Electrical characterization of surface properties of the ATLAS17LS sensors after neutron, proton and gamma irradiation

0535635 - FZÚ 2021 RIV NL eng J - Článek v odborném periodiku
Mikeštíková, Marcela - Kroll, Jiří - Abidi, S. H. - Affolder, A. - Allport, P. - Basso, M. J. - Bloch, I. - Casha, A. - Cindro, V. - Ciungu, B. M. - Dette, K. - Dey, S. - Doležal, Z. - Dudas, D. - Fadeyev, V. - Fernandez-Tejero, J. - Fleta, C. - Gonella, L. - Gillberg, D. - Gunnell, J. - Hara, K. - Helling, C. - Hommels, B. - Hunter, A. - Hunter, R. - Keller, J. - Kisliuk, D. - Klein, C. - Kodys, P. - Koffas, T. - Kotek, Zdeněk - Kvasnička, Jiří - Latoňová, Věra - Mandic, I. - Marčišovský, Michal - Martinez-Mckinney, F. - Nicolini, J. - Onaru, K. - Orr, R. S. - Peterková, K. - Poley, L. - Pyatt, S. - Rossi, E. - Sato, K. - Scharf, C. - Sharma, S. - Staats, E. - Šťastný, Jan - Thomas, J. - Ullan, M. - Unno, Y. - Wada, S. - Zahradník, Vít - Zatočilová, Iveta
Electrical characterization of surface properties of the ATLAS17LS sensors after neutron, proton and gamma irradiation.
Nuclear Instruments & Methods in Physics Research Section A. Roč. 983, Dec (2020), s. 1-7, č. článku 164456. ISSN 0168-9002. E-ISSN 1872-9576
Grant CEP: GA MŠMT(CZ) LTT17018; GA MŠMT(CZ) LM2018104
GRANT EU: European Commission(XE) 654168 - AIDA-2020
Institucionální podpora: RVO:68378271
Klíčová slova: HL-LHC * ATLAS ITk * micro-strip sensor * radiation resistance * surface properties * inter-strip resistance
Obor OECD: Particles and field physics
Impakt faktor: 1.455, rok: 2020
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.nima.2020.164456

The high luminosity upgrade of the Large Hadron Collider, foreseen for 2027, requires the replacement of the ATLAS Inner Detector with a new all-silicon Inner Tracker (ITk). The expected total integrated luminosity of 4000 fb-1 means that the strip part of the ITk detector will be exposed to a large radiation fluence of up to Φeq = 1.6×1015 1 MeV neq/cm and an ionizing dose of 0.66 MGy, including a safety factor of 1.5. Radiation-hard n+-in-p micro-strip sensors for use in the ITk have been developed by the ATLAS ITk Strip Sensor collaboration and produced by Hamamatsu Photonics K.K. In this paper, the results obtained from the electrical characterization of the latest barrel ATLAS17LS sensor prototype, before and after irradiation, are shown. Surface properties of the long-strip barrel, full-sized and miniature sensors have been studied before and after proton, neutron and gamma irradiation up to the maximal fluences and radiation doses specified for theITk Strip tracker. Sensors have been irradiated by protons at CYRIC, Tohoku University (Japan), the ProtonIrradiation Facility at CERN, Karlsruhe Inst. Tech. (Germany) and at the University of Birmingham (UK), by neutrons from the Ljubljana TRIGA reactor (Slovenia) and by gamma rays from the 60Co source in UJP Praha(Czech Republic). It has been verified that the surface radiation damage does not influence the sensor functionality. The breakdown voltage is well above the maximum operational voltage. All the tested surface parameters, such as the inter-strip resistance and capacitance, coupling capacitance and bias resistance satisfy the ATLAS ITk specifications for strip sensors.
Trvalý link: http://hdl.handle.net/11104/0313598