Figure 4
Predicted versus measured focal distances in the energy range from 6.5 to 18.5 keV. The horizontal measurements above 16.5 keV were too noisy and the error bars exceeded the mean deviations; therefore they are excluded. The magnitude of differences (<25 mm) is expanded by the choice of Y-scale. Compared with the 1538.8 mm focal distance, which is the transfocator setpoint, they are minor (less than 1.69%). |