单词 | gamma radiation |
释义 | gamma radiation Electromagnetic radiation emitted by excited atomic nuclei during the process of passing to a lower excitation state. Gamma radiation ranges in energy from about 10-15 to 10-10 joule (10 keV to 10 MeV) corresponding to a wavelength range of about 10-10 to 10-14 metre. A common source of gamma radiation is cobalt–60: ![]() |
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