Timing response characterization of MALTA monolithic pixel detectors

Abstract The MALTA monolithic active pixel detector has been developed to meet the stringent demands of future high-energy physics experiments. To assess its capabilities, we performed fast-timing studies to define a figure of merit for this family of detectors. Conventional laser techniques are hindered by reflections from the sensor's metal layers, which restrict material penetration. We developed a triggered micro-X-ray system designed for precise timing measurements, that employs a micro-X-ray source that generates X-rays from a Cu-Cr target, synchronized with an external trigger signal. After validating the system with an LGAD, we used it to evaluate the timing performance of MALTA and MALTA2 pixel detector prototypes, providing insights into their operational characteristics.

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Publication Details

Journal
Journal of Instrumentation
Published
2025-10-01
DOI
https://doi.org/10.1088/1748-0221/20/10/c10004
Primary Topic
Particle Detector Development and Performance
Type
article
Field-Weighted Citation Impact
0.00

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article

Timing response characterization of MALTA monolithic pixel detectors

Lucian Fasselt, D.V. Berlea, M. Vazquez Nunez, J. Weick et al.
Journal of Instrumentation
Particle Detector Development and Performance
article

Timing response characterization of MALTA monolithic pixel detectors

Lucian Fasselt, D.V. Berlea, M. Vazquez Nunez, J. Weick, L. Gonella, W. Snoeys, L. Li, M. Van Rijnbach, Prateek Behera, Sybren Worm, G. Dash, P. Jana, M. Gaži, I. Asensi Tortajada, P. Riedler, H. Pernegger, L. Flores Sanz De Acedo, C. Buttar, D. Bortoletto, T. Inada, Anusree Vijay, C. A. Solans Sanchez, S. Haberl
article en

Abstract

Abstract The MALTA monolithic active pixel detector has been developed to meet the stringent demands of future high-energy physics experiments. To assess its capabilities, we performed fast-timing studies to define a figure of merit for this family of detectors. Conventional laser techniques are hindered by reflections from the sensor's metal layers, which restrict material penetration. We developed a triggered micro-X-ray system designed for precise timing measurements, that employs a micro-X-ray source that generates X-rays from a Cu-Cr target, synchronized with an external trigger signal. After validating the system with an LGAD, we used it to evaluate the timing performance of MALTA and MALTA2 pixel detector prototypes, providing insights into their operational characteristics.

Journal of InstrumentationVol. 20(10)
University of Trieste (IT), Universitat de València (ES), Indian Institute of Technology Madras (IN), University of Oxford (GB), German Institute for Adult Education – Leibniz Centre for Lifelong Learning (DE), European Organization for Nuclear Research (CH), University of Glasgow (GB), University of Birmingham (GB)
Ministry of Education, India, Science and Engineering Research Board, Division of Human Resource Development
Openalex Percentile: Top 88%
Particle Detector Development and Performance
DOIOpen Access PDFOpenAlex
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