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IO information-based component relevance estimation in a mixed-signal ASIC analog circuit
/ Weick, Julian (Darmstadt, Tech. U. ; CERN) ; Zoubir, A M (Darmstadt, Tech. U.) ; Riedler, P (CERN) ; Berlea, D V (DESY) ; Tortajada, I Asensi (CERN) ; Dobrijevic, D (Zagreb U.) ; Suligoj, Tomislav (Zagreb U.) ; Fasselt, L (DESY) ; Pernegger, H (CERN) ; Snoeys, W (CERN) et al.
With increasing demand for active sensor surface and compact modularization, monolithic active pixel sensors are gaining track in high-energy physics experiments. The analog circuits in these mixed-signal ASICs are often black boxes where the components’ function and the circuitry’s behavior can only be evaluated through simulation or educated guesses. [...]
2025 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1082 (2026) 170968
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Charge reconstruction from binary hit data on irradiated MALTA2 Czochralski sensors
/ Fasselt, Lucian (DESY ; Humboldt U., Berlin (main)) ; Asensi Tortajada, Ignacio (CERN) ; Behera, Prafulla (Indian Inst. Tech., Madras) ; Berlea, Dumitru Vlad (DESY ; Humboldt U., Berlin (main)) ; Bortoletto, Daniela (Oxford U.) ; Buttar, Craig (Glasgow U.) ; Dao, Valerio (Stony Brook U.) ; Dash, Ganapati (Indian Inst. Tech., Madras) ; Flores Sanz de Acedo, Leyre (CERN) ; Gazi, Martin (Oxford U.) et al.
MALTA2 is a depleted monolithic active pixel sensor (DMAPS) designed for tracking at high rates and is produced in the modified Tower 180nm CMOS imaging technology. The pixel pitch is 36.4µm and the sensing layer consists of either high resistivity epitaxial or Czochralski silicon. [...]
2025 - 6 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1080 (2025) 170747
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In : 17th Vienna Conference on Instrumentation (VCI2025), Vienna, Austria, 17 - 21 Feb 2025, pp.170747
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Study of MALTA2, a Depleted Monolithic Active Pixel Sensor, with grazing angles at CERN SPS 180 GeV/c hadron beam
/ Li, L. (Birmingham U.) ; Allport, P. (Birmingham U.) ; Asensi Tortajada, I. (CERN) ; Behera, P. (Indian Inst. Tech., Madras) ; Berlea, D.V. (DESY, Zeuthen ; Humboldt U., Berlin) ; Bortoletto, D. (Oxford U.) ; Buttar, C. (Glasgow U.) ; Dao, V. (CERN) ; Dash, G. (Indian Inst. Tech., Madras) ; Fasselt, L. (DESY, Zeuthen ; Humboldt U., Berlin) et al.
MALTA2 is a Depleted Monolithic Active Pixel Sensor designed to meet the challenging requirements of future collider experiments, in particularly extreme radiation tolerance and high hit rate. [...]
arXiv:2502.13590.
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Timing characterization of MALTA and MALTA2 pixel detectors using Micro X-ray source
/ Dash, G. (Indian Inst. Tech., Madras) ; Allport, P. (Birmingham U.) ; Asensi Tortajada, I. (CERN) ; Behera, P. (Indian Inst. Tech., Madras) ; Berlea, D.V. (DESY, Zeuthen) ; Bortoletto, D. (Oxford U.) ; Buttar, C. (Glasgow U.) ; Dao, V. (CERN) ; Fasselt, L. (DESY, Zeuthen) ; de Acedo, L. Flores Sanz (CERN) et al.
The MALTA monolithic active pixel detector is developed to address some of the challenges anticipated in future high-energy physics detectors. [...]
arXiv:2502.13330.
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Charge calibration of MALTA2, a radiation hard depleted monolithic active pixel sensor
/ Fasselt, Lucian (DESY, Zeuthen ; Humboldt U., Berlin (main)) ; Asensi Tortajada, Ignacio (CERN) ; Behera, Prafulla (Indian Inst. Tech., Madras) ; Berlea, Dumitru Vlad (DESY, Zeuthen ; Humboldt U., Berlin (main)) ; Bortoletto, Daniela (Oxford U.) ; Buttar, Craig (Glasgow U.) ; Dao, Valerio (Genoa U.) ; Dash, Ganapati (Indian Inst. Tech., Madras) ; de Acedo, Leyre Flores Sanz (CERN) ; Gazi, Martin (Oxford U.) et al.
