| Title |
Design Enhancements for the SNS RFQ Coaxial Coupler |
| Authors |
- G.D. Toby, C.N. Barbier, Y.W. Kang, S.W. Lee, J.S. Moss
ORNL, Oak Ridge, Tennessee, USA
- A.H. Narayan
ORNL RAD, Oak Ridge, Tennessee, USA
|
| Abstract |
The H⁻ ion linear accelerator at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory operates with reliability that routinely surpasses 90% during scheduled beam operation. With the ambitious goal of eventually achieving at least 95% availability, several upgrade and improvement projects are ongoing. One such project is the modification of the coaxial couplers that transfer radio frequency (RF) power to the accelerator’s Radio Frequency Quadrupole (RFQ). The proposed modification utilizes stub sections and capacitive coupling to construct a physically separable assembly with DC isolation. With a separated coupler assembly, the section that includes the magnetic coupling loop can be permanently mounted to the RFQ which would eliminate the need to re-adjust the couplers after maintenance activities, upgrades, and repairs. Additionally, the modified design would provide increased multipaction suppression with DC biasing and potentially lower thermal gradients across the device. This paper presents the design and simulation results of the project.
|
| Funding |
ORNL is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the U.S. Department of Energy. This research was supported by the DOE Office of Science, Basic Energy Science. |
| Paper |
download TUPOPA29.PDF [0.717 MB / 4 pages] |
| Cite |
download ※ BibTeX
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※ EndNote |
| Conference |
LINAC2022 |
| Series |
International Linear Accelerator Conference (31st) |
| Location |
Liverpool, UK |
| Date |
28 August-02 September 2022 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Peter McIntosh (STFC DL, Daresbury, UK); Graeme Burt (Lancaster Univ., Lancaster, UK); Robert Apsimon (Lancaster Univ., Lancaster, UK); Volker R.W. Schaa (GSI, Darmstadt, Germany) |
| Online ISBN |
978-3-95450-215-8 |
| Online ISSN |
2226-0366 |
| Received |
23 August 2022 |
| Revised |
29 August 2022 |
| Accepted |
30 August 2022 |
| Issue Date |
01 September 2022 |
| DOI |
doi:10.18429/JACoW-LINAC2022-TUPOPA29 |
| Pages |
469-472 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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