Performance of Edgeless Silicon Pixel Sensors on p-type substrate for the ATLAS High-Luminosity Upgrade

Marco Bomben (1) , Alvise Bagolini , Maurizio Boscardin , Luciano Bosisio , Giovanni Calderini (2) , Jacques Chauveau (2) , Audrey Ducourthial (2) , Gabriele Giacomini , Giovanni Marchiori (2) , Nicola Zorzi

1 LPTHE - Laboratoire de Physique Théorique et Hautes Energies
2 LPNHE (UMR_7585) - Laboratoire de Physique Nucléaire et de Hautes Énergies

In view of the LHC upgrade phases towards the High Luminosity LHC (HL-LHC), the ATLAS experiment plans to upgrade the Inner Detector with an all-silicon system. The n-on-p silicon technology is a promising candidate to achieve a large area instrumented with pixel sensors, since it is radiation hard and cost effective. The paper reports on the performance of novel n-on-p edgeless planar pixel sensors produced by FBK-CMM, making use of the active trench for the reduction of the dead area at the periphery of the device. After discussing the sensor technology an overview of the first beam test results will be given.

Keywords: Detectors; Telescopes; Threshold voltage; Metals; Silicon; Sensor phenomena and characterization; transition radiation detectors; silicon radiation detectors; beam test; edgeless silicon pixel sensor performance; p-type substrate; ATLAS High-Luminosity Upgrade; LHC upgrade phases; High Luminosity LHC; ATLAS experiment; all-silicon system; n-on-p silicon technology; radiation hard sensors; n-on-p edgeless planar pixel sensors; FBK-CMM; dead area; pixel sensor technology; HL-LHC tracker; Silicon pixel sensors; edgeless sensors; radiation detectors; semiconductor detector: pixel; semiconductor detector: technology; performance; ATLAS; tracking detector: upgrade

Domains: Instrumentation and Detectors [physics.ins-det]; High Energy Physics - Experiment [hep-ex]

Marco Bomben, Alvise Bagolini, Maurizio Boscardin, Luciano Bosisio, Giovanni Calderini, et al.. Performance of Edgeless Silicon Pixel Sensors on p-type substrate for the ATLAS High-Luminosity Upgrade. 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, Oct 2015, San Diego, United States. pp.7581991, ⟨10.1109/NSSMIC.2015.7581991⟩. ⟨hal-03450099⟩