CERN Accelerating science

CMS Note
Report number	CMS-CR-2013-432
Title	The CMS Phase I pixel detector
Author(s)	Gray, Julia Ann (Kansas U.)
Publication	2013
Collaboration	CMS Collaboration
Imprint	23 Nov 2013
Number of pages	11
Presented at	13th Topical Seminar on Innovative Particle and Radiation Detectors, Sienna, Italy, 7 - 10 Oct 2013
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; CMS
Abstract	The CMS silicon pixel detector allows for precise track parameter measurements and vertex reconstruction. The current detector is designed to operate at a maximum luminosity of 1$\times$10$^{34}$ cm$^{-2}$ s$^{-1}$. The Phase 1 pixel upgrade is planned to meet or exceed the necessary performance at the expected peak luminosity of 2$\times$10$^{34}$ cm$^{-2}$ s$^{-1}$ of the updated accelerator in an environment where there are many interactions per beam crossing. The new low mass pixel detector will have four barrel layers and three forward/backward disks to provide four pixel hits on tracks. Radiation damage, rate limitations, and performance are being simulated and measured.
Copyright/License	Preprint: (License: CC-BY-4.0)