Journal
JOURNAL OF INSTRUMENTATION
Volume 15, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1748-0221/15/02/P02005
Keywords
Front-end electronics for detector readout; Particle tracking detectors (Solid-state detectors); Radiation-hard detectors; Solid state detectors
Categories
Funding
- University of Bonn
- H2020 project AIDA-2020 [654168]
- Turkish Atomic Energy Authority (TAEK) [2018TAEK(CERN)A5.H6.F2-20]
- Marie Sklodowska-Curie Innovative Training Network of the European Commission Horizon 2020 Programme [675587]
- STFC [ST/R002444/1, ST/R002592/1, ST/S00016X/1, ST/S000860/1] Funding Source: UKRI
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Depleted Monolithic Active Pixel Sensor (DMAPS) prototypes developed in the TowerJazz 180 nm CMOS imaging process have been designed in the context of the ATLAS upgrade Phase-II at the HL-LHC. The pixel sensors are characterized by a small collection electrode (3 mu m) to minimize capacitance, a small pixel size (36.4 x 36.4 mu m(2)), and are produced on high resistivity epitaxial p-type silicon. The design targets a radiation hardness of 1 x 10(15) 1 MeV n(eq)/cm(2), compatible with the outermost layer of the ATLAS ITK Pixel detector. This paper presents the results from characterization in particle beam tests of the Mini-MALTA prototype that implements a mask change or an additional implant to address the inefficiencies on the pixel edges. Results show full efficiency after a dose of 1 x 10(15) 1 MeV n(eq)/cm(2).
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