arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1902.01987physics.ins-dethep-ex
收藏

基于Timepix3芯片的TPC读出器性能

Performance of a GridPix TPC readout based on the Timepix3 chip

C. Ligtenberg, K. Heijhoff, Y. Bilevych, K. Desch, H. van der Graaf, M. Gruber, F. Hartjes, J. Kaminski, N. van der Kolk, P. M. Kluit, G. Raven, L. Scharenberg,… 展开作者

C. Ligtenberg, K. Heijhoff, Y. Bilevych, K. Desch, H. van der Graaf, M. Gruber, F. Hartjes, J. Kaminski, N. van der Kolk, P. M. Kluit, G. Raven, L. Scharenberg, T. Schiffer, S. Schmidt, J. Timmermans

摘要:

最终目标是在ILC上为TPC开发基于像素的读出,GridPix读出系统由一个具有集成放大网格的Timepix 3芯片组成,并嵌入到原型探测器中。在波恩的ELSA加速器上用2.5 GeV电子的测试束研究了性能。在漂移方向上和在读出平面中的轨道位置测量的误差由扩散支配。系统不确定度限制在10 $μ$ m以下。GridPix可以高效检测单个电离电子,从而实现能量损失测量和粒子识别。从截断的总和,能量损失(dE/dx)的分辨率为4.1%的有效跟踪长度为1米。使用相同类型的芯片,开发了四模块,可以平铺以覆盖ILC处的TPC读出平面。模拟研究表明,像素读出可以提高TPC在ILC的动量分辨率约20%。

英文摘要:

With the ultimate goal of developing a pixel-based readout for a TPC at the ILC, a GridPix readout system consisting of one Timepix3 chip with an integrated amplification grid was embedded in a prototype detector. The performance was studied in a testbeam with 2.5 GeV electrons at the ELSA accelerator in Bonn. The error on the track position measurement both in the drift direction and in the readout plane is dominated by diffusion. Systematic uncertainties are limited to below 10 $μ$m. The GridPix can detect single ionization electrons with high efficiency, which allows for energy loss measurements and particle identification. From a truncated sum, an energy loss (dE/dx) resolution of 4.1% is found for an effective track length of 1 m. Using the same type of chips, a Quad module was developed that can be tiled to cover a TPC readout plane at the ILC. Simulation studies show that a pixel readout can improve the momentum resolution of a TPC at the ILC by about 20%.

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。

↑