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Title: Timing resolution and rate capability of Photonis miniPlanacon XPM85212/A1-S MCP-PMT

Abstract

In this paper we report on a set of experiments that focus on measuring the timing performance of the Photonis miniPlanacon XPM85212/A1-S microchannel plate photomultiplier tubes along with the detector response at high event rates. The detector has a single photoelectron timing resolution of 30 ps at low rates ( 10 kHz ). We show that both the gain and the timing start to deteriorate around 1 MHz with 20 photoelectrons per channel at 1 0 4 target gain, giving the current per unit of area limits of 1.38 μ A / cm 2 and 2.38 μ A / cm 2 for the two tested devices. Photo-multiplier tubes with lower micro-channel plate resistivity exhibit a better rate capability due to the faster replenishment of the charge inside the microchannels. As we demonstrate, another method to improve the rate capability is to operate the photon detector tubes at a lower gain by reducing the supply voltage and compensating for the loss of amplitude by an additional amplification stage at the expense of the achieved timing resolution. The tube active area over which the beam is spread also plays a role since the same amount of light yields a better rate capability when spread over a larger area. The tubes exposed to high event rates showed an uncharacteristically slow recovery back to its initial gain with 80 % of the initial gain recovered only after several tens of minutes.

Authors:
 [1];  [1];  [2];  [2];  [1];  [1];  [1];  [3];  [4]
+ Show Author Affiliations
  1. Palacký Univ., Olomouc (Czech Republic). RCPTM. Joint Lab. of Optics
  2. Univ. of Texas, Arlington, TX (United States)
  3. Stony Brook Univ., NY (United States). Dept. of Physics and Astornomy
  4. Charles Univ., Prague (Czech Republic). Faculty of Mathematics and Physics. Inst. of Particle and Nuclear Physics
Publication Date:
Research Org.:
Univ. of Texas, Arlington, TX (United States)
Sponsoring Org.:
USDOE Office of Science (SC); European Regional Development Fund; Ministry of Education, Youth and Sports of the Czech Republic (MSMT)
OSTI Identifier:
1851512
Alternate Identifier(s):
OSTI ID: 1776935
Grant/Contract Number:  
SC0011686; CZ.02.1.01/0.0/0.0/16_019/0000754; CZ.02.1.01/0.0/0.0/17_049/0008422; LM2018104; LM2015058
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: 985; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; instruments & instrumentation; nuclear science & technology; physics; micro-channel plate photo-multiplier tubes; time-of-flight; fast timing; Cherenkov radiation

Citation Formats

Komárek, T., Urbášek, V., Brandt, A., Chirayath, V. A., Chytka, L., Hrabovský, M., Nožka, L., Rijssenbeek, M., and Sýkora, T. Timing resolution and rate capability of Photonis miniPlanacon XPM85212/A1-S MCP-PMT. United States: N. p., 2020. Web. doi:10.1016/j.nima.2020.164705.
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Komárek, T., Urbášek, V., Brandt, A., Chirayath, V. A., Chytka, L., Hrabovský, M., Nožka, L., Rijssenbeek, M., & Sýkora, T. Timing resolution and rate capability of Photonis miniPlanacon XPM85212/A1-S MCP-PMT. United States. https://doi.org/10.1016/j.nima.2020.164705
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Komárek, T., Urbášek, V., Brandt, A., Chirayath, V. A., Chytka, L., Hrabovský, M., Nožka, L., Rijssenbeek, M., and Sýkora, T. Mon . "Timing resolution and rate capability of Photonis miniPlanacon XPM85212/A1-S MCP-PMT". United States. https://doi.org/10.1016/j.nima.2020.164705. https://www.osti.gov/servlets/purl/1851512.
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@article{osti_1851512,
title = {Timing resolution and rate capability of Photonis miniPlanacon XPM85212/A1-S MCP-PMT},
author = {Komárek, T. and Urbášek, V. and Brandt, A. and Chirayath, V. A. and Chytka, L. and Hrabovský, M. and Nožka, L. and Rijssenbeek, M. and Sýkora, T.},
abstractNote = {In this paper we report on a set of experiments that focus on measuring the timing performance of the Photonis miniPlanacon XPM85212/A1-S microchannel plate photomultiplier tubes along with the detector response at high event rates. The detector has a single photoelectron timing resolution of 30ps at low rates (10kHz). We show that both the gain and the timing start to deteriorate around 1MHz with 20 photoelectrons per channel at 104 target gain, giving the current per unit of area limits of 1.38 μA/cm2 and 2.38 μA/cm2 for the two tested devices. Photo-multiplier tubes with lower micro-channel plate resistivity exhibit a better rate capability due to the faster replenishment of the charge inside the microchannels. As we demonstrate, another method to improve the rate capability is to operate the photon detector tubes at a lower gain by reducing the supply voltage and compensating for the loss of amplitude by an additional amplification stage at the expense of the achieved timing resolution. The tube active area over which the beam is spread also plays a role since the same amount of light yields a better rate capability when spread over a larger area. The tubes exposed to high event rates showed an uncharacteristically slow recovery back to its initial gain with 80% of the initial gain recovered only after several tens of minutes.},
doi = {10.1016/j.nima.2020.164705},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 985,
place = {United States},
year = {Mon Oct 05 00:00:00 EDT 2020},
month = {Mon Oct 05 00:00:00 EDT 2020}
}
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https://doi.org/10.1016/j.nima.2020.164705
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