Analytical unit for wave-dispersive X-ray fluorescence spectrometers

Application of Wavelength Dispersive X-Ray Spectroscopy in X-Ray Trace Element Analytical Techniques

The determination of the efficiency of energy dispersive X-ray spectrometers by a new reference material.

A calibration procedure for the detection efficiency of energy dispersive X-ray spectrometers (EDS) used in combination with scanning electron microscopy (SEM) for standardless electron probe microanalysis (EPMA) is presented. The procedure is based on the comparison of X-ray spectra from a reference material (RM) measured with the EDS to be calibrated and a reference EDS. The RM is certified b...

Temperature gradient analyzers for compact high-resolution X-ray spectrometers

Compact high-resolution X-ray spectrometers with a one-dimensional temperature gradient at the analyzer crystal are considered. This gradient, combined with the use of a position-sensitive detector, makes it possible to relax the usual Rowland-circle condition, allowing increased space at the sample position for a given energy resolution or arm radius. Thus, for example, it is estimated that ap...

Electron-multiplying CCDs for future soft X-ray spectrometers

CCDs have been used in several high resolution soft X-ray spectrometers for both space and terrestrial applications such as the Reflection Grating Spectrometer on XMM-Newton and the Super Advanced X-ray Emission Spectrometer at the Paul Scherrer Institut in Switzerland. However, with their ability to use multiplication gain to amplify signal and suppress readout noise, EM-CCDs are being conside...

Silicon Lithium Detectors for Synchrotron Energy Dispersive X-Ray Fluorescence Spectroscopy

Introduction Detector description and its principle of operation Detector module. Detector Features and its Performance EDXRF of Fe 55 Spectrum Detector comparison with Silicon Drift Detector SDD Concluding remarks References A Silicon Lithium Si(Li) detector is presented. The detector structure and its working principle are explained. The detector is cooled to 77o K by liquid Nitrogen. The det...