X-ray generator dose fluctuation suppression

Details X-ray generator dose fluctuation suppression X-ray generator dose fluctuation suppression

1987-06-25

1989-01-03

LaRoche, Eugene R.

X-ray or gamma ray systems or devices

Electronic circuit

X-ray source power supply

378110, 378112, 377 16, H05G 144

Patent

active

047962860

ABSTRACT:
In X-ray generators comprising a converter for generating the high-voltage for an X-ray tube, substantial dose fluctuations are liable to occur from one exposure to another of series involving a fixed exposure time due to supply voltage fluctuations or fluctuations in the object absorption. These dose fluctuations are more pronounced as the exposure time is shorter and as the converter frequency is lower. These fluctuations are reduced by terminating a series of exposures each time after the same number of converter alternations when the deviation between the actual value and the reference value of the dose or the dose rate is smaller than a predetermined value.

REFERENCES:
patent: 4119856 (1978-10-01), Franke

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