Progress on the design of a perpendicularly biased 2nd harmonic cavity for the Fermilab Booster
R.L. Madrak, J.E. Dey, K.L. Duel, J.C. Kuharik, W.A. Pellico, J.S., Reid, G. Romanov, M. Slabaugh, D. Sun, C.Y. Tan, I. Terechkine (Fermilab)
TL;DR
This paper reports progress on designing a perpendicularly biased 2nd harmonic RF cavity for Fermilab Booster to improve beam distribution and reduce space charge effects, including design details and testing plans.
Contribution
It introduces a novel cavity design with specific biasing and tuning mechanisms aimed at enhancing beam control in Fermilab's accelerator.
Findings
Successful design of the cavity components
Progress in biasing solenoid development
Plans for testing garnet tuner material
Abstract
A perpendicularly biased 2nd harmonic cavity is being designed and built for the Fermilab Booster. Its purpose is to flatten the bucket at injection and thus change the longitudinal beam distribution to decrease space charge effects. It can also help at extraction. The cavity frequency range is 76 - 106 MHz. The power amplifier will be built using the Y567B tetrode, which is also used for the fundamental mode cavities in the Fermilab Booster. We discuss recent progress on the cavity, the biasing solenoid design and plans for testing the tuner's garnet material.
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Taxonomy
TopicsGyrotron and Vacuum Electronics Research · Particle Accelerators and Free-Electron Lasers · Particle accelerators and beam dynamics