计结果,包括为实现高效累积足够流强而使用的剥离注入技术、为提升加速效率而使用的纵向绝热俘获技术以及为实现束流缓慢引出而使用的三阶共振引出技术。
In recent years, a medium energy （about 250 MeV） proton synchrotron has received great attention due to its wide applications in proton therapy, radiation effects experiment and so on. Tsinghua University is planning to build a proton radiation facility based on a medium energy proton synchrotron. The synchrotron can accelerate proton beam from 7 MeV to 230 MeV with a beam intensity of 2×10^11 protons per pulse, and the extraction beam is semi-continuous. In this paper, we present the key technologies in designing such a proton synchrotron, including the strip injection technology applied to accumulate enough protons efficiently, the adiabatic capture technology used to improve acceleration efficiency, and the third order resonance extraction technology for accomplishing a slow extraction.
出处
《现代应用物理》
2015年第2期85-89,106,共6页
Modern Applied Physics
