Results on proton-irradiated 3D pixel sensors interconnected to RD53A readout ASIC
Abstract
Test beam results obtained with 3D pixel sensors bump-bonded to the RD53A prototype readout ASIC are reported. Sensors from FBK Italy and IMB-CNM (Spain) have been tested before and after proton-irradiation to an equivalent fluence of about 1 × 1016 ≠cm-2 (1 MeV equivalent neutrons). This is the first time that one single collecting electrode fine pitch 3D sensors are irradiated up to such fluence bump-bonded to a fine pitch ASIC. The preliminary analysis of the collected data shows no degradation on the hit detection efficiencies of the tested sensors after high energy proton irradiation, demonstrating the excellent radiation tolerance of the 3D pixel sensors. Thus, they will be excellent candidates for the extreme radiation environment at the innermost layers of the HL-LHC experiments.
- Publication:
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Nuclear Instruments and Methods in Physics Research A
- Pub Date:
- November 2019
- DOI:
- 10.1016/j.nima.2019.162625
- arXiv:
- arXiv:1903.12531
- Bibcode:
- 2019NIMPA.94462625D
- Keywords:
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- Performance of high energy physics detectors;
- Pixelated detectors and associated VLSI electronics;
- Radiation-hard electronics;
- Radiation damage to detector materials (solid state);
- Radiation-hard detectors;
- Physics - Instrumentation and Detectors
- E-Print:
- Conference Proceedings of VCI2019, 15th Vienna Conference of Instrumentation, February 18-22, 2019, Vienna, Austria. arXiv admin note: text overlap with arXiv:1903.01963