TY  - Data
T1  - The dosimetric impact of magnetic field on external-beam therapy using GPU-based Monte Carlo code ARCHER
A1  - Xiao Guoqing
DO  - 10.12072/ncdc.imp.db4028.2023
PY  - 2023
DA  - 2023-10-17
PB  - National Cryosphere Desert Data Center
AB  - This paper introduces a newly developed GPU based Monte Carlo program archer with independent intellectual property rights, which can quickly calculate the external radiation dose in magnetic field. The results show that the magnetic field perpendicular to the beam has a certain effect on the dose distribution. In breast cancer cases, due to the electron return effect, the dose at B=1.5T's body and air interface increased when compared with non magnetic participation. However, for prostate cases, the dose of PTV area only decreased slightly, because the tissue density difference of prostate was small. In the case of protons, the deflection of protons is obvious in the vertical magnetic field, but it can be ignored in the in-line magnetic field. Compared with Topas, Archer greatly improves the speed of dose calculation. It is clear that Mr guided photon and proton therapy should consider the dosimetric changes of mrigrt plan using fast Monte Carlo dose engine.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/43f0fc5b-76c2-4c6c-afaf-dc74f80d2fd6
ER  -