MALTA2 is a depleted monolithic active pixel sensor (DMAPS) designed for tracking at high rates and typically low detection threshold of $\sim150\,\mathrm{e^-}$. A precise knowledge of the threshold is crucial to understanding the charge collection in the pixel and specifying the environment for sensor application. [...]
arXiv:2501.13562.-
2025-09-11 - 13 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1082 (2026) 170972
Fulltext: 2501.13562 - PDF; document - PDF;
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Development of a Novel Low-mass Module Flex PCB Using Nano-wire-based Flip-chip Interconnection
/ Weick, J. (CERN ; TU Darmstadt) ; Dachs, F. (CERN) ; Riedler, P. (CERN) ; Pinto, M. Vicente Barreto (Geneva U.) ; Zoubir, A.M. (TU Darmstadt) ; de Acedo, L. Flores Sanz (CERN) ; Tortajada, I. Asensi (CERN) ; Dao, V. (CERN) ; Dobrijevic, D. (CERN ; Zagreb U.) ; Pernegger, H. (CERN) et al.
The presented study introduces a novel low-mass, flexible printed circuit board (PCB) designed for the high-density integration of silicon pixel chips, utilizing a flip-chip integration strategy. [...]
CERN-EP-RDET-2025-002.
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Development of the radiation-hard MALTA CMOS sensor for tracking applications
/ Gustavino, G (CERN) ; Allport, P (Birmingham U.) ; Asensi Tortajada, I (CERN) ; Behera, P (Indian Inst. Tech., Madras) ; Berlea, D V (DESY, Zeuthen) ; Bortoletto, D (Oxford U.) ; Buttar, C (Glasgow U.) ; Dachs, F (CERN) ; Dao, V (CERN) ; Dash, G (Indian Inst. Tech., Madras) et al.
The MALTA family of Depleted Monolithic Active Pixel Sensors (DMAPS) is produced using Tower 180 nm CMOS technology, specifically targeting radiation-hard applications in the HL-LHC and beyond. Several process modifications have resulted in radiation hardness up to ${3 \times 10^{15}~1 ~\text{MeV}~\text{n}_{\text{eq}} /\text{cm}^2}$ and time resolution below 2 ns, with uniform charge collection efficiency across the chip formed of $512 \times 224$ pixels with a size of $36.4 \times 36.4~\mu\text{m}^2$. [...]
2024 - 7 p.
- Published in : PoS VERTEX2023 (2024) 048
Fulltext: PDF;
In : 32nd International Workshop on Vertex Detectors (VERTEX 2023), Sestri Levante, Italy, 16 - 20 Oct 2023, pp.048
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Quad-module characterization with the MALTA monolithic pixel chip
/ Dachs, F (CERN) ; Zoubir, A M (Darmstadt, Tech. U.) ; Sharma, A (CERN) ; Solans Sanchez, C (CERN) ; Buttar, C M (Glasgow U.) ; Bortoletto, D (Oxford U.) ; Dobrijevic, D (Zagreb U.) ; Berlea, D -V (DESY) ; Charbon, E (Ecole Polytechnique, Lausanne) ; Piro, F (CERN) et al.
The MALTA silicon pixel detector combines a depleted monolithic active pixel sensor (DMAPS) with a fully asynchronous front-end and readout. It features a high granularity pixel matrix with a 36.4 μm symmetric pixel pitch, low power consumption of <1 μW/pixel and low material budget with detector thicknesses as little as 50 μm. [...]
2024 - 3 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1064 (2024) 169306
In : PSD13: The 13th International Conference on Position Sensitive Detectors, Oxford, United Kingdom, 3 - 9 Sep 2023, pp.169306
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Depletion depth studies with the MALTA2 sensor, a depleted monolithic active pixel sensor
/ Berlea, D V (DESY, Zeuthen ; Humboldt U., Berlin) ; Allport, P (Birmingham U.) ; Asensi Tortajada, I (CERN) ; Behera, P (Indian Inst. Tech., Madras) ; Bortoletto, D (Oxford U.) ; Buttar, C (Glasgow U.) ; Dachs, F (CERN) ; Dao, V (CERN) ; Dash, G (Indian Inst. Tech., Madras) ; Dobrijevic, D (CERN ; Boskovic Inst., Zagreb) et al.
MALTA2 is a depleted monolithic active pixel sensor (DMAPS) developed in the Tower 180 nm CMOS imaging process. Monolithic CMOS sensors offer advantages over current hybrid imaging sensors both in terms of increased tracking performance due to lower material budget but also in terms of ease of integration and construction costs due to the monolithic design. [...]
2024 - 6 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1063 (2024) 169262
Fulltext: PDF;
In : 13th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors, Vancouver, Canada, 3 - 8 Dec 2023, pp.169262
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