Anisotropic Dose and Its Applications in Directional Radiation Sensing,
ARMY ELECTRONICS COMMAND FORT MONMOUTH N J
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While conducting radiation experiments using polyvinyl chloride and photographic film as dosimeters the author noticed anomalous hot spots in dose delivered to regions where there was a perturbation in the atomic number Z close to the dosimeter. These increases in local dose were strongly dependent on the direction of the incident radiation and could be observed even when the perturbation was a very thin layer of different Z material. Such perturbations can affect measurements of gamma and X-ray doses and may be responsible for serious errors in dosimetry if one is not aware of their existence. This effect is discussed in the report.
- Nuclear Instrumentation
- Radioactivity, Radioactive Wastes and Fission Products