Analysis of radiation damage in silicon charge-coupled devices used for dark matter searches

Autor:	Lee, Steven J.
Rok vydání:	2022
Předmět:	Physics - Instrumentation and Detectors Condensed Matter - Materials Science High Energy Physics - Experiment Nuclear Experiment
Druh dokumentu:	Working Paper
Popis:	Nuclear recoils in crystal detectors generate radiation damage in the form of crystal defects that can be measured in scientific-grade CCDs as local hot spots of leakage current stimulated by temperature increases in the devices. In this proceeding, we use a neutron source to generate defects in DAMIC-M CCDs, and using increases in leakage current at different temperatures, we demonstrate a procedure for identifying crystal defects in the CCDs of the DAMIC-M experiment. This is the first time that individual defects generated from nuclear recoils have been studied. This technique could be used to distinguish nuclear recoils from electron recoils in some energy ranges, which would improve the ability of CCD detectors to search for weakly interacting dark matter. Comment: IDM 2022 conference prceeding
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2210.00469 Zobrazit plný text záznamu View this record from Arxiv