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Title: Performance of thin planar n-on-p silicon pixels after HL-LHC radiation fluences

Abstract

The tracking detector of ATLAS, one of the experiments at the Large Hadron Collider (LHC), will be upgraded in 2024–2026 to cope with the challenging environment conditions of the High Luminosity LHC (HL-LHC). The LPNHE, in collaboration with FBK and INFN, has produced 130 μm thick n-on-p silicon pixel sensors which can withstand the expected large particle fluences at HL-LHC, while delivering data at high rate with excellent hit efficiency. Such sensors were tested in beam before and after irradiation both at CERN-SPS and at DESY, and their performance are presented in this paper. Here, beam test data indicate that these detectors are suited for all the layers where planar sensors are foreseen in the future ATLAS tracker: hit-efficiency is greater than 97% for fluences of Φ≲7x10 15 n eq/cm 2 and module power consumption is within the specified limits. Additionally, at a fluence of Φ=1.3x10 16 n eq /cm 2, hit-efficiency is still as high as 88% and charge collection efficiency is about 30%.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3];  [4];  [5];  [6];  [7];  [8];  [2];  [2]
  1. Paris-Sorbonne Univ., Paris (France). CNRS National Institute of Nuclear and Particle Physics (IN2P3)
  2. Fondazione Bruno Kessler Center for Materials and Microsystems (FBK-CMM), Povo di Trento (Italy); Trento Inst. for Fundamental Physics and Applications (TIFPA INFN), Trento (Italy)
  3. Italian National Inst. of Nuclear Physics (INFN), Trieste (Italy)
  4. Italian National Inst. of Nuclear Physics (INFN), Genova (Italy)
  5. Trento Inst. for Fundamental Physics and Applications (TIFPA INFN), Trento (Italy); Univ. of Trento, Trento (Italy)
  6. Brookhaven National Laboratory (BNL), Upton, NY (United States)
  7. Italian National Inst. of Nuclear Physics (INFN), Firenze (Italy)
  8. Univ. of Pisa, Pisa (Italy). Italian National Inst. of Nuclear Physics (INFN)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1507109
Report Number(s):
BNL-211542-2019-JAAM
Journal ID: ISSN 0168-9002
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 927; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Silicon radiation detectors; LHC; HL-LHC; Radiation hardness

Citation Formats

Ducourthial, A., Bomben, M., Calderini, G., Camacho, R., D’Eramo, L., Luise, I., Marchiori, G., Boscardin, M., Bosisio, L., Darbo, G., Dalla Betta, G. -F., Giacomini, G., Meschini, M., Messineo, A., Ronchin, S., and Zorzi, N.. Performance of thin planar n-on-p silicon pixels after HL-LHC radiation fluences. United States: N. p., 2019. Web. doi:10.1016/j.nima.2019.02.033.
Ducourthial, A., Bomben, M., Calderini, G., Camacho, R., D’Eramo, L., Luise, I., Marchiori, G., Boscardin, M., Bosisio, L., Darbo, G., Dalla Betta, G. -F., Giacomini, G., Meschini, M., Messineo, A., Ronchin, S., & Zorzi, N.. Performance of thin planar n-on-p silicon pixels after HL-LHC radiation fluences. United States. doi:10.1016/j.nima.2019.02.033.
Ducourthial, A., Bomben, M., Calderini, G., Camacho, R., D’Eramo, L., Luise, I., Marchiori, G., Boscardin, M., Bosisio, L., Darbo, G., Dalla Betta, G. -F., Giacomini, G., Meschini, M., Messineo, A., Ronchin, S., and Zorzi, N.. Sun . "Performance of thin planar n-on-p silicon pixels after HL-LHC radiation fluences". United States. doi:10.1016/j.nima.2019.02.033.
@article{osti_1507109,
title = {Performance of thin planar n-on-p silicon pixels after HL-LHC radiation fluences},
author = {Ducourthial, A. and Bomben, M. and Calderini, G. and Camacho, R. and D’Eramo, L. and Luise, I. and Marchiori, G. and Boscardin, M. and Bosisio, L. and Darbo, G. and Dalla Betta, G. -F. and Giacomini, G. and Meschini, M. and Messineo, A. and Ronchin, S. and Zorzi, N.},
abstractNote = {The tracking detector of ATLAS, one of the experiments at the Large Hadron Collider (LHC), will be upgraded in 2024–2026 to cope with the challenging environment conditions of the High Luminosity LHC (HL-LHC). The LPNHE, in collaboration with FBK and INFN, has produced 130 μm thick n-on-p silicon pixel sensors which can withstand the expected large particle fluences at HL-LHC, while delivering data at high rate with excellent hit efficiency. Such sensors were tested in beam before and after irradiation both at CERN-SPS and at DESY, and their performance are presented in this paper. Here, beam test data indicate that these detectors are suited for all the layers where planar sensors are foreseen in the future ATLAS tracker: hit-efficiency is greater than 97% for fluences of Φ≲7x1015 neq/cm2 and module power consumption is within the specified limits. Additionally, at a fluence of Φ=1.3x1016 neq /cm2, hit-efficiency is still as high as 88% and charge collection efficiency is about 30%.},
doi = {10.1016/j.nima.2019.02.033},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 927,
place = {United States},
year = {2019},
month = {2}
}

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This content will become publicly available on February 17, 2020
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