Simulation study of slow extraction for the Shanghai Advanced Proton Therapy facility

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 syn- chrotron operation slow...

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Veröffentlicht in:Nuclear science and techniques 2017-09, Vol.28 (9), p.1-7, Article 120
Hauptverfasser: Yang, Yu-Hui, Zhang, Man-Zhou, Li, De-Ming
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Sprache:eng
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Zusammenfassung: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 syn- chrotron 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.
ISSN:1001-8042
2210-3147
DOI:10.1007/s41365-017-0273-0