Physics – Instrumentation and Detectors
Scientific paper
2011-01-21
Nucl.Instrum.Meth.A638:33-40,2011
Physics
Instrumentation and Detectors
Scientific paper
10.1016/j.nima.2011.01.181
Results on beam tests of 3D silicon pixel sensors aimed at the ATLAS Insertable-B-Layer and High Luminosity LHC (HL-LHC)) upgrades are presented. Measurements include charge collection, tracking efficiency and charge sharing between pixel cells, as a function of track incident angle, and were performed with and without a 1.6 T magnetic field oriented as the ATLAS Inner Detector solenoid field. Sensors were bump bonded to the front-end chip currently used in the ATLAS pixel detector. Full 3D sensors, with electrodes penetrating through the entire wafer thickness and active edge, and double-sided 3D sensors with partially overlapping bias and read-out electrodes were tested and showed comparable performance.
Alimonti G.
ATLAS 3D Collaboration
Barbero Marzio
Bates Richard
Betta Dalla G-F.
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