Patent · US Expired

X-Ray generator incorporating automatic correction of a dose-determining exposure parameter

US4486896A · kind A · utility

10Cited by

1References

7Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Detlev Richter · Unterhaching, DE
Thomas Burrig · Hamburg, DE

Key dates

Filing date	Aug 9, 1982
Grant date	Dec 4, 1984
Priority date	—
Expiry date	Aug 9, 2002

Classification

Technology area (CPC H)Electricity
CPC primaryH05G1/44
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The density of an X-ray exposure depends not only on the exposure parameters, but also on the film development parameters. In order to eliminate the effect of fluctuations in the latter parameters, the X-ray generator in accordance with the invention comprises a measuring device which measures the density of a test exposure and which acts on an adjusting member for the exposure parameters. By subjecting the test exposure to the same conditions as the X-ray exposure, the effects of parameter fluctuations during film processing process can be eliminated to a high degree.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.