QA Standard Fluoroscopy Set
For checking peak white and black level in conjunction with an oscilloscope.
(a) For checking greyscale linearity: nominal 10% contrast steps, plus peak white and black level details. For adjustment of monitor brightness/contrast
(b) Circular geometry: for checking television scan linearity
For checking field size (10mm spacing) and geometry (20mm spacing)
HÜTTNER type 18
Resolution limit: 0.5 to 5.0 line pairs mm-1
To adjust electronic/optical focus in fluoroscopy & small format fluorography
For checking focal homogeneity over the image field
Spatial frequency 0.86 cycles mm-1
For checking low-contrast sensitivity & to quantify noise plus contrast loss
19 details, 11 mm in diameter, with a contrast range 14.8% to 0.42%
Pattern of 108 details in 12 sizes, 9 contrasts
Used to plot the Contrast Detail Index for overall image quality
Cu fillters available separately.