STI Publications - View Publication Form #15922
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Publication Information
| Title | A simple variable coupler for the cryogenic test of SRF cavities | ||||
| Abstract | The cryogenic rf tests of superconducting radio-frequency (SRF) cavities in vertical cryostats is typically carried out using fixed-length antennae to couple rf pow-er into the cavity and to probe the energy stored into the cavity. Although variable couplers have been designed, built and used in the past, they are often a complex, cost-ly, not very reliable auxiliary component to the cavity test. In this contribution, we present the design and im-plementation of a simple variable rf antenna which has ~50 mm travel, allowing to obtain about four orders of magnitude variation in Qext-value. The motion of the antenna is driven by a motorized linear feedthrough out-side of the cryostat. The antenna can easily be mounted on the most common type of cavity flangesv | ||||
| Author(s) | Gianluigi Ciovati, Larry Turlington | ||||
| Publication Date | November 2019 | ||||
| Document Type | Meeting, Proceedings | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Accelerator Ops, R&D / Inst for SRF Sci & Tech / SRF Research & Dev | ||||
| Funding Source | Nuclear Physics (NP) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Meeting / Conference
| Meeting Name | SRF 2019 (19th International Conference on RF Superconductivity) |
| Meeting Date | 6/30/2019 |
| Document Subtype | Paper (proceedings only) |
Proceedings
| Title | Proceedings of SRF 2019 |
| Editor(s) | Peter Michel, André Arnold, Volker RW Schaa |
| Publisher | JACOW |
| Refereed | No |
| Page Number | 282 |
| Year | 2019 |
Attachments/Datasets/DOI Link
| Document(s) |
JLAB-ACC-19-2959.pdf
(STI Document)
JLAB-ACC-19-2959.docx
(Supporting)
mop084.pdf
(Accepted Manuscript)
|
| DOI Link | |
| Dataset(s) | (none) |
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