Secondary Roentgen Radiation

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Abstract
A survey of secondary roentgen radiation illustrated by calculations of some practical examples. It is shown how secondary radiation depends upon the quality and quantity of primary radiation and upon the atomic number of the secondary radiation source. Measurements were made at 70, 100, 130, and 160 kV constant potential on the secondary radiation from some materials of practical interest. The energy distr. was measured with a scintillation spectrometer. It was shown that light materials give high secondary dose-rates, produced by scattered radiation while heavy materials give fluorescence radiation.