Published March 1, 2020 | Version v1
Journal article

Test beam characterization of irradiated 3D pixel sensors

  • 1. Instituto de Física de Cantabria (Universidad de Cantabria/CSIC), Av. de los Castros s/n, Santander 39005 (Spain)
  • 2. INFN, Sezione di Firenze, Via Giovanni Sansone, 1, Sesto Fiorentino 50019, Firenze (Italy)
  • 3. INFN, Sezione di Milano-Bicocca, Dipartimento di Fisica G. Occhialini, Università degli Studi di Milano-Bicocca, Edificio U2, Piazza della Scienza, 3, Milano 20126 (Italy)
  • 4. INFN, Sezione di Torino, Via Pietro Giuria, 1, Torino 10125 (Italy)
  • 5. INFN, Sezione di Pavia, Via Agostino Bassi, 6, Pavia 27100 (Italy)
  • 6. INFN, Sezione di Pisa and Università di Pisa, Largo Bruno Fibonacci, 2, Pisa 56127 (Italy)
  • 7. Università degli Studi di Trento, Via Calepina, 14, Trento 38122 (Italy)

Description

Due to the large expected instantaneous luminosity, the future HL-LHC upgrade sets strong requirements on the radiation hardness of the CMS detector Inner Tracker. Sensors based on 3D pixel technology, with its superior radiation tolerance, comply with these extreme conditions. A full study and characterization of pixelated 3D sensors fabricated by FBK is presented here. The sensors were bump-bonded to RD53A readout chips and measured at several CERN SPS test beams. Results on charge collection and efficiency, for both non-irradiated and irradiated up to 10 16 n e q /cm 2 samples, are presented. Two main studies are described: in the first the behaviour of the sensor is qualified as a function of irradiation, while kept under identical conditions; in the second the response is measured under typical operating conditions.

Availability note (English)

Available from http://dx.doi.org/10.1088/1748-0221/15/03/C03017

Additional details

Publishing Information

Journal Title
Journal of Instrumentation
Journal Volume
15
Journal Issue
03
Journal Page Range
p. C03017
ISSN
1748-0221