학술논문

Test Results of a High-Gradient 2.856-GHz Negative Harmonic Accelerating Waveguide
Document Type
Periodical
Source
IEEE Microwave and Wireless Components Letters IEEE Microw. Wireless Compon. Lett. Microwave and Wireless Components Letters, IEEE. 31(9):1098-1101 Sep, 2021
Subject
Fields, Waves and Electromagnetics
Communication, Networking and Broadcast Technologies
Signal Processing and Analysis
Electric breakdown
Radio frequency
Harmonic analysis
Periodic structures
Medical treatment
Linear particle accelerator
Particle beams
Accelerating structure
carbon therapy
disk-loaded waveguide (DLW)
high gradients
negative spatial harmonic
Language
ISSN
1531-1309
1558-1764
Abstract
We report the high-gradient tests results of a novel traveling wave accelerating structure for $\beta =0.3$ based on a novel approach of operating at the first negative spatial harmonic. Accelerating gradients of 50 MV/m and peak electric fields of 160 MV/m were achieved in a single structure consisting of 15 coupled cells during tests at the advanced photon source. This work was performed by RadiaBeam, in collaboration with the Argonne National Laboratory, as a part of a Research and Development Program for the development of an ultrahigh-gradient linear accelerator, the Advanced Compact Carbon Ion Linac, for hadron therapy.