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A novel shielding scheme studied by the Monte Carlo method for electron beam radiotherapy
Kun Yue1, Yuan Yao, Xiaoqing Dong
1Department of Radiation Therapy, Number Three People Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, China.
Abstract:
Lead that has been employed widely for shielding in electron beam radiotherapy can produce bremsstrahlung photons during the shielding process. A novel shielding scheme with a two-layer structure has been studied using a Monte Carlo method in order to reduce this bremsstrahlung effect. Compared with the conventional lead, the novel shielding scheme, comprised of a Styrene-Ethylene-Butylene-Styrene Block Co-polymer (SEBS) above and lead below, can efficiently reduce the generation of bremsstrahlung while providing better shielding for incident electrons. Therefore, this novel shielding scheme may play an important role in future applications.
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