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@inproceedings{snively:ipac2021-thpab170,
author = {E.J.C. Snively and G.B. Bowden and V.A. Dolgashev and Z. Li and E.A. Nanni and D.T. Palmer and S.G. Tantawi},
% author = {E.J.C. Snively and G.B. Bowden and V.A. Dolgashev and Z. Li and E.A. Nanni and D.T. Palmer and others},
% author = {E.J.C. Snively and others},
title = {{RF Deflector Design for Rapid Proton Therapy}},
booktitle = {Proc. IPAC'21},
pages = {4086--4089},
eid = {THPAB170},
language = {english},
keywords = {proton, cavity, simulation, polarization, quadrupole},
venue = {Campinas, SP, Brazil},
series = {International Particle Accelerator Conference},
number = {12},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2021},
issn = {2673-5490},
isbn = {978-3-95450-214-1},
doi = {10.18429/JACoW-IPAC2021-THPAB170},
url = {https://jacow.org/ipac2021/papers/thpab170.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-THPAB170},
abstract = {{Pencil beam scanning of charged particle beams is a key technology enabling high dose rate cancer therapy. The potential benefits of high-speed dose delivery include not only a reduction in total treatment time and improvements to motion management during treatment but also the possibility of enhanced healthy tissue sparing through the FLASH effect, a promising new treatment modality. We present here the design of an RF deflector operating at 2.856 GHz for the rapid steering of 150 MeV proton beams. The design utilizes a TE11-like mode supported by two posts protruding into a pillbox geometry to form an RF dipole. This configuration provides a significant enhancement to the efficiency of the structure, characterized by a transverse shunt impedance of 68 MOhm/m, as compared to a conventional TM11 deflector. We discuss simulations of the structure performance for several operating configurations including the addition of a permanent magnet quadrupole to amplify the RF-driven deflection. In addition to simulation studies, we will present preliminary results from a 3-cell prototype fabricated using four copper slabs to accommodate the non-axially symmetric cell geometry.}},
}