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

---

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, , 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.

---

Size: 4200px × 2725px
Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1967, 20th, analyzer, animal, apparatus, atomic, bw, canine, century, device, dog, electronic, energy, equipment, fallout, historic, historical, history, lab, laboratory, male, man, measurement, men, nuclear, nuclide, nuclides, physics, radioactive, research, science, testing