Publications by authors named "Yves Menesguen"
In the field of quantitative X-ray analysis techniques, such as electron probe microanalysis, precise knowledge of fundamental parameters is crucial. Especially, the accurate determination of photon mass attenuation coefficients is essential to perform correct elemental quantification. While the widely used databases offer agreement for the hard X-ray range, significant differences arise for lower photon energies.
View Article and Find Full Text PDFA cryogenic electrical-substitution radiometer was used for the primary calibration of monochromatic photon beams at synchrotron, which are in turn employed to determine the intrinsic efficiency of an HPGe detector between 3.5 keV and 8 keV. This allowed the determination of the thickness of the dead layer, which enabled the calculation of the efficiency up to 55 keV, where the active thickness is not determinant.
View Article and Find Full Text PDFArticle Synopsis
- The study focused on measuring the photon emission intensities of (210)Pb using a standard solution and liquid scintillation counting for activity measurement.
- Conventional γ-ray spectrometry was used to determine the absolute emission intensity of γ-rays and X-rays.
- The researchers achieved high precision in measuring individual X-ray lines by using a cryogenic detector, accounting for satellite lines in the spectrum.
Article Synopsis
- Researchers used tunable monochromatic photon radiation to analyze how much bismuth absorbs in the 7keV to 20keV energy range.
- They measured the fluorescence from bismuth by combining data from photoionization and X-rays from a radioactive source (210Pb).
- By varying photon energies, they could successively ionize different L subshells, helping them to analyze rearrangement spectra and determine the relative X-ray intensities of the L1, L2, and L3 series.