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@ARTICLE{Fasselt:620287,
author = {Fasselt, Lucian and Worm, Steven and Berlea, Vlad Dumitru
and Solans Sanchez, Carlos Antonio and Dao, Valerio and
pernegger, Heinz and Asensi Tortajada, Ignacio and Behera,
Prafulla Kumar and Bortoletto, Daniela and Buttar, Craig and
Dash, Ganapati and Flores Sanz de Acedo, Leyre and Gazi,
Martin and Gonella, Laura and González, Vicente and Haberl,
Sebastian and Inada, Tomohiro and Jana, Pranati and Li, Long
and Riedler, Petra and Snoeys, Walter and Vázquez Nunez,
Marcos and Vijay, Anusree and Weick, Julian},
title = {{C}harge calibration of {MALTA}2, a radiation hard depleted
monolithic active pixel sensor},
journal = {Nuclear instruments $\&$ methods in physics research /
Section A},
volume = {1082},
issn = {0167-5087},
address = {[Amsterdam]},
publisher = {Elsevier},
reportid = {PUBDB-2025-00121},
pages = {170972 -},
year = {2026},
abstract = {MALTA2 is a depleted monolithic active pixel sensor (DMAPS)
designed for tracking at high ratesand typically low
detection threshold of ∼ 150 e−. A precise knowledge of
the threshold is crucialto understanding the charge
collection in the pixel and specifying the environment for
sensor application.A simple procedure is developed to
calibrate the threshold to unit electrons making use of
adedicated charge injection circuit and a Fe-55 source with
dominant charge deposition of 1600 e−.The injection
voltage is determined which corresponds to the injection
under Fe-55 exposure and isthe basis for charge calibration.
The charge injection circuit incorporates a capacitance with
designvalue of Cinj = 230 aF. Experimentally, the average
capacitance value for non-irradiated samples isfound to be
Cinj,exp = 257 aF. The $12\%$ divergence motivates the need
for the presented precisecalibration procedure, which is
proposed to be performed for each MALTA2 sensor. The
describedprocedure is feasible for any binary sensor that
incorporates an injection circuit.},
cin = {$Z_DET$},
ddc = {530},
cid = {$I:(DE-H253)Z_DET-20201126$},
pnm = {622 - Detector Technologies and Systems (POF4-622)},
pid = {G:(DE-HGF)POF4-622},
experiment = {EXP:(DE-MLZ)External-20140101},
typ = {PUB:(DE-HGF)16},
doi = {10.1016/j.nima.2025.170972},
url = {https://bib-pubdb1.desy.de/record/620287},
}