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arXiv physics/0512094physics.ins-det
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Micromegas探测器在CAST实验中的性能

Performance of the Micromegas detector in the CAST experiment

S. Aune, T. Dafni, G. Fanourakis, E. Ferrer Ribas, T. Geralis, A. Giganon, Y. Giomataris, I. G. Irastorza, K. Kousouris, K. Zachariadou

摘要:

为欧洲核子研究中心轴子搜索实验CAST设计的气体Micromegas探测器在第一阶段(包括2003年和2004年运行期)运行顺利。它在1- 10 keV的能量范围内具有良好的线性响应,具有良好的空间灵敏度和能量分辨率(在5.9keV处的半高宽为15-19%),并具有显著的稳定性。在先进的离线分析工具的支持下,探测器在2004年的运行中进行了升级,提高了背景抑制能力,导致平均速率为5x 10 ^-5计数/秒/平方厘米/千电子伏,切割效率为94%。此外,使用GEANT 4软件包,用蒙特卡罗模拟研究了检测到的背景的来源。

英文摘要:

The gaseous Micromegas detector designed for the CERN Axion search experiment CAST, operated smoothly during Phase-I, which included the 2003 and 2004 running periods. It exhibited linear response in the energy range of interest (1-10keV), good spatial sensitivity and energy resolution (15-19% FWHM at 5.9keV)as well as remarkable stability. The detector's upgrade for the 2004 run, supported by the development of advanced offline analysis tools, improved the background rejection capability, leading to an average rate 5x10^-5 counts/sec/cm^2/keV with 94% cut efficiency. Also, the origin of the detected background was studied with a Monte Carlo simulation, using the GEANT4 package.

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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