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Title: Electron Attenuation Measurement using Cosmic Ray Muons at the MicroBooNE LArTPC

Abstract

The MicroBooNE experiment at Fermilab uses liquid argon time projection chamber (LArTPC) technology to study neutrino interactions in argon. A fundamental requirement for LArTPCs is to achieve and maintain a low level of electronegative contaminants in the liquid to minimize the capture of drifting ionization electrons. The attenuation time for the drifting electrons should be long compared to the maximum drift time, so that the signals from particle tracks that generate ionization electrons with long drift paths can be detected efficiently. In this talk we present MicroBooNE measurement of electron attenuation using cosmic ray muons. The result yields a minimum electron 1/e lifetime of 18 ms under typical operating conditions, which is long compared to the maximum drift time of 2.3 ms.

Authors:
 [1]
  1. Kansas State U., Manhattan
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
MicroBooNE
OSTI Identifier:
1413738
Report Number(s):
arXiv:1710.00396; FERMILAB-CONF-17-517-E
1628097
DOE Contract Number:
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: Meeting of the APS Division of Particles and Fields, Batavia, Illinois, USA, 07/31-08/04/2017
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Meddage, Varuna. Electron Attenuation Measurement using Cosmic Ray Muons at the MicroBooNE LArTPC. United States: N. p., 2017. Web.
Meddage, Varuna. Electron Attenuation Measurement using Cosmic Ray Muons at the MicroBooNE LArTPC. United States.
Meddage, Varuna. Sun . "Electron Attenuation Measurement using Cosmic Ray Muons at the MicroBooNE LArTPC". United States. doi:. https://www.osti.gov/servlets/purl/1413738.
@article{osti_1413738,
title = {Electron Attenuation Measurement using Cosmic Ray Muons at the MicroBooNE LArTPC},
author = {Meddage, Varuna},
abstractNote = {The MicroBooNE experiment at Fermilab uses liquid argon time projection chamber (LArTPC) technology to study neutrino interactions in argon. A fundamental requirement for LArTPCs is to achieve and maintain a low level of electronegative contaminants in the liquid to minimize the capture of drifting ionization electrons. The attenuation time for the drifting electrons should be long compared to the maximum drift time, so that the signals from particle tracks that generate ionization electrons with long drift paths can be detected efficiently. In this talk we present MicroBooNE measurement of electron attenuation using cosmic ray muons. The result yields a minimum electron 1/e lifetime of 18 ms under typical operating conditions, which is long compared to the maximum drift time of 2.3 ms.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Oct 01 00:00:00 EDT 2017},
month = {Sun Oct 01 00:00:00 EDT 2017}
}

Conference:
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