BS EN IEC 60336:2021 PDF

1   Scope This document applies to focal spots in medical diagnostic X- ray tube assemblies for medical use, operating at X- ray tube voltages up to and including 150 kV. This document describes the test methods employing digital detectors for determining:

a)

focal spot dimensions in terms of nominal focal spot values , ranging from 0,1 to 3,0;

b) line spread functions ;

c) one-dimensional modulation transfer functions ;

d)

focal spot pinhole radiograms ,

and the means for indicating compliance. In informative annexes, star pattern imaging and blooming value are described.