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Measurement of the longitudinal diffusion of ionization electrons in the MicroBooNE detector
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(2021) Measurement of the longitudinal diffusion of ionization electrons in the MicroBooNE detector. Journal of Instrumentation, 16 (09). P09025. doi:10.1088/1748-0221/16/09/p09025 ISSN 1748-0221.
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Official URL: https://doi.org/10.1088/1748-0221/16/09/P09025
Abstract
Accurate knowledge of electron transport properties is vital to understanding the information provided by liquid argon time projection chambers (LArTPCs). Ionization electron drift-lifetime, local electric field distortions caused by positive ion accumulation, and electron diffusion can all significantly impact the measured signal waveforms. This paper presents a measurement of the effective longitudinal electron diffusion coefficient, DL, in MicroBooNE at the nominal electric field strength of 273.9 V/cm. Historically, this measurement has been made in LArTPC prototype detectors. This represents the first measurement in a large-scale (85 tonne active volume) LArTPC operating in a neutrino beam. This is the largest dataset ever used for this measurement. Using a sample of ∼70,000 through-going cosmic ray muon tracks tagged with MicroBooNE's cosmic ray tagger system, we measure DL = 3.74+0.28 -0.29 cm2/s.
Item Type: | Journal Article | |||||||||||||||||||||
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Subjects: | Q Science > QC Physics | |||||||||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||||||||
SWORD Depositor: | Library Publications Router | |||||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Ionizing radiation -- Measurement, Time projection chambers (Nuclear physics), Nuclear counters | |||||||||||||||||||||
Journal or Publication Title: | Journal of Instrumentation | |||||||||||||||||||||
Publisher: | IOP Publishing | |||||||||||||||||||||
ISSN: | 1748-0221 | |||||||||||||||||||||
Official Date: | 22 September 2021 | |||||||||||||||||||||
Dates: |
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Volume: | 16 | |||||||||||||||||||||
Number: | 09 | |||||||||||||||||||||
Article Number: | P09025 | |||||||||||||||||||||
DOI: | 10.1088/1748-0221/16/09/p09025 | |||||||||||||||||||||
Status: | Peer Reviewed | |||||||||||||||||||||
Publication Status: | Published | |||||||||||||||||||||
Re-use Statement: | ** From IOP Publishing via Jisc Publications Router ** History: received 15-04-2021; accepted 05-07-2021; ppub 09-2021; open-access 22-09-2021; epub 22-09-2021. ** Licence for this article: http://creativecommons.org/licenses/by/4.0/ | |||||||||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||||||||
Date of first compliant deposit: | 2 November 2021 | |||||||||||||||||||||
Date of first compliant Open Access: | 2 November 2021 | |||||||||||||||||||||
RIOXX Funder/Project Grant: |
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