强激光与粒子束2011，Vol.23Issue(5)：1357-1360,4.DOI:10.3788/HPLPB20112305.1357
上海质子医疗装置的涡流效应
Estimate of eddy current effects in APTRON
张满洲 1李浩虎 1李德明1
作者信息
- 1. 中国科学院,上海应用物理研究所,上海,201204
- 折叠
摘要
Abstract
Eddy currect effects should be considered in a accelerator with magnets ramping with a large repetition frequency.Field components like dipolar, quadrupolar and sextupolar ones and heating effects induced by eddy current effects will affect the chromaticities, tunes, resonance, etc. The field components and their effects on beam parameters in the ring are evaluated for difference ramping curves and ramping frequencies. The most important effect is found to be from sextupolar component in the frequency range of proton therapy, and other components will play more important roles when the repetition frequency increases.Accordingly, the ramping curve for operation is selected as a sinusoidal curve with ramping time of 0.7 s.关键词
涡流/六极场/四极场/二极场/发热Key words
eddy current/sextupole fieid/quadrupole field/dipole field/heating分类
能源科技引用本文复制引用
张满洲,李浩虎,李德明..上海质子医疗装置的涡流效应[J].强激光与粒子束,2011,23(5):1357-1360,4.
