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Method: HYDRA-X-ray fluorescence spectroscopy
Organization
Centre de recherche et de restauration des musées de France
Alternative labels
XRF
FRX
fluo X
Description
X-ray fluorescence (XRF) spectroscopy is the emission of characteristic "secondary" (or fluorescent) X-rays from a material that has been excited by being bombarded with high-energy X-rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis, particularly in the investigation of metals, glass, ceramics and building materials, and for research in geochemistry, forensic science, archaeology and art objects[1] such as paintings. http://en.wikipedia.org/wiki/X-Ray_fluorescence
Techniques
X-ray fluorescence spectroscopy (xrf)
Type
Analysis Method
Version
30/10/2024
Parameters
Type: Anode nature
Unit: none
Value: Copper
Type: Detector
Unit: none
Value: large area Silicon Drift Detector (SDD)
Type: Detector active collimated area
Unit: mm²
Value: 50
Type: Detector Window composition
Unit: none
Value: Beryllium
Type: Detector Window thickness
Unit: µm
Value: 125
Type: Detector Peak to background ratio
Unit: none
Value: 20,000:1 (ratio of counts from 5.9 keV to 1 keV)
Type: Detector Cooling system
Unit: none
Value: Thermoelectric cooler 2-stage (85° ΔT max)
Type: Detector Electronics
Unit: none
Value: Advanced DPP
Type: Detector Energy Resolution
Unit: none
Value: 125-140 eV FWHM @ Mn-Kα line (5.890 keV)
Type: working distance
Unit: mm
Value: 20-24
Type: minimum distance of the X-Ray tube from sample plane
Unit: mm
Value: 9
Type: minimum distance of the Central Detection Head from sample plane
Unit: mm
Value: 16
Type: Current intensity
Unit: µA
Value: 700
Type: Voltage
Unit: kV
Value: 35
Type: Maximum voltage
Unit: kV
Value: 50
Type: Maximum current intensity
Unit: µA
Value: 600
Type: X-Ray tube power
Unit: W
Value: 30
Type: Alignement system
Unit: none
Value: 4 pointing lasers
Type: Microscope camera field of view
Unit: mm²
Value: 30 x 25
Type: minimum distance of the XRD detector from sample plane
Unit: mm
Value: 20
Type: X-ray tube filter
Unit: none
Value: No filter, 500 μm Al, 800 μm Al, 15 μm Ni