Radiant energy – Inspection of solids or liquids by charged particles – Analyte supports
Patent
1976-03-08
1977-08-02
Church, Craig E.
Radiant energy
Inspection of solids or liquids by charged particles
Analyte supports
250322, 250402, 250452, 250490, 250525, G03B 4116
Patent
active
040398366
ABSTRACT:
An apparatus for X-raying having a source structure for providing X-rays. A patient is disposed in front of a bucky having a grid and film cassette. A support structure is disposed at a distance from the bucky and parallel thereto, the patient being therebetween. The source structure for the X-rays is attached to the support structure and is slidable along the length thereof. A motor moves the source structure at variable rates of speed along the length of the support structure. A feedback mechanism is attached to the source structure, moving therewith along the length of the support structure, and also is coupled to the motor. The feedback mechanism detects the thickness of the body areas of the patient through which X-rays are passing or the quantity of X-rays passing completely therethrough, and adjusts the motor speed such that the duration of exposure to X-rays of the patient's body area in the vertical dimension is directly proportional to the thickness of each area or inversely proportional to the quantity of X-rays passing therethrough.
REFERENCES:
patent: 2078340 (1937-04-01), Powers
patent: 3150260 (1964-09-01), Smith
patent: 3492482 (1970-01-01), Forsyth
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