Münster 2017 – scientific programme
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T: Fachverband Teilchenphysik
T 114: Pixeldetektoren 6 (gemeinsam mit HK)
T 114.2: Talk
Thursday, March 30, 2017, 17:15–17:30, F 073
Passive CMOS pixel sensors as large area alternatives for HL-LHC trackers — •Ivan Dario Caicedo Sierra1, Jochen Dingfelder1, Tomasz Hemperek1, Toko Hirono1, Fabian Hügging1, Jens Janssen1, Hans Krüger2, Anna Macchiolo1, David-Leon Pohl1, and Norbert Wermes1 — 1Physikalisches Institut der Universität Bonn — 2Max-Planck-Institut für Physik in München
The large area and intensity requirements of the inner tracking detector for the High Luminosity upgrade of the Large Hadron Collider call for detector developments at an affordable cost for mass production. In this talk, we present a passive CMOS sensor as a suitable option for new hybrid pixel detector designs which could fulfill the aforementioned demands.
The devices under test were n-in-p backside biased sensor prototypes in 150 nm LFoundry CMOS technology with a thickness of 100 and 300 um. Each sensor has both AC- and DC- coupled pixel regions, bump bonded to the ATLAS FE-I4 chip.
Results from measurements with these sensors show noise levels, leakage current and charge collection efficiency -before and after irradiation- comparable to those of the current ATLAS-IBL planar sensors.