Electron Attenuation Measurement using Cosmic Ray Muons at the MicroBooNE LArTPC
- Kansas State U., Manhattan
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.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- MicroBooNE
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1413738
- Report Number(s):
- arXiv:1710.00396; FERMILAB-CONF-17-517-E; 1628097
- 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
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