Ignition and monitoring technique for plasma processing of multicell superconducting radio-frequency cavities
Journal Article
·
· Journal of Applied Physics
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.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1338535
- Alternate ID(s):
- OSTI ID: 1337589
- Journal Information:
- Journal of Applied Physics, Vol. 120, Issue 24; ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 6 works
Citation information provided by
Web of Science
Web of Science
In-situ plasma processing to increase the accelerating gradients of superconducting radio-frequency cavities
|
journal | March 2016 |
Improving the work function of the niobium surface of SRF cavities by plasma processing
|
journal | April 2016 |
The Spallation Neutron Source accelerator system design
|
journal | November 2014 |
Status of the SNS Superconducting Linac and Future Plan
|
journal | March 2008 |
Plasma ignition and detection for in-situ cleaning of 1.3 GHz 9-cell cavities
|
journal | July 2019 |
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