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Table 1 Characteristics of nuclear radiations [135]

From: Radiation: a poly-traumatic hit leading to multi-organ injury

Name Relative mass Electric charge Emitted by Range in air Tissue penetration Radiation stopped by
Alpha 7300 + 2 Unfissioned uranium and Plutonium 5 cm First layer of skin Clothing paper
Beta 1 − 1 Fission products 12 m Several layers of skin Clothing
Gammaa 0 0 Fission products 100 m Total body Several feet of concrete or earth
Neutron 1830 0 Emitted only during fission 100 m Total body Several feet of concrete or earth
  1. aFor the purpose of this presentation X-rays are considered along with gamma rays. X-ray wavelength bands largely overlap those of gamma rays, and they interact at least mechanistically like gamma rays. They are now usually distinguished only by their origin