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15 September 1978 Neutron Radiography Using Electronic Imaging Technology
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Proceedings Volume 0143, Applications of Electronic Imaging Systems; (1978) https://doi.org/10.1117/12.956554
Event: 1978 Technical Symposium East, 1978, Washington, D.C., United States
Abstract
Details of an advanced electronics imaging system which has been applied to field neutron radiography are presented in this paper. Heretofore, many applications of neutron radiography have not been utilized due to system mobility and long exposure times. A modified image intensifier was used with a scan conversion memory and mobile neutron radiography system to obtain neutron radiographs on a television monitor in .5 to 10 minutes. The electronic imaging system consists of a phosphor screen coupled to a light amplifier by a Bouwers' concentric mirror system with an aperature of GRA 1:0.65. The image is transferred from the light amplifier through relay optics to an image isocon television camera. A standard EIA 525 line system is used to interface easily with output devices such as frame integrator, video tape recorder, kinescope, and monitor. Some application areas of neutron radiographic systems for quality control are discussed, i.e. 1. Aircraft maintenance for detecting corrosion. 2. Ammunition inspection: Charge gradients. 3. Biomedical for pathological investigation of bone tumors. Real-time imaging is tied to reactors, accelerators, and large Californium-252 sources. Field applications dictate small Californium-252 sources for portability. When small sources are used, a frame integrator is added to the system which enables exposures to be made from seconds to ten minutes.
© (1978) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Donald A. Garrett and Donald A. Bracher "Neutron Radiography Using Electronic Imaging Technology", Proc. SPIE 0143, Applications of Electronic Imaging Systems, (15 September 1978); https://doi.org/10.1117/12.956554
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