Spectral Imaging and X-Ray Microanalysis with Multiple Detectors

X-ray imaging detectors

Synthesis and characterization of Gd2O2 S: Tb3+ phosphor powder for X-ray imaging detectors

Gadolinium oxysulfide phosphor doped with trivalent terbium have been synthesized using urea homogenous precipitation and followed by sulfurization at 800 °C under argon atmosphere. Structural and morphological of synthesized phosphor powder were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectrometry (FT-IR). Hexagonal structure ...

ACCURACY, REPRODUCIBILITY AND SCOPE FOR X-RAY MICROANALYSIS WITH Si(Li) DETECTORS

The current state of the art for x-ray microanalysis is discussed with particular reference to accuracy and limits of detection, corrections for peak overlap and use of "windowless" detectors . It is now about ten years since reports appeared in the literature claiming that Si(Li) spectrometers (EDS) could be used for routine electron microprobe x-ray analysis giving results with accuracy compa...

Bio-medical X-ray imaging with spectroscopic pixel detectors

The aim of this study is to review the clinical potential of spectroscopic X-ray detectors and to undertake a feasibility study using a novel detector in a clinical hospital setting. Detectors currently in development, such as Medipix-3, will have multiple energy thresholds allowing for routine use of spectroscopic bio-medical imaging. We have coined the term MARS (Medipix All Resolution System...

X-ray imaging detectors for synchrotron and XFEL sources

Current trends for X-ray imaging detectors based on hybrid and monolithic detector technologies are reviewed. Hybrid detectors with photon-counting pixels have proven to be very powerful tools at synchrotrons. Recent developments continue to improve their performance, especially for higher spatial resolution at higher count rates with higher frame rates. Recent developments for X-ray free-elect...