Measurements of fallout nuclides in the body of a dog. Gamma rays are detected by a sodium iodine crystal, which records them as electrical pulse. An electronic analyzer gives a spectrum of the number and kinds of gammas present and from this the natural

- Image ID: G16BJ6
Measurements of fallout nuclides in the body of a dog. Gamma rays are detected by a sodium iodine crystal, which Stock Photo
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Measurements of fallout nuclides in the body of a dog. Gamma rays are detected by a sodium iodine crystal, which records them as electrical pulse. An electronic analyzer gives a spectrum of the number and kinds of gammas present and from this the natural
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Image ID: G16BJ6
Measurements of fallout nuclides in the body of a dog. Gamma rays are detected by a sodium iodine crystal, which records them as electrical pulse. An electronic analyzer gives a spectrum of the number and kinds of gammas present and from this the natural and fallout nuclides in the body can be determined. External background is diminished by a shield (cut away to show the dog inside). A nuclide is an atomic species characterized by the specific constitution of its nucleus, i.e., by its number of protons Z, its number of neutrons N, and its nuclear energy state. Photograph taken by the US Atomic Energy Commission,1967.