Multifunctional ETR1 test plate for evaluation of contrast, resolving power, useful radiation field and centering of the tube.

Test plate with 10 mm pitch grid, centimeter scale, network of fine diagonal lines, markings for different field sizes, test pattern resolution, copper ladder, low contrast details.

CHARACTERISTICS :
- Tests in conventional radiology
- 1 centimeter scale
- 1 test pattern for low contrast
- 1 test pattern 0.6 - 5.0 Lp / mm
- 1 test for centering control
- 1 Absorptiometry Test on 7 steps
- 1 diagonal grid for the definition