Photon-scattering, electron-loss and shadow-effect correction factors calculation for cylindrical free-air chamber

In a report detailing an international comparison of air kerma standards for the ISO 4037 narrow spectrum series (EUROMET.RI(I)-S3), which was conducted from 2004 to 2005, the ratio of differences and expanded uncertainties (Di/Ui) for INER's IN-250 and IN-300 radiation qualities were 0.9 and 1.8, respectively. If the correction factors obtained in this study are substituted, the differences can be reduced, and the (Di/Ui) ratios become 0.36 and 0.6 for IN-250 and IN-300, respectively.