Automatic position control system for x-ray machines

Details Automatic position control system for x-ray machines Automatic position control system for x-ray machines

1994-08-04

1996-01-09

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

2503701, G01T 1185

Patent

active

054830729

ABSTRACT:
An x-ray machine, such as a mammography machine, comprises a source of a narrow beam of radiation which scans across an object, e.g., a breast, to be imaged. A sensor for the narrow beam moves in the same direction as the narrow beam. The sensor generates an output signal which indicates the position of the beam relative to a specific location on the sensor. A control circuit receives the signal from the sensor and outputs a control signal to regulate the position of the beam relative to the sensor.

REFERENCES:
patent: 3691382 (1972-09-01), Somer
patent: 4510391 (1985-04-01), Goganov et al.
patent: 4800580 (1989-01-01), Houtman et al.
patent: 4843246 (1989-06-01), Benes et al.

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