The quality of x‐ray diffraction patterns made with copper radiation and recorded on Polaroid film by use of a fluorescent screen can be significantly improved. Screens with zinc sulfide layers dimensioned for complete utilization of copper radiation and reduced conversion of the continuous spectrum provide a sixfold reduction in background compared to that of patterns prepared with commercial screens.
REFERENCES
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Polaroid XR‐7 Land diffraction cassette.
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Du Pont type D (blue fluorescence) miniature radiographic screen.
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C. B. Neblette, Photography, Its Materials and Processes (D. Van Nostrand, Inc., Princeton, New Jersey, 1962).
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© 1968 The American Institute of Physics.
1968
The American Institute of Physics
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