|
|||||
|
|
Measurement of the dead layer thickness in a p-type point contact germanium detector |
|
| Authors: | Hao Jiang Qian Yue Yu-Lan Li Ke-Jun Kang Yuan-Jing Li Jin Li Shin-Ted Lin Shu-Kui Liu Hao Ma Jing-Lu Ma Jian Su Henry Tsz-King Wong Li-Tao Yang Wei Zhao Zhi Zeng |
| Abstract: | A 994 g mass p-type PCGe detector has been deployed during the first phase of the China Dark matter EXperiment, aiming at direct searches for light weakly interacting massive particles. Measuring the thickness of the dead layer of a p-type germanium detector is an issue of major importance since it determines the fiducial mass of the detector. This work reports a method using an uncollimated ~(133)Ba source to determine the dead layer thickness. The experimental design, data analysis and Monte Carlo simulation processes, as well as the statistical and systematic uncertainties are described. A dead layer thickness of 1.02 mm was obtained based on a comparison between the experimental data and the simulated results. |
| Keywords: | dead layer CDEX PPCGe Monte Carlo |
| 本文献已被 CNKI 等数据库收录！ | |
| 点击此处可从《中国物理C(英文版)》浏览原始摘要信息 | |
| 点击此处可从《中国物理C(英文版)》下载免费的PDF全文 | |