Figure 1

(a) Filtered incident pink beam at the sample position as measured with the PCO4000 detector while performing an energy scan (orange, solid) and differential X-ray spectrum as detected by Pixirad-1/Pixie-III (blue, stars) assessed via the threshold scan at a few selected values. (b) Detector’s bandwidth when adopting the energy threshold settings to discriminate the 11.0 keV and the 13.8 keV peaks as measured at a few selected energy points.