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Title: Studies of uniformity of 50  μ m low-gain avalanche detectors at the Fermilab test beam

In this study, we report measurements of the uniformity of time resolution, signal amplitude, and charged particle detection efficiency across the sensor surface of low-gain avalanche detectors (LGAD). Comparisons of the performance of sensors with different doping concentrations and different active thicknesses are presented, as well as their temperature dependence and radiation tolerance up to 6 x 10 14 n/cm 2. Results were obtained at the Fermilab test beam facility using 120 GeV proton beams, and a high precision pixel tracking detector. LGAD sensors manufactured by the Centro Nacional de Microelectrónica (CNM) and Hamamatsu Photonics (HPK) were studied. The uniformity of the sensor response in pulse height before irradiation was found to have a 2% spread. The signal detection efficiency and timing resolution in the sensitive areas before irradiation were found to be 100% and 30–40 ps, respectively. A “no-response” area between pads was measured to be about 130 μm for CNM and 170μm for HPK sensors. After a neutron fluence of 6 x 10 14 n/cm 2 the CNM sensor exhibits a large gain variation of up to a factor of 2.5 when comparing metalized and non-metalized sensor areas. An irradiated CNM sensor achieved a time resolution of 30more » ps for the metalized area and 40 ps for the non-metalized area, while a HPK sensor irradiated to the same fluence achieved a 30 ps time resolution.« less
Authors:
 [1] ;  [2] ;  [2] ;  [3] ;  [4] ;  [5] ;  [1] ;  [4] ;  [5] ;  [6] ;  [6] ;  [7] ;  [8] ;  [1] ;  [5] ;  [7] ;  [1] ;  [4] ;  [5] ;  [8] more »;  [5] ;  [5] ;  [1] ;  [8] ;  [6] ;  [6] ;  [4] ;  [2] ;  [4] ;  [1] ;  [7] ;  [7] « less
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  2. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  3. INFN, Torino (Italy); Univ. del Piemonte Orientale (Italy)
  4. INFN, Torino (Italy)
  5. Centro Nacional de Microelectronica (IMB-CNM-CSIC), Barcelona (Spain)
  6. Univ. of California, Santa Cruz, CA (United States)
  7. Hamamatsu Photonics (HPK), Hamamatsu (Japan)
  8. Univ. of Kansas, Lawrence, KS (United States)
Publication Date:
Report Number(s):
FERMILAB-PUB-18-299-PPD
Journal ID: ISSN 0168-9002; 1679871
Grant/Contract Number:
AC02-07CH11359
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: 895; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Silicon; Timing; LGAD; Test beam
OSTI Identifier:
1457537

Apresyan, A., Xie, S., Pena, C., Arcidiacono, R., Cartiglia, N., Carulla, M., Derylo, G., Ferrero, M., Flores, D., Freeman, P., Galloway, Z., Ghassemi, A., Al Ghoul, H., Gray, L., Hidalgo, S., Kamada, S., Los, S., Mandurrino, M., Merlos, A., Minafra, N., Pellegrini, G., Quirion, D., Ronzhin, A., Royon, C., Sadrozinski, H., Seiden, A., Sola, V., Spiropulu, M., Staiano, A., Uplegger, L., Yamamoto, K., and Yamamura, K.. Studies of uniformity of 50  μm low-gain avalanche detectors at the Fermilab test beam. United States: N. p., Web. doi:10.1016/j.nima.2018.03.074.
Apresyan, A., Xie, S., Pena, C., Arcidiacono, R., Cartiglia, N., Carulla, M., Derylo, G., Ferrero, M., Flores, D., Freeman, P., Galloway, Z., Ghassemi, A., Al Ghoul, H., Gray, L., Hidalgo, S., Kamada, S., Los, S., Mandurrino, M., Merlos, A., Minafra, N., Pellegrini, G., Quirion, D., Ronzhin, A., Royon, C., Sadrozinski, H., Seiden, A., Sola, V., Spiropulu, M., Staiano, A., Uplegger, L., Yamamoto, K., & Yamamura, K.. Studies of uniformity of 50  μm low-gain avalanche detectors at the Fermilab test beam. United States. doi:10.1016/j.nima.2018.03.074.
Apresyan, A., Xie, S., Pena, C., Arcidiacono, R., Cartiglia, N., Carulla, M., Derylo, G., Ferrero, M., Flores, D., Freeman, P., Galloway, Z., Ghassemi, A., Al Ghoul, H., Gray, L., Hidalgo, S., Kamada, S., Los, S., Mandurrino, M., Merlos, A., Minafra, N., Pellegrini, G., Quirion, D., Ronzhin, A., Royon, C., Sadrozinski, H., Seiden, A., Sola, V., Spiropulu, M., Staiano, A., Uplegger, L., Yamamoto, K., and Yamamura, K.. 2018. "Studies of uniformity of 50  μm low-gain avalanche detectors at the Fermilab test beam". United States. doi:10.1016/j.nima.2018.03.074. https://www.osti.gov/servlets/purl/1457537.
@article{osti_1457537,
title = {Studies of uniformity of 50  μm low-gain avalanche detectors at the Fermilab test beam},
author = {Apresyan, A. and Xie, S. and Pena, C. and Arcidiacono, R. and Cartiglia, N. and Carulla, M. and Derylo, G. and Ferrero, M. and Flores, D. and Freeman, P. and Galloway, Z. and Ghassemi, A. and Al Ghoul, H. and Gray, L. and Hidalgo, S. and Kamada, S. and Los, S. and Mandurrino, M. and Merlos, A. and Minafra, N. and Pellegrini, G. and Quirion, D. and Ronzhin, A. and Royon, C. and Sadrozinski, H. and Seiden, A. and Sola, V. and Spiropulu, M. and Staiano, A. and Uplegger, L. and Yamamoto, K. and Yamamura, K.},
abstractNote = {In this study, we report measurements of the uniformity of time resolution, signal amplitude, and charged particle detection efficiency across the sensor surface of low-gain avalanche detectors (LGAD). Comparisons of the performance of sensors with different doping concentrations and different active thicknesses are presented, as well as their temperature dependence and radiation tolerance up to 6 x 1014 n/cm2. Results were obtained at the Fermilab test beam facility using 120 GeV proton beams, and a high precision pixel tracking detector. LGAD sensors manufactured by the Centro Nacional de Microelectrónica (CNM) and Hamamatsu Photonics (HPK) were studied. The uniformity of the sensor response in pulse height before irradiation was found to have a 2% spread. The signal detection efficiency and timing resolution in the sensitive areas before irradiation were found to be 100% and 30–40 ps, respectively. A “no-response” area between pads was measured to be about 130 μm for CNM and 170μm for HPK sensors. After a neutron fluence of 6 x 1014 n/cm2 the CNM sensor exhibits a large gain variation of up to a factor of 2.5 when comparing metalized and non-metalized sensor areas. An irradiated CNM sensor achieved a time resolution of 30 ps for the metalized area and 40 ps for the non-metalized area, while a HPK sensor irradiated to the same fluence achieved a 30 ps time resolution.},
doi = {10.1016/j.nima.2018.03.074},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 895,
place = {United States},
year = {2018},
month = {4}
}