Home > Publications database > Charge calibration of MALTA2, a radiation hard depleted monolithic active pixel sensor > print

001     620287
005     20260113212127.0
024 7 _ |a 10.1016/j.nima.2025.170972
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024 7 _ |a 0167-5087
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024 7 _ |a 0168-9002
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024 7 _ |a 1872-9576
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024 7 _ |a 1872-9606
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024 7 _ |a arXiv:2501.13562
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100 1 _ |a Fasselt, Lucian
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245 _ _ |a Charge calibration of MALTA2, a radiation hard depleted monolithic active pixel sensor
260 _ _ |a Amsterdam
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520 _ _ |a MALTA2 is a depleted monolithic active pixel sensor (DMAPS) designed for tracking at high rates and typically low detection threshold of 200e−. Threshold calibration is crucial to understanding the charge collection in the pixel. A simple procedure is developed to calibrate the threshold to unit electrons making use of a dedicated charge injection circuit and an Fe-55 source with dominant charge deposition of 1611e−. The injection voltage corresponding to the signal under exposure of Fe-55 is determined and serves as the basis for charge calibration. The charge injection circuit incorporates a capacitance with design value of Cinj=230aF. Experimentally, the average capacitance value for non-irradiated samples is found to be Cinj,exp=255±35aF and varies between sensors by 14% in terms of standard deviation. The deviation from the design value as well as among sensors motivates the need for the presented calibration procedure, which is proposed to be performed for each MALTA2 sensor and reduces the uncertainty down to 3% depending on the sensor.
536 _ _ |a 622 - Detector Technologies and Systems (POF4-622)
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536 _ _ |a AIDAinnova - Advancement and Innovation for Detectors at Accelerators (101004761)
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536 _ _ |a AIDA-2020 - Advanced European Infrastructures for Detectors at Accelerators (654168)
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536 _ _ |a STREAM - Smart Sensor Technologies and Training for Radiation Enhanced Applications andMeasurements (675587)
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588 _ _ |a Dataset connected to CrossRef, Journals: bib-pubdb1.desy.de
650 _ 7 |a DMAPS
|2 autogen
650 _ 7 |a Charge calibration
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650 _ 7 |a Tracking
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650 _ 7 |a High-energy physics
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693 _ _ |0 EXP:(DE-MLZ)External-20140101
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|e Measurement at external facility
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700 1 _ |a Asensi Tortajada, Ignacio
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700 1 _ |a Behera, Prafulla
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700 1 _ |a Berlea, Dumitru Vlad
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700 1 _ |a Bortoletto, Daniela
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700 1 _ |a Buttar, Craig
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700 1 _ |a Dao, Valerio
|b 6
700 1 _ |a Dash, Ganapati
|b 7
700 1 _ |a de Acedo, Leyre Flores Sanz
|b 8
700 1 _ |a Gazi, Martin
|b 9
700 1 _ |a Gonella, Laura
|b 10
700 1 _ |a González, Vicente
|b 11
700 1 _ |a Haberl, Sebastian
|b 12
700 1 _ |a Inada, Tomohiro
|b 13
700 1 _ |a Jana, Pranati
|b 14
700 1 _ |a Li, Long
|b 15
700 1 _ |a Pernegger, Heinz
|b 16
700 1 _ |a Riedler, Petra
|b 17
700 1 _ |a Snoeys, Walter
|b 18
700 1 _ |a Solans Sánchez, Carlos
|b 19
700 1 _ |a van Rijnbach, Milou
|b 20
700 1 _ |a Núñez, Marcos Vázquez
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700 1 _ |a Vijay, Anusree
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700 1 _ |a Weick, Julian
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700 1 _ |a Worm, Steven
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773 _ _ |a 10.1016/j.nima.2025.170972
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787 0 _ |a Fasselt, Lucian et.al.
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|r arXiv:2501.13562
|t Charge calibration of MALTA2, a radiation hard depleted monolithic active pixel sensor
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