Vol. 4, 2019

Original research papers

Radiation Detectors

RADIATION HARD MONOLITHIC CMOS SENSORS WITH SMALL ELECTRODE SIZE FOR THE ATLAS EXPERIMENT IN THE HL-LHC

I. Asensi Tortajada et al.

Pages: 113–116

DOI: 10.37392/RapProc.2019.22

Mini-MALTA is a Monolithic Active Pixel Sensor prototype developed in the TowerJazz 180 nm CMOS imaging process, with a small collection electrode design (3um), and a small pixel size (36.4 um), on high resistivity substrates and large voltage bias. It targets the outermost layer of the ATLAS ITK Pixel detector for the HL-LHC. This design addresses the pixel in-efficiencies observed in MALTA and TJ-Monopix to meet the radiation hardness requirements. This contribution will present the results from characterisation in particle beam tests that show full efficiency up to 1E15 neq/cm2 and 70 Mrad.
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