中文摘要：

The broad-energy germanium (BEGe) detector,with the ability of background discrimination using pulseshape discrimination, is a competitive candidate for neutrinolessdouble beta decay (0mbb) experiments. In thispaper, we report our measurements of key parameters fordetector modeling in a commercial p-type BEGe detector.Point-like sources are used to investigate energy resolutionand linearity of the detector. A cylindrical volume source isused for efficiency calibration. With an assembled devicefor source positioning and a collimated 133Ba source, thedetector is scanned to check its active volume. Using an241Am point-like source, the dead layer thicknesses ismeasured at about 0.17 mm on the front and 1.18 mm onthe side. The detector characterization is of importance forBEGe detectors to be used in the 0mbb experiments atChina JinPing underground Laboratory (CJPL).

英文摘要：

The broad-energy germanium (BEGe) detector, with the ability of background discrimination using pulse shape discrimination, is a competitive candidate for neutrinoless double beta decay (0νββ) experiments. In this paper, we report our measurements of key parameters for detector modeling in a commercial p-type BEGe detector. Point-like sources are used to investigate energy resolution and linearity of the detector. A cylindrical volume source is used for efficiency calibration. With an assembled device for source positioning and a collimated ¹³³Ba source, the detector is scanned to check its active volume. Using an ²⁴¹Am point-like source, the dead layer thicknesses is measured at about 0.17?mm on the front and 1.18?mm on the side. The detector characterization is of importance for BEGe detectors to be used in the 0νββ experiments at China JinPing underground Laboratory (CJPL).