Magnetically-coupled piston pump for high-purity gas applications
Abstract
Experiments based on noble elements such as gaseous or liquid argon or xenon utilize the ionization and scintillation properties of the target materials to detect radiation-induced recoils. A requirement for high light and charge yields is to reduce electronegative impurities well below the ppb (parts per billion, 1 ppb =1×10-9 mol/mol) level. To achieve this, the target material is continuously circulated in the gas phase through a purifier and returned to the detector. Additionally, the low backgrounds necessary dictate low-Rn-emanation rates from all components that contact the gas. Since commercial pumps often introduce electronegative impurities from lubricants on internal components or through small air leaks, and are not designed to meet the radiopurity requirements, custom-built pumps are an advantageous alternative. A new pump has been developed in Muenster in cooperation with the nEXO group at Stanford University and the nEXO/XENON group at Rensselaer Polytechnic Institute based on a magnetically-coupled piston in a hermetically sealed low-Rn-emanating vessel. This pump delivers high performance for noble gases, reaching more than 210 standard liters per minute (slpm) with argon and more than 170 slpm with xenon while maintaining a compression of up to 1.9 bar, demonstrating its capability for noble gas detectors and othermore »
- Authors:
- Publication Date:
- Research Org.:
- Stanford Univ., CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1461923
- Alternate Identifier(s):
- OSTI ID: 1510276
- Grant/Contract Number:
- SC0009841; SC0017970
- Resource Type:
- Published Article
- Journal Name:
- European Physical Journal. C, Particles and Fields
- Additional Journal Information:
- Journal Name: European Physical Journal. C, Particles and Fields Journal Volume: 78 Journal Issue: 7; Journal ID: ISSN 1434-6044
- Publisher:
- Springer
- Country of Publication:
- Germany
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 42 ENGINEERING; 47 OTHER INSTRUMENTATION
Citation Formats
Brown, E., Buss, A., Fieguth, A., Huhmann, C., Murra, M., Ortjohann, H. -W., Rosendahl, S., Schubert, A., Schulte, D., Tosi, D., Gratta, G., and Weinheimer, C. Magnetically-coupled piston pump for high-purity gas applications. Germany: N. p., 2018.
Web. doi:10.1140/epjc/s10052-018-6062-z.
Brown, E., Buss, A., Fieguth, A., Huhmann, C., Murra, M., Ortjohann, H. -W., Rosendahl, S., Schubert, A., Schulte, D., Tosi, D., Gratta, G., & Weinheimer, C. Magnetically-coupled piston pump for high-purity gas applications. Germany. https://doi.org/10.1140/epjc/s10052-018-6062-z
Brown, E., Buss, A., Fieguth, A., Huhmann, C., Murra, M., Ortjohann, H. -W., Rosendahl, S., Schubert, A., Schulte, D., Tosi, D., Gratta, G., and Weinheimer, C. Fri .
"Magnetically-coupled piston pump for high-purity gas applications". Germany. https://doi.org/10.1140/epjc/s10052-018-6062-z.
@article{osti_1461923,
title = {Magnetically-coupled piston pump for high-purity gas applications},
author = {Brown, E. and Buss, A. and Fieguth, A. and Huhmann, C. and Murra, M. and Ortjohann, H. -W. and Rosendahl, S. and Schubert, A. and Schulte, D. and Tosi, D. and Gratta, G. and Weinheimer, C.},
abstractNote = {Experiments based on noble elements such as gaseous or liquid argon or xenon utilize the ionization and scintillation properties of the target materials to detect radiation-induced recoils. A requirement for high light and charge yields is to reduce electronegative impurities well below the ppb (parts per billion, 1 ppb =1×10-9 mol/mol) level. To achieve this, the target material is continuously circulated in the gas phase through a purifier and returned to the detector. Additionally, the low backgrounds necessary dictate low-Rn-emanation rates from all components that contact the gas. Since commercial pumps often introduce electronegative impurities from lubricants on internal components or through small air leaks, and are not designed to meet the radiopurity requirements, custom-built pumps are an advantageous alternative. A new pump has been developed in Muenster in cooperation with the nEXO group at Stanford University and the nEXO/XENON group at Rensselaer Polytechnic Institute based on a magnetically-coupled piston in a hermetically sealed low-Rn-emanating vessel. This pump delivers high performance for noble gases, reaching more than 210 standard liters per minute (slpm) with argon and more than 170 slpm with xenon while maintaining a compression of up to 1.9 bar, demonstrating its capability for noble gas detectors and other applications requiring high standards of gas purity.},
doi = {10.1140/epjc/s10052-018-6062-z},
journal = {European Physical Journal. C, Particles and Fields},
number = 7,
volume = 78,
place = {Germany},
year = {2018},
month = {7}
}
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https://doi.org/10.1140/epjc/s10052-018-6062-z
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