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Energy deposited in air and computed luminescence from 6 and 10 MeV electrons or photons emitted from a radiotherapy source.
| Energy [MeV] | Particle type | Mass-energy attenuation coefficient [cm2/g or MeV∙cm2/g] | Dose to air (r = 50 cm) per 1 Gy dose to tissue (SSD = 100 cm) [Gy] | Photons generated (SSD = 50 cm) [photons/cm3] | |
|---|---|---|---|---|---|
| Air | Tissue | ||||
| 6 | Photon | 0.0165 | 0.0179 | 3.69 | 7.00×108 |
| 10 | Photon | 0.0145 | 0.0155 | 3.74 | 7.11×108 |
| 6 | e− | 1.97 | 2.00 | 3.94 | 7.49×108 |
| 10 | e− | 2.16 | 2.13 | 4.05 | 7.69×108 |
