Radiant energy – Coded record and readers; invisible radiant energy type
Patent
1980-03-11
1982-02-23
Smith, Alfred E.
Radiant energy
Coded record and readers; invisible radiant energy type
250272, G01N 2124, G01N 2320
Patent
active
043170366
ABSTRACT:
A scanning X-ray microscope including an X-ray source capable of emitting a beam of X-rays, a collimator positioned to receive the beam of X-rays and, to collimate this beam, a focusing cone means to focus the beam of X-rays, directed by the collimator, onto a focal plane, a specimen mount for supporting a specimen in the focal plane to receive the focused beam of X-rays, and X-ray beam scanning means to relatively move the specimen and the focusing cone means and collimator to scan the focused X-ray beam across the specimen, a detector disposed adjacent the specimen to detect flourescent photons emitted by the specimen upon exposure to the focused beam of X-rays to provide an electrical output representative of this detection, means for displaying and/or recording the information provided by the output from the detector, means for providing information to the recording and/or display means representative of the scan rate and position of the focused X-ray beam relative to the specimen whereby the recording and/or display means can correlate the information received to record and/or display quantitive and distributive information as to the quantity and distribution of elements detected in the specimen. Preferably there is provided an X-ray beam modulation means upstream, relative to the direction of emission of the X-ray beam, of the focusing cone means.
REFERENCES:
patent: 2754425 (1956-07-01), Froemel
patent: 3718817 (1973-02-01), Afanasiev et al.
patent: 4063088 (1977-12-01), Dailey
Grigsby T. N.
Smith Alfred E.
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