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钴-60是一种放射性同位素,可由原子反应堆产生,会不断衰变而放出丙种射线。丙种射线与紫外线和微波都属电磁波,不过前者的波长较短,频率较高,光子能量较大。丙种射线的光子不带电,穿透力强,其射程在空气中可达100m,在生物体内为几厘米至几十厘米。其光子能量为1.1732及1.3325MeV,通过物质时可将分子或原子的电子击
Cobalt-60 is a radioisotope that can be produced by atomic reactors and decays continuously to emit gamma rays. C rays and ultraviolet and microwave are electromagnetic waves, but the former wavelength is shorter, higher frequency, larger photon energy. The photons of type C rays are uncharged and have strong penetrating power. The range of their photons is up to 100m in the air and several centimeters to tens of centimeters in the organism. The photon energy of 1.1732 and 1.3325MeV, through the material can be molecular or atomic electronic impact