Variable temperature flat plate powder diffraction camera

Details Variable temperature flat plate powder diffraction camera Variable temperature flat plate powder diffraction camera

1975-01-10

1976-07-13

Smith, Alfred E.

Radiant energy

Coded record and readers; invisible radiant energy type

250272, G01N 2320

Patent

active

039696235

ABSTRACT:
A flat-plate camera for X-ray diffraction studies of powdered materials under various conditions of temperature. A spindle assembly is provided for rotating a sample specimen about the longitudinal axis of the sample and such that the axis of an X-ray beam striking the specimen, orthogonally intersects the longitudinal axis of the specimen. The spindle assembly includes means for providing a temperature controlled air stream which is directed towards the sample specimen along its longitudinal axis for varying the sample temperature. A flat film plate to be exposed is vertically mounted in back of the sample specimen and is asymmetrically arranged with respect to the X-ray beam. An X-ray shield is provided to permit exposure of sequential segments of the film plate thereby providing direct comparison on one photograph of different exposures taken at various sample temperatures.

REFERENCES:
patent: 2543825 (1951-03-01), Beu et al.
patent: 3626185 (1971-12-01), Parrish et al.
patent: 3764809 (1973-10-01), Haas
patent: 3855469 (1974-12-01), Pluchery et al.

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