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| WEPWI015 |
BNL 56 MHz HOM Damper Prototype Fabrication at JLab |
3521 |
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- N.A. Huque, W.A. Clemens, E. Daly
JLab, Newport News, Virginia, USA
- S. Bellavia, G.T. McIntyre, S.K. Seberg, Q. Wu
BNL, Upton, Long Island, New York, USA
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A prototype Higher-Order Mode (HOM) Damper was fabricated at JLab for the Relativistic Heavy-Ion Collider’s (RHIC) 56 MHz cavity at Brookhaven National Laboratory (BNL). Primarily constructed from high RRR Niobium and Sapphire, the coaxial damper presented significant challenges in electron-beam welding (EBW), brazing and machining via acid etching. The results of the prototype operation brought about changes in the damper design, due to overheating braze alloys and possible multi-pacting. Five production HOM dampers are currently being fabricated at JLab. This paper outlines the challenges faced in the fabrication process, and the solutions put in place.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2015-WEPWI015
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