X-ray diagnostics installation having means for forming a transp

Details X-ray diagnostics installation having means for forming a transp X-ray diagnostics installation having means for forming a transp

1993-10-15

1995-03-07

Porta, David P.

X-ray or gamma ray systems or devices

Electronic circuit

X-ray source power supply

378108, 378111, H05G 144

Patent

active

053965329

ABSTRACT:
In an x-ray diagnostics installation for mammography, an automatic setting of the optimum beam quality ensues in combination with transparency matching. A set of exposure parameters corresponding to different thicknesses of the examination subject is stored in a memory (reference values). At the beginning of an x-ray exposure, a comparator compares the transparency signal (actual value) to the exposure parameters (reference value) interrogated from the memory dependent on the current thickness of the examination subject, and influences the x-ray tube voltage for the purpose of a rated/actual value comparison without interrupting the exposure.

REFERENCES:
patent: 4455669 (1984-06-01), Aichinger et al.
patent: 4744099 (1988-05-01), Huettenrauch et al.
patent: 5148460 (1992-09-01), Aichinger

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