9MeV行波直线加速器用四极透镜系统状态分析
Ａnalysis on quadrupole system condition analysis of 9MeV traveling wave ＬＩＮＡＣ
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摘要: 分析了大型海关集装箱检测系统用的9 MeV电子直线加速器的四极透镜系统变为斜四极透镜系统对束流聚焦特性的影响。对三单元四极透镜系统聚焦参数、制造和安装误差进行了分析，给出了参数选择方法和合理的误差要求。以上计算利用束流动力学程序TRANSPORT完成。Abstract: Aiming at the triplet quadrupole system of 9 MeV traveling wave ＬＩＮＡＣ used for customs container inspection system, this paper analyses that the influences of beam focusing characteristics between quadrupole and skew quadrupole system. Along with analysis of focusing parameters, the errors of manufacture and installation are made for triplet quadrupoles. Finally, the method of choosing parameters and the reasonable tolerance requirement are described theoretically. Calculations mentioned above are accomplished by using the beamdynamics program TRANSPORT.
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Key words:
- linac quadrupole /
- skew quadrupole /
- beam characteristics /
- fit /
- technical tolerance /
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