Properties of the TRIUMF Cyclotron Beam
Properties of the TRIUMF Cyclotron Beam
复制标题
TRUMF 回旋加速器光束的特性
DOI：
10.1007/978-3-0348-5520-4_48
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发表时间：
1975
期刊：
影响因子：
--
通讯作者：
P. Schmor
中科院分区：
文献类型：
--
作者：
M. Craddock;E. Blackmore;G. Dutto;C. Kost;G. Mackenzie;J. Richardson;L. Root;P. Schmor
8%的300 keV d. C.在TRIUMF回旋加速器中，不使用聚束器，离子源的束流可以传输到500 MeV。射束损失完全由注入时的40°相位接受度、20%的气体剥离和6%的洛伦兹剥离来解释;在1500圈的加速过程中，由于轨道动力学问题，没有明显的损失。相的历史，就像是在很好的协议与预测的基础上的磁场调查。研究了谐波线圈和注入参数对束流质量的影响，它们与斩波器一起使用，可使引出束流的能量分辨率降低到0.9MeV半高宽，使90%的束流水平发射度降低到4π mm. mrad，垂直发射度降低到11π mm. mrad。
8% of the 300 keV d. c. beam from the ion source can be transmitted to 500 MeV in the TRIUMF cyclotron, without using the buncher. The beam losses are entirely accounted for by the 40° phase acceptance at injection, 20% gas stripping and 6% Lorentz stripping; there are no significant losses due to orbit dynamic problems during 1500 turns of acceleration. The phase history, likeis in good agreement with predictions based on the magnetic field survey. The effect of the harmonic coils and injection parameters on beam quality has been investigated; they can be used, with a chopper, to reduce the energy resolution of the extracted beam to 0.9 MeV FWHM and the emittance for 90% of the beam to 4π mm. mrad horizontally and 11π mm. mrad vertically.