Planar Pixel Sensors for the ATLAS Upgrade: Beam Tests results

Details Planar Pixel Sensors for the ATLAS Upgrade: Beam Tests results Planar Pixel Sensors for the ATLAS Upgrade: Beam Tests results

2012-04-05

arxiv.org/abs/1204.1266v1

Physics

Instrumentation and Detectors

27 pages, 41 figures, to be submitted to Journal of Instrumentation (JINST)

Scientific paper

Results of beam tests with planar silicon pixel sensors aimed towards the ATLAS Insertable B-Layer and High Luminosity LHC (HL-LHC) upgrades are presented. Measurements include spatial resolution, charge collection performance and charge sharing between neighbouring cells as a function of track incidence angle for different bulk materials. Measurements of n-in-n pixel sensors are presented as a function of fluence for different irradiations. Furthermore p-type silicon sensors from several vendors with slightly differing layouts were tested. All tested sensors were connected by bump-bonding to the ATLAS Pixel read-out chip. We show that both n-type and p-type tested planar sensors are able to collect significant charge even after integrated fluences expected at HL-LHC.

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