Complete check of image quality performance in one shot

Klicken um Bild zu vergrößern
Fig. 1: NORMI RAD/FLU - detail layout
Klicken um Bild zu vergrößern
Fig. 2: NORMI RAD/FLU - radiographic image

The NORMI® RAD/FLU test object, which allows to check all relevant image quality parameters in one single shot,
includes the following test details (see Fig. 1):


Copper step wedge

to determine the dynamic range:

17 copper steps, thickness from (0.00 - 3.48) mm, diameter 150 mm outside; 110 mm outside; depths 13 mm for steps 1 - 8, 5 mm for steps 10 - 17



Radiation absorbing grid


Radiation absorbing circles


Center markings

2, 10

Detail contrast test elements

8 elements with 10 mm diameter and depths from 0.4 - 4.0 mm,

16 elements (one inside each copper step) with 4 mm diameter and 2.5 mm depth


Numbered copper steps


Structure-free inner area

with center markings (9)


Resolution test pattern

to determine the line pair resolution;

with resolutions from 0.6 lp/mm - 5.0 lp/mm,

thickness of copper plate 1.1 mm


kV test area

to determine radiation quality

Ytterbium, thickness 0.78 mm


Tube axis direction markings






Cookies at PTW websites

At our websites we use cookies to collect statistic information in order to optimise the use of our website. By proceeding further into our website, you accept our use of cookies. Read more about our cookie policy and instructions on how to delete cookies.
Accept cookies