Abstract
The Shanghai Advanced Proton Therapy facility employs third-integer slow extraction. In order to achieve accurate treatment, high-quality spill is needed. Therefore, parameters that may affect slow extraction should be investigated by simulation. A computer model of the synchrotron operation slow extraction was constructed with MATLAB®. By simulating the motion of the circulating protons, we could quantify the influence of machine and initial beam parameters on properties of the extracted beam, such as ripple, uniformity, stability, on- and off-time of the spill and spill width in the synchrotron. Suitable design parameters including the horizontal tunes, power supply ripple, longitudinal RF cavity voltage, RF-KO and the chromaticities were determined.
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This work was supported by the Youth Innovation Promotion Association of Chinese Academy of Sciences (No. 20150210).
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Yang, YH., Zhang, MZ. & Li, DM. Simulation study of slow extraction for the Shanghai Advanced Proton Therapy facility. NUCL SCI TECH 28, 120 (2017). https://doi.org/10.1007/s41365-017-0273-0
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DOI: https://doi.org/10.1007/s41365-017-0273-0