Abstract
IN a letter in Nature (156, 150 ; 1945), Messrs. Tasker and Towers describe a method for the radiography of thin objects such as paper and fabrics, using secondary electrons emitted from a sheet of lead irradiated by high-voltage X-rays. Reference is made to complications which sometimes arise owing to the emission of electrons from the material radiographed, in the worst cases a partially positive picture appearing.
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ROBERTS, J. Secondary Electron Photography. Nature 157, 695–696 (1946). https://doi.org/10.1038/157695b0
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DOI: https://doi.org/10.1038/157695b0
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