Liquid argon dielectric breakdown studies with the MicroBooNE purification system
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
The proliferation of liquid argon time projection chamber detectors makes the characterization of the dielectric properties of liquid argon a critical task. To improve understanding of these properties, a systematic study of the breakdown electric field in liquid argon was conducted using a dedicated cryostat connected to the MicroBooNE cryogenic system at Fermilab. An electrode sphere-plate geometry was implemented using spheres with diameters of 1.3 mm, 5.0 mm, and 76 mm. The MicroBooNE cryogenic system allowed measurements to be taken at a variety of electronegative contamination levels ranging from a few parts-per-million to tens of parts-per-trillion. The cathode-anode distance was varied from 0.1 mm to 2.5 cm. The results demonstrate a geometric dependence of the electric field strength at breakdown. This study is the first time that the dependence of the breakdown field on stressed cathode area has been shown for liquid argon.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- MicroBooNE Collaboration
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1296759
- Alternate ID(s):
- OSTI ID: 22358706
- Report Number(s):
- FERMILAB-PUB--14-269-E-PPD; arXiv:1408.0264; oai:inspirehep.net:1309472
- Journal Information:
- Journal of Instrumentation, Journal Name: Journal of Instrumentation Journal Issue: 11 Vol. 9; ISSN 1748-0221
- Publisher:
- Institute of Physics (IOP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
On the electric breakdown in liquid argon at centimeter scale
|
journal | March 2016 |
Design and construction of the MicroBooNE detector
|
journal | February 2017 |
| On the Electric Breakdown in Liquid Argon at Centimeter Scale | text | January 2015 |
Design and Construction of the MicroBooNE Detector
|
text | January 2017 |
Similar Records
A Regenerable Filter for Liquid Argon Purification
Direct comparison of high voltage breakdown measurements in liquid argon and liquid xenon