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.
@article{arxiv.1204.1266,
title = {Planar Pixel Sensors for the ATLAS Upgrade: Beam Tests results},
author = {J. Weingarten and S. Altenheiner and M. Beimforde and M. Benoit and M. Bomben and G. Calderini and C. Gallrapp and M. George and S. Gibson and S. Grinstein and Z. Janoska and J. Jentzsch and O. Jinnouchi and T. Kishida and A. La Rosa and V. Libov and A. Macchiolo and G. Marchiori and D. Münstermann and R. Nagai and G. Piacquadio and B. Ristic and I. Rubinskiy and A. Rummler and Y. Takubo and G. Troska and S. Tsiskaridtze and I. Tsurin and Y. Unno and P. Weigell and T. Wittig},
journal= {arXiv preprint arXiv:1204.1266},
year = {2012}
}
Comments
28 pages, 27 figures, published on Journal of Instrumentation (JINST)