Observation of X-ray shadings in synchrotron radiation-total reflection X-ray fluorescence using a color X-ray camera

Examples of XRF and PIXE imaging with few microns resolution using SLcam® a color X‐ray camera

“…The unique properties of SLcam r make it ideal for, e.g. TXRF applications where detailed information on X-ray beam propagation and shadowing effects can be measured [16] and analyzed with appropriate models [18] . The first successful installation of SLcam r at PIXE facility was recently realized at High-Speed PIXE beamline at Ion Beam Center at Helmholtz-Zentrum Dresden-Rossendorf.…”

“…The first sample (see Figure 4) is a picoliter droplet of Ni solution [16] . The droplet was measured at synchrotron facility in TXRF geometry and with 8:1 magnifying optics.…”

“…Also a clear increase of the XRF intensity at the left slope of the droplet and shadowing in the center is visible. It should be noted that the beam footprint in TXRF measurements is in the range of millimeters [5] ; thus, TXRF imaging with comparable resolution would not be possible in case of scanning methods [15,16] . Figure 5 shows an image of a RAM chip cross-section performed with an X-ray tube used for excitation.…”

2015 Atomic Spectrometry Update – a review of advances in X-ray fluorescence spectrometry and their applications

“…A study of a fundamental topic was presented by Fittschen et al 64 who addressed the problem of absorption effects and the impact of specimen shape on TXRF analysis. Model calculations indicated that a ring-shaped specimen should give better results in terms of higher counts per mass, compared with a lled rectangle or circle shaped samples.…”

Grazing angle X-ray fluorescence from periodic structures on silicon and silica surfaces

“…A correct interpretation of the angular profiles of intermediate structures is of prime importance, in particular for investigation of nanostructures and for TXRF measurements of droplets where the quantification problem is one of the main issues [45].…”