A Beam Diagnostic System Operating on a Non Contacting Method Under Heavy Radiation Conditions
A Beam Diagnostic System Operating on a Non Contacting Method Under Heavy Radiation Conditions
复制标题
强辐射条件下非接触式束流诊断系统
DOI：
10.1109/tns.2010.2092790
复制
发表时间：
2011
影响因子：
1.8
通讯作者：
E. Kozik
中科院分区：
文献类型：
--
作者：
Y. Teterev;G. Kaminski;P. T. Huong;E. Kozik
本文介绍了采用非拦截测量方法的一次束流诊断系统的设计和性能。它是为在恶劣的环境条件下工作而组装的。束流探测系统的主要部分是电离束流轮廓监测器（IBPM），其工作原理是电离残余气体。初级射束诊断系统提供足够的数据以绘制在在线状态下操作的监测区域中的射束电流的空间分布。用它监测了能量为30 ~ 50 A MeV<sup>的7</sup> Li、<sup>11</sup>B、<sup>32</sup>S束流和能量为4 ~ 5A MeV<sup>的20</sup> Ne、<sup>40</sup>Ar、<sup>86</sup>Kr、<sup>132</sup>Kr束流的截面。所有的测量都是在高伽马和中子通量的条件下进行的。诊断盒位于加速器附近，那里的中子通量超过10<sup>6</sup>中子/cm<sup>2</sup> s。束流在几nA到15 μA的范围内。该器件在10<sup>- 6</sup> × 10<sup>- 3</sup> mbar的真空中工作，束流低至几nA时，分辨率没有损失。运行时间长和紧急情况不会导致其可操作性降低。
The design and the performance of the primary beam diagnostic system operating on a non-intercepting measurement method are described. It was assembled for operation under harsh environmental conditions. The main part of the beam detection system is the Ionization Beam Profile Monitor (IBPM) operating on the ionization of the residual gas principle. The primary beam diagnostic system provides data sufficient to plot spatial distributions of the beam current in the monitored area operating in on-line regime. It was used to monitor the profiles of <sup>7</sup>Li, <sup>11</sup>B, <sup>32</sup>S beams in the energy range of 30 ÷ 50 AMeV and<sup>20</sup>Ne, <sup>40</sup>Ar, <sup>86</sup>Kr, <sup>132</sup>Xe beams at 4 ÷ 5 AMeV. All measurements were performed under the conditions of high gamma and neutron flux. The diagnostic box was located in the vicinity of the accelerator, where the neutron flux was over 10<sup>6</sup> neutrons/cm<sup>2</sup> s. The beam current was in the range of a few nA up to 15 μA. The device operates in vacuum on the level of 10<sup>-6</sup>÷10<sup>-3</sup> mbar without loss of resolution power at the beam current as low as a few nA. Long operation time and emergency situations do not lead to decrease of its operability.
使用光学涡流束测量流向负偏压电极的离子流速
DOI：
--
发表时间：
2020
期刊：
影响因子：
--
作者：
S. Yoshimura;K. Terasaka;M. Aramaki
通讯作者：
M. Aramaki