Scintillation Camera

1958/01/01 by Hal O. Anger · 23 citations
Physics and Astronomy · #Nuclear Physics and Applications #Radiation Detection and Scintillator Technologies #Radioactive Decay and Measurement Techniques

paper · doi:10.1063/1.1715998

openalex publication_date 1958/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A new and more sensitive gamma-ray camera for visualizing sources of radioactivity is described. It consists of a lead shield with a pinhole aperture, a scintillating crystal within the shield viewed by a bank of seven photomultiplier tubes, a signal matrix circuit, a pulse-height selector, and a cathode-ray oscilloscope. Scintillations that fall in a certain range of brightness, such as the photopeak scintillations from a gamma-ray-emitting isotope, are reproduced as point flashes of light on the cathode-ray tube screen in approximately the same relative positions as the original scintillations in the crystal. A time exposure of the screen is taken with an oscilloscope camera, during which time a gamma-ray image of the subject is formed from the flashes that occur. One of many medical and industrial uses is described, namely the visualization of the thyroid gland with I131.

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