Radiant energy – Coded record and readers; invisible radiant energy type
Patent
1979-10-09
1981-01-27
Smith, Alfred E.
Radiant energy
Coded record and readers; invisible radiant energy type
250278, 250277CH, G01N 2320
Patent
active
042477719
ABSTRACT:
A novel parafocusing X-ray diffractometer operates by irradiating a thin ring of fine crystals with a point source of monochromatic X-rays and passing the cone of diffracted X-rays at each focal point through a pinhole to an X-ray sensor, thereby obtaining optimum values for both line intensity and resolution of lines.
REFERENCES:
patent: 3903415 (1975-09-01), Holzapfel
Klug et al., "X-Ray Diffraction Procedures for Polycrystalline and Amorphous Materials", 2nd ed., John Wiley & Sons, N.Y., 1974, pp. 222-225, 232-235.
Fields Carolyn E.
Frevel Gordon H.
Frevel Linus K.
Kadish Karl M.
Smith Alfred E.
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