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Table 1 CT to voxel mass density and material type conversion for photons, electrons and positrons in both Precision MC and IDC

From: Benchmarking Monte-Carlo dose calculation for MLC CyberKnife treatments

CT data conversion Precision MC IDC
Voxel mass density Voxel material type Voxel mass density Voxel material type
Particle type
 Photons (primary and secondary) User defined CT-HU to mass density calibration curve, identical to IDC Mass density to material type. Material is either air, soft tissue, or bone User defined CT-HU to mass density calibration curve, identical to Precision MC CT material calibration curve based on Vanderstraeten et al 2017
 Electrons and Positrons As above Water As above As above