Application of a double-sided silicon-strip detector as a differential pumping barrier for NESR experiments at FAIR
Application of a double-sided silicon-strip detector as a differential pumping barrier for NESR experiments at FAIR
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DOI：
10.1016/j.nima.2011.06.075
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发表时间：
2011-10
影响因子：
1.4
通讯作者：
B. Streicher;P. Egelhof;S. Ilieva;N. Kalantar-Nayestanaki;H. Kollmus;T. Kröll;M. Mutterer;M. Schmid;M. Träger
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文献类型：
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作者：
B. Streicher;P. Egelhof;S. Ilieva;N. Kalantar-Nayestanaki;H. Kollmus;T. Kröll;M. Mutterer;M. Schmid;M. Träger
所提出的工作重点是开发差动泵系统，使用双面硅带探测器将存储环的超高真空与后续探测器和放置在辅助真空中的除气组件分开。这样的技术概念将提供在超高真空环境中使用类似望远镜的探测器系统的机会，例如存储环，而无需将整个系统封装在口袋中。因此，由于使用最里面的条状检测器作为活动窗口，它将能够以尽可能小的能量检测反冲粒子。我们的结果证明，这种组件是可行的，并且在实验误差范围内不会影响带状检测器的性能。超高真空侧达到 10−10mbar 压力区域，实现了优于六个数量级的真空分离。
The presented work focuses on the development of a differential pumping system using double-sided silicon-strip detectors to separate the ultra-high vacuum of a storage ring from subsequent detectors and outgassing components placed in an auxiliary vacuum. Such a technical concept will give the opportunity to use telescope-like detector systems in an ultra-high vacuum environment, such as a storage ring, without enclosing the entire system in a pocket. Therefore, it will enable the detection of recoil particles with the smallest possible energy due to the use of the innermost strip detector as an active window. Our results prove that such an assembly is feasible without having an effect, within experimental errors, on the performance of the strip detector. Vacuum separation better than six orders of magnitude was achieved with the ultra-high vacuum side reaching down to the 10−10mbar pressure region.