The FNAL Booster 2nd Harmonic RF Cavity
R. Madrak, J. Dey, K. Duel, M. Kufer, J. Kuharik, A. Makarov, R., Padilla, W. Pellico, J. Reid, G. Romanov, M. Slabaugh, D. Sun, C.Y. Tan, I., Terechkine (Fermilab)
TL;DR
This paper discusses the design, construction, and testing of a second harmonic RF cavity using garnet tuning for Fermilab's Booster to reduce beam loss during injection and extraction.
Contribution
It presents the finalized design and construction status of a novel garnet-tuned second harmonic RF cavity for Fermilab's Booster.
Findings
Cavity design has been finalized after three years of optimization.
All constituent parts have been received and tested.
The cavity is intended to operate at 76-106 MHz during specific beam phases.
Abstract
A second harmonic RF cavity which uses perpendicularly biased garnet for frequency tuning is currently being constructed for use in the Fermilab Booster. The cavity will operate at twice the fundamental RF frequency, from ~76 - 106 MHz, and will be turned on only during injection, and transition or extraction. Its main purpose is to reduce beam loss as required by Fermilab's Proton Improvement Plan (PIP). After three years of optimization and study, the cavity design has been finalized and all constituent parts have been received. We discuss the design aspects of the cavity and its associated systems, component testing, and status of the cavity construction.
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Taxonomy
TopicsParticle accelerators and beam dynamics · Gyrotron and Vacuum Electronics Research · Particle Accelerators and Free-Electron Lasers