Ignition and monitoring technique for plasma processing of multicell superconducting radio-frequency cavities
Abstract
In this study, an in-situ plasma processing technique has been developed at the Spallation Neutron Source (SNS) to improve the performance of the superconducting radio-frequency (SRF) cavities in operation. The technique uses a low-density reactive neon-oxygen plasma at room-temperature to improve the surface work function, to help remove adsorbed gases on the RF surface and to reduce its secondary emission yield. SNS SRF cavities are six-cell elliptical cavities and the plasma typically ignites in the cell where the electric field is the highest. This article will detail a technique that was developed to ignite and monitor the plasma in each cell of the SNS cavities.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1338535
- Alternate Identifier(s):
- OSTI ID: 1337589
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Applied Physics
- Additional Journal Information:
- Journal Volume: 120; Journal Issue: 24; Journal ID: ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Plasma processes; Radiofrequency discharges; Superconductivity; Particle accelerators
Citation Formats
Doleans, Marc. Ignition and monitoring technique for plasma processing of multicell superconducting radio-frequency cavities. United States: N. p., 2016.
Web. doi:10.1063/1.4972838.
Doleans, Marc. Ignition and monitoring technique for plasma processing of multicell superconducting radio-frequency cavities. United States. https://doi.org/10.1063/1.4972838
Doleans, Marc. Tue .
"Ignition and monitoring technique for plasma processing of multicell superconducting radio-frequency cavities". United States. https://doi.org/10.1063/1.4972838. https://www.osti.gov/servlets/purl/1338535.
@article{osti_1338535,
title = {Ignition and monitoring technique for plasma processing of multicell superconducting radio-frequency cavities},
author = {Doleans, Marc},
abstractNote = {In this study, an in-situ plasma processing technique has been developed at the Spallation Neutron Source (SNS) to improve the performance of the superconducting radio-frequency (SRF) cavities in operation. The technique uses a low-density reactive neon-oxygen plasma at room-temperature to improve the surface work function, to help remove adsorbed gases on the RF surface and to reduce its secondary emission yield. SNS SRF cavities are six-cell elliptical cavities and the plasma typically ignites in the cell where the electric field is the highest. This article will detail a technique that was developed to ignite and monitor the plasma in each cell of the SNS cavities.},
doi = {10.1063/1.4972838},
journal = {Journal of Applied Physics},
number = 24,
volume = 120,
place = {United States},
year = {Tue Dec 27 00:00:00 EST 2016},
month = {Tue Dec 27 00:00:00 EST 2016}
}
Web of Science
Works referenced in this record:
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journal, March 2016
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Works referencing / citing this record:
Plasma ignition and detection for in-situ cleaning of 1.3 GHz 9-cell cavities
journal, July 2019
- Berrutti, P.; Giaccone, B.; Martinello, M.
- Journal of Applied Physics, Vol. 126, Issue 2