%0 Dataset
%T Effect of edge magnetic field on electron gun beam characteristics in real-time MRI-guided radiotherapy
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/5c2ced19-5133-4f1a-8da9-e60c8a963d96
%W NCDC
%R 10.12072/ncdc.imp.db4090.2023
%A Xiao Guoqing
%K Electron gun;edge magnetic field;parallel configuration;radiotherapy;magnetic resonance imaging
%X In this paper, we observed the influence of Mr edge magnetic field on the beam characteristics of electron gun in real-time MRI guided radiotherapy (mrigrt) system. The beam characteristics of Varian 600C electron gun and Litton l2087 electron gun under different edge magnetic fields of 1.5T MR in parallel configuration mrigrt system were simulated by electromagnetic field simulation software, It leads to a large amount of current loss, and the root mean square emittance changes greatly.