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Measuring the ATLAS ITk Pixel Detector Material via Multiple Scattering of Positrons at the CERN PS
/ Koch, Simon Florian (Oxford U.) ; Moser, Brian (Oxford U. ; CERN) ; Lindner, Antonín (CERN) ; Dao, Valerio (CERN ; SUNY, Stony Brook) ; Asensi, Ignacio (CERN) ; Bortoletto, Daniela (Oxford U.) ; Brekkum, Marianne (CERN) ; Dachs, Florian (CERN) ; Joos, Hans Ludwig (CERN ; Gottingen U., II. Phys. Inst.) ; van Rijnbach, Milou (CERN ; Oslo U.) et al.
The ITk is a new silicon tracker for the ATLAS experiment designed to increase detector resolution, readout capacity, and radiation hardness, in preparation for the larger number of simultaneous proton-proton interactions at the High Luminosity LHC. [...]
arXiv:2412.04686.
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Future developments of radiation tolerant sensors based on the MALTA architecture
/ Dobrijević, D (CERN ; Zagreb U.) ; Allport, P (Birmingham U.) ; Asensi, I (CERN) ; Berlea, D (DESY, Zeuthen) ; Bortoletto, D (Oxford U.) ; Buttar, C (Glasgow U.) ; Dachs, F (CERN) ; Dao, V (CERN) ; Denizli, H (Abant Izzet Baysal U.) ; Sanz de Acedo, L F (CERN) et al.
The planned MALTA3 DMAPS designed in the standard TowerJazz 180 nm imaging process will implement the numerous process modifications, as well as front-end changes in order to boost the charge collection efficiency after the targeted fluence of 1 × 10$^{15}$ 1 MeV n$_{eq}$/cm$^{2}$. The effectiveness of these changes have been demonstrated with recent measurements of the full size MALTA2 chip. [...]
2023 - 9 p.
- Published in : JINST
Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics 2022 (TWEPP 2022), Bergen, Norway, 19 - 23 Sep 2022, pp.C03013
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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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Radiation Hardness of MALTA2, a Monolithic Active Pixel Sensor for Tracking Applications
/ Berlea, D V (DESY, Zeuthen ; Humboldt U., Berlin (main)) ; Allport, P (Birmingham U.) ; Tortajada, I Asensi (CERN) ; Bortoletto, D (Oxford U.) ; Buttar, C (Glasgow U.) ; Charbon, E (Ecole Polytechnique, Lausanne) ; Dachs, F (CERN) ; Dao, V (CERN) ; Denizili, H (Abant Izzet Baysal U.) ; Dobrijevic, D (CERN) et al.
MALTA is a depleted monolithic active pixel sensor (DMAPS) developed in the Tower Semiconductor 180-nm CMOS imaging process. Monolithic CMOS sensors offer advantages over current hybrid imaging sensors in terms of both increased tracking performance due to lower material budget and ease of integration and construction costs due to the integration of read-out and active sensor into one ASIC. [...]
2023 - 7 p.
- Published in : IEEE Trans. Nucl. Sci. 70 (2023) 2303-2309
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MALTA monolithic pixel sensors in TowerJazz 180 nm technology
/ Solans Sánchez, C (CERN) ; Allport, P (Birmingham U.) ; Asensi Tortajada, I (CERN) ; Berlea, D V (Oslo U.) ; Bortoletto, D (Oxford U.) ; Dachs, F (CERN) ; Dao, V (CERN) ; Denizli, H (Abant Izzet Baysal U.) ; Dobrijevic, D (CERN ; Zagreb U.) ; Dyndal, M (CERN) et al.
Depleted Monolithic Active Pixel Sensors are of highest interest at the HL-LHC and beyond for the replacement of the Pixel trackers in the outermost layers of experiments where the requirement on total area and cost effectiveness is much bigger. They aim to provide high granularity and low material budget over large surfaces with ease of integration. [...]
2023 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1057 (2023) 168787
Fulltext: PDF;
In : 30th International Workshop on Vertex Detectors (VERTEX 2021), Online, UK, 27 - 30 Sep 2021, pp.168787
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Radiation hardness of MALTA2 monolithic CMOS imaging sensors on Czochralski substrates
/ van Rijnbach, Milou (CERN ; Oslo U.) ; Berlea, Dumitru Vlad (DESY, Zeuthen) ; Dao, Valerio (CERN) ; Gaži, Martin (Oxford U.) ; Allport, Phil (Birmingham U.) ; Asensi Tortajada, Ignacio (CERN) ; Behera, Prafulla (Indian Inst. Tech., Madras) ; Bortoletto, Daniela (Oxford U.) ; Buttar, Craig (Glasgow U.) ; Dachs, Florian (CERN) et al.
MALTA2 is the latest full-scale prototype of the MALTA family of Depleted Monolithic Active Pixel Sensors (DMAPS) produced in Tower Semiconductor 180 nm CMOS technology. In order to comply with the requirements of High Energy Physics (HEP) experiments, various process modifications and front-end changes have been implemented to achieve low power consumption, reduce Random Telegraph Signal (RTS) noise, and optimise the charge collection geometry. [...]
arXiv:2308.13231.-
2024-03-10 - 16 p.
- Published in : Eur. Phys. J. C 84 (2024) 251
Fulltext: document - PDF; 2308.13231 - PDF;
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