Radiation experience with the CMS pixel detector

Autor:	Veszpremi, Viktor
Rok vydání:	2014
Předmět:	Physics - Instrumentation and Detectors High Energy Physics - Experiment
Druh dokumentu:	Working Paper
DOI:	10.1088/1748-0221/10/04/C04039
Popis:	The CMS pixel detector is the innermost component of the CMS tracker occupying the region around the centre of CMS, where the LHC beams are crossed, between 4.3 cm and 30 cm in radius and 46.5 cm along the beam axis. It operates in a high-occupancy and high-radiation environment created by particle collisions. Studies of radiation damage effects to the sensors were performed throughout the first running period of the LHC. Leakage current, depletion voltage, pixel readout thresholds, and hit finding efficiencies were monitored as functions of the increasing particle fluence. The methods and results of these measurements will be described together with their implications to detector operation as well as to performance parameters in offline hit reconstruction. Comment: 10 pages, 11 figures, conference proceedings for International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (PIXEL2014), elaborates on one section of arXiv:1402.0675; Corrected typos
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1411.5990 Zobrazit plný text záznamu View this record from Arxiv