10th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors, Xi'an, China

CMS FPix sensor study for phase I upgrade

26 Sept 2015, 19:13

1m

Multi-function Hall (International Conference Center (Nanyang Hotel))

POSTER Pixels (including CCD's) - Charged particle tracking After dinner POSTER session, with drinks: (All presenters are requested/encouraged to attend their posters; All participants are requested to participate the session, with drinks!)

Speaker

Dr Kai Yi (University of Iowa)

Description

The next incarnation of the CMS forward pixel detector, to be installed at the year end extended technical stop 2016-17, will need to survive an integrated luminosity of 300 fb^-1 with the inner radius of the active region of the disks decreasing from 6 to 4.5 cm. Based on the Run 1 experience and irradiation studies, the Phase 1 FPIX sensors will again be n-on-n DOFZ, with parameters similar to those in the present run. We will review the design choices including a study during the prototyping phase to explore different p-stop layouts. Results from the quality assurance probing of the first batches of sensor wafers will be described. The IV measurements are particularly impressive with current densities in range of 3-4nA/cm^2 at the full depletion voltage.

Presentation materials

CMSFPixSensorPhaseIbest.pdf