dose

Thus, a physical dose of alpha particles does not produce the same amount of damage as that produced by the same dose of beta particles, gamma rays, or X rays.

For expressing the dose of radiation absorbed in living tissue, the principal units are the gray (Gy; 1 Gy = 1 joule of radiation energy absorbed per kilogram of tissue) and the rad (1 rad = 100 ergs per gram of tissue = 0.01 Gy). The sievert (Sv)…

…exposed to a known radiation dose. In this way, variations that result from differences in film properties or development procedures are canceled out. When used to monitor exposure to low-energy radiation such as X rays or gamma rays, emulsions tend to overrespond owing to the rapid rise of the photoelectric…