Investigation of X-Band Coaxial Magnetron using Three-dimensional Particle-In-Cell Simulation

Medical magnetrons to operate the medical linear accelerator (LINAC) are widely used for the radiation therapy systems. The operation performances of medical LINAC generating the high energy X-ray to treat the cancers depends on the RF performances of medial magnetron. The medical 9.3 GHz coaxial ma...

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Published in2019 International Vacuum Electronics Conference (IVEC) pp. 1 - 2
Main Authors Lee, Jeong-Hun, Kim, Geun-Ju, Kim, Sanghoon, Lee, Yong-Seok, Kim, Insoo S., Kim, Jung-Il
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2019
Subjects
coaxial resonator
medical linear accelerator
PIC simulation
x-band magnetron
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Summary:Medical magnetrons to operate the medical linear accelerator (LINAC) are widely used for the radiation therapy systems. The operation performances of medical LINAC generating the high energy X-ray to treat the cancers depends on the RF performances of medial magnetron. The medical 9.3 GHz coaxial magnetron is investigated by using three-dimensional particle-in-cell simulation to analyze the RF performances. The maximum output power of 1.88 MW with the efficiency of 53 % is measured at the stable \pmb\pi-\mathbf{mode} resulted from the 20-electron spokes. And, the frequency bandwidth controlled by the frequency tuner shows the 1.5 \mathbf{MHz}/\pmb\mu \mathbf{m} with the bandwidth of 60 MHz.
DOI:10.1109/IVEC.2019.8744923