Investigation into the Uniformization of Proton Beams for FLASH Therapy-Reference-Cited by-同舟云学术

Investigation into the Uniformization of Proton Beams for FLASH Therapy

Published:2024-03-21 Issue:6 Volume:14 Page:2660
ISSN:2076-3417
Container-title:Applied Sciences
language:en
Short-container-title:Applied Sciences

Author:

Han Xuejian¹²³,Zhang Manzhou²³

Affiliation:

1. Faculty of Material Science and Technology, Shanghai-Tech University of China, Shanghai 200127, China

2. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201899, China

3. Shanghai Key Laboratory of Proton-Therapy, Shanghai 201801, China

Abstract

FLASH proton therapy is widely considered in many labs. However, achieving a dose rate sufficient for FLASH is challenging, especially when using the scanning method. A beam uniformization process using a nonlinear magnet is employed to reduce the scanning time, supplemented by multi-energy extraction to enhance the dose rate. The impact of octupole fields, multipole field components, and step field on the transport line are tested. The nonlinear effect of the magnetic fields on the transverse motion of the particle beam is used to establish a uniform dose distribution at the target. Different schemes are investigated and the octupole approach was finally selected.

Publisher

MDPI AG

Link

https://www.mdpi.com/2076-3417/14/6/2660/pdf

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