|TUXBA4||Rapid Radio-Frequency Beam Energy Modulator for Proton Therapy||298|
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Funding: This work is supported by US Department of Energy (DOE) Contract No. DE-AC02-76SF00515.
We present the design for a rapid proton energy modulator with radio-frequency (RF) accelerator cavities. The energy modulator is designed as a multi-cell one-meter long accelerator working at 2.856 GHz. We envision that each individual accelerator cavity is powered by a 400 kW low-voltage klystron to provide an accelerating / decelerating gradient of 30 MV/m. We have performed beam dynamics simulations showing that the modulator can provide ± 30MeV of beam energy change, with an energy spread of 3 MeV for a 7 mm long (full length) proton bunch. A prototype experiment of a single cell is in preparation at the Next Linear Collider Test Accelerator (NLCTA) at SLAC.
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|DOI •||reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2019-TUXBA4|
|About •||paper received ※ 27 August 2019 paper accepted ※ 06 September 2019 issue date ※ 08 October 2019|
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