Research Article

A Tunable Energy Filter for Medical X-Ray Imaging

Table 1

Summary of the measurements and model predictions. The average transmission ( ), image size ( ), gain ( ), and the gap at the rear end of the lens ( ) are presented at 20, and 23 keV.

Geometrical modelRay tracingMeasurement

[%][%]

2310.00.59637.49.30.57536.011.1 (7.8–13.8)0.500
20 10.00.60837.69.20.57746.811.0 (7.9–13.8)0.5220
17 10.00.591157.59.80.571037.112.9 (9.6–16.1)0.5452

(a)Error estimates correspond to standard deviation.