%0 Dataset
%T A method for describing the characteristics of a photonic beam without a homogenizer
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/1ecb9b42-9d2d-4ba8-b8a5-33dbf8ce9860
%W NCDC
%R 10.12072/ncdc.imp.db3936.2023
%A Xiao Guoqing
%K Characteristics of photon beam without equalizer;field size and off-axis ratio
%X A new method is proposed to describe the off-axis ratio (OAR) curve of FFF photon beam. The method can describe the off-axis ratio of FFF photon beam independently without the aid of equalizer photon beam. The method can calculate the field size of FFF photon beam and fit the oar curve shape of FFF photon beam with Gaussian function.