Contribution to a conference proceedings/Journal Article

PUBDB-2026-02798

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Charge collection parameterization of MALTA2, a depleted monolithic active pixel sensor

Fasselt, L. (Corresponding author)Extern*DESY* ; Behera, P. ; Berlea, D. V.DESY* ; Bortoletto, D. ; Buttar, C. ; Chembakan, T. ; Dao, V. ; Dash, G. ; Haberl, S. ; Inada, T. ; Isik, F. K. ; Jana, P. ; Li, X. ; Li, L. ; Pernegger, H. ; Riedler, P. ; Snoeys, W. ; Solans Sanchez, C. A.Extern* ; Swoboda, A. ; Turk Cakir, I. ; van Rijnbach, M. ; Núñez, M. V. ; Vijay, A. ; Weick, J. ; Worm, S.DESY*

2026
Inst. of Physics London

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Please use a persistent id in citations: doi:10.1088/1748-0221/21/04/C04001  doi:10.3204/PUBDB-2026-02798

Report No.: arXiv:2602.23139

Abstract: A fast simulation method is presented for a depleted monolithic active pixel sensor, which uses a data driven parameterization of the charge collection and propagation.This approach provides an efficient alternative to TCAD simulations, particularly for sensors whose proprietary process details — such as doping profiles or implant geometries — are unavailable.Data was obtained with a MALTA2 sensor fabricated in a 180 nm CMOS imaging technology on 30 µm epitaxial silicon using the MALTA beam telescope at CERN SPS.The model reproduces the measured in-pixel efficiency with high accuracy and enables a realistic yet computationally lightweight analog pixel simulation.This method will be further employed in optimizing the digital sensor design for applications in high-rate particle tracking and high-granularity calorimetry.

Keyword(s): Detector modelling and simulations II (electric fields ; charge transport ; multiplication and induction ; pulse formation ; electron emission ; etc) ; Particle tracking detectors ; Radiation-hard detectors

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Contributing Institute(s):

1. Z_DET (Z_DET)
2. Experiment ATLAS (Z_ATLAS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. AIDAinnova - Advancement and Innovation for Detectors at Accelerators (101004761) (101004761)
3. STREAM - Smart Sensor Technologies and Training for Radiation Enhanced Applications andMeasurements (675587) (675587)
4. AIDA-2020 - Advanced European Infrastructures for Detectors at Accelerators (654168) (654168)

Experiment(s):

1. LHC: ATLAS

Appears in the scientific report 2026

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF < 5 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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