Development of residual gas ionization profile monitor for high intensity proton beams
Development of residual gas ionization profile monitor for high intensity proton beams
复制标题
DOI：
10.1109/nssmic.2005.1596431
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Y. Sato;K. Agari;E. Hirose;M. Ieiri;Y. Igarashi;S. Inaba;Y. Katoh;M. Minakawa;H. Noumi;M. Saito;Y. Suzuki;H. Takahashi;M. Takasaki;K. Tanaka;A. Toyoda;Y. Yamada;Y. Yamanoi;H. Watanabe
中科院分区：
文献类型：
--
作者：
Y. Sato;K. Agari;E. Hirose;M. Ieiri;Y. Igarashi;S. Inaba;Y. Katoh;M. Minakawa;H. Noumi;M. Saito;Y. Suzuki;H. Takahashi;M. Takasaki;K. Tanaka;A. Toyoda;Y. Yamada;Y. Yamanoi;H. Watanabe
在日本质子加速器研究综合体（J-PARC）上，研制了一种利用剩余气体电离的无损束流剖面监测器，用于连续监测3/spl × 10/sup 14/质子。利用在电极之间施加的均匀电场收集在真空至1 Pa的残余气体的电离中产生的撞击电子。施加平行于电场的均匀电场对于减少穿过磁通量的电子的扩散是必要的。在KEK 12 GeV-PS质子同步加速器EP 2-C束流线上安装了一台原型监测器。用本监测仪测得的剖面与用现有破坏性剖面监测仪测得的剖面一致。本监测器显示出足够的性能作为候选人的轮廓监测器在J-PARC。本文详细介绍了该监测仪的工作原理、测试实验结果及进一步的发展。
Nondestructive beam profile monitor utilizing ionizations of residual gas has been developed for continuous monitoring of 3/spl times/10/sup 14/ protons at Japan Proton Accelerator Research Complex (J-PARC). Knock-on electrons produced in the ionizations of residual gas vacuumed to 1 Pa are collected with a uniform electric field applied between electrodes. Applying a uniform electric field parallel to the electric field is essential to reduce diffusion of electrons crossing over magnetic flux. A prototype monitor has been constructed and installed in EP2-C beam line at KEK 12 GeV proton synchrotron (12 GeV-PS). The profiles measured with the present monitor agree with the ones measured with the existing destructive profile monitor. The present monitor shows sufficient performances as a candidate of the profile monitor at J-PARC. In the present article, the working principle of the present monitor, the results of test experiments, and further developments are described in detail.