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arXiv 0901.4938physics.ins-dethep-ex
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具有三GEM气体放大和TimePix读出的TPC

A TPC with Triple-GEM Gas Amplification and TimePix Readout

U. Renz

摘要:

我们目前的测量与创业板为基础的TPC原型和TimePix CMOS ASIC作为电荷收集阳极。在DESY的5 GeV电子束中进行了小型原型测试。测试了不同的GEM方向和几何形状。它示出的点分辨率为短的漂移距离优于20微米。在100 MHz时钟频率下,时间分辨率优于10 ns。此外,与放大的像素大小的实验研究解决。为了研究更长漂移距离的性能,在波恩运行了一个漂移长度为26 cm的腔室。还使用GEM和TimePix进行读出,记录了宇宙μ子和Sr90源的数据。空间分辨率和集群特性的漂移距离的依赖进行了研究。

英文摘要:

We present measurements with a GEM based TPC prototypes and the TimePix CMOS ASIC as charge collecting anode. Tests with a small prototype were performed in a 5 GeV electron beam at DESY. Different GEM orientations and geometries were tested. It is shown that the point resolution for short drift distances is better than 20 micrometer. The achieved time resolution is better than 10 ns at 100 MHz clock frequency. Furthermore, experimental studies with an enlarged pixel size are addressed. To study the performance for longer drift distances a chamber with 26 cm drift length is operated in Bonn. Using also GEM and TimePix for the readout, data with cosmic muons and a Sr90 source are recorded. The spatial resolution and cluster properties are studied in dependence on the drift distance.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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