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To cope with the challenging environment of the planned high luminosity upgrade of the Large Hadron Collider (HL-LHC), scheduled to start operation in 2029, CMS will replace its entire tracking system. The requirements for the tracker are largely determined by the long operation time of 10 years with an instantaneous peak luminosity of up to 7.5 1034 cm−2 s−1 in the ultimate performance scenario. Depending on the radial distance from the interaction point, the silicon sensors will receive a particle fluence corresponding to a non-ionising energy loss of up to 3.5 1016 cm−2. This paper focuses on planar pixel sensor design and qualification up to a fluence of = 1.4 1016 cm−2. For the development of appropriate planar pixel sensors an R&D program was initiated, which includes sensors on 150 mm (6”) wafers with an active thickness of 150 µm with pixel sizes of 100 25 µm2 and 50 50 µm2 manufactured by Hamamatsu Photonics K.K. (HPK). Single chip modules with ROC4Sens and RD53A readout chips were made. Irradiation with protons and neutrons, as well was an extensive test beam campaign at DESY were carried out. This paper presents the investigation of various assemblies mainly with ROC4Sens readout chips. It demonstrates that multiple designs fulfil the requirements in terms of breakdown voltage, leakage current and efficiency. The single point resolution for 50
50 µm2 pixels is measured as 4.0 µm for non-irradiated samples, and 6.3 µm after irradiation to
= 7.2 1015 cm−2.
(2023). Evaluation of HPK n+-p planar pixel sensors for the CMS Phase-2 upgrade [journal article - articolo]. In NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. Retrieved from https://hdl.handle.net/10446/263409
Evaluation of HPK n+-p planar pixel sensors for the CMS Phase-2 upgrade
To cope with the challenging environment of the planned high luminosity upgrade of the Large Hadron Collider (HL-LHC), scheduled to start operation in 2029, CMS will replace its entire tracking system. The requirements for the tracker are largely determined by the long operation time of 10 years with an instantaneous peak luminosity of up to 7.5 1034 cm−2 s−1 in the ultimate performance scenario. Depending on the radial distance from the interaction point, the silicon sensors will receive a particle fluence corresponding to a non-ionising energy loss of up to 3.5 1016 cm−2. This paper focuses on planar pixel sensor design and qualification up to a fluence of = 1.4 1016 cm−2. For the development of appropriate planar pixel sensors an R&D program was initiated, which includes sensors on 150 mm (6”) wafers with an active thickness of 150 µm with pixel sizes of 100 25 µm2 and 50 50 µm2 manufactured by Hamamatsu Photonics K.K. (HPK). Single chip modules with ROC4Sens and RD53A readout chips were made. Irradiation with protons and neutrons, as well was an extensive test beam campaign at DESY were carried out. This paper presents the investigation of various assemblies mainly with ROC4Sens readout chips. It demonstrates that multiple designs fulfil the requirements in terms of breakdown voltage, leakage current and efficiency. The single point resolution for 50
50 µm2 pixels is measured as 4.0 µm for non-irradiated samples, and 6.3 µm after irradiation to
= 7.2 1015 cm−2.
Bergauer T., Adam W.; Damanakis, K.; Dragicevic, M.; Frühwirth, R.; Steininger, H.; Beaumont, W.; Darwish, M. R.; Janssen, T.; Kello, T.; Sfar, H. R.;...espandi
(2023). Evaluation of HPK n+-p planar pixel sensors for the CMS Phase-2 upgrade [journal article - articolo]. In NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. Retrieved from https://hdl.handle.net/10446/263409
Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/263409
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simulazione ASN
Il report seguente simula gli indicatori relativi alla propria produzione scientifica in relazione alle soglie ASN 2023-2025 del proprio SC/SSD. Si ricorda che il superamento dei valori soglia (almeno 2 su 3) è requisito necessario ma non sufficiente al conseguimento dell'abilitazione. La simulazione si basa sui dati IRIS e sugli indicatori bibliometrici alla data indicata e non tiene conto di eventuali periodi di congedo obbligatorio, che in sede di domanda ASN danno diritto a incrementi percentuali dei valori. La simulazione può differire dall'esito di un’eventuale domanda ASN sia per errori di catalogazione e/o dati mancanti in IRIS, sia per la variabilità dei dati bibliometrici nel tempo. Si consideri che Anvur calcola i valori degli indicatori all'ultima data utile per la presentazione delle domande.
La presente simulazione è stata realizzata sulla base delle specifiche raccolte sul tavolo ER del Focus Group IRIS coordinato dall’Università di Modena e Reggio Emilia e delle regole riportate nel DM 589/2018 e allegata Tabella A. Cineca, l’Università di Modena e Reggio Emilia e il Focus Group IRIS non si assumono alcuna responsabilità in merito all’uso che il diretto interessato o terzi faranno della simulazione. Si specifica inoltre che la simulazione contiene calcoli effettuati con dati e algoritmi di pubblico dominio e deve quindi essere considerata come un mero ausilio al calcolo svolgibile manualmente o con strumenti equivalenti.