Filtern
Dokumenttyp
- Zeitschriftenartikel (11)
- Vortrag (2)
- Posterpräsentation (1)
Schlagworte
- ERDA (2)
- XANES (2)
- XAS (2)
- XRF (2)
- Annealing tests (1)
- BCN (1)
- Berliner Goldhut (1)
- Deposition process (1)
- Depth profiling (1)
- EXAFS (1)
- Elastic recoil detection analysis (1)
- Energy loss (1)
- Gold (1)
- Hafnium oxide (1)
- Hardness (1)
- Hydrogen (1)
- ILGAR (1)
- Indium sulfide (1)
- Interfacial silicon oxide (1)
- Ion beam analysis (1)
- Ion layer gas reaction (1)
- Nuclear reaction analysis (1)
- Oxygen (1)
- PECVD (1)
- Provenancing (1)
- Reduction (1)
- Reference material (1)
- SR-XRF (1)
- Speciation (1)
- Specifikation (1)
- Spray deposition (1)
- Stopping power (1)
- Sy-RFA (1)
- Trace elements (1)
- X-ray diffraction (1)
- X-ray fluorescence (1)
- X-ray optics (1)
- X-ray spectroscopy (1)
- XPS (1)
Eingeladener Vortrag
- nein (2)
Measuring in a non-destructive way the characteristic trace elements of the metal allows following the circulation of gold in the past. The aim of this work is to probe the possibilities of X-ray fluorescence with high energy synchrotron radiation (SR-XRF) at the BAMline at BESSY II to determine the concentration of Pt in ancient gold alloys. A HP-Ge detector was used to measure the Pt K-lines excited with an incident energy of 79.5 keV. Data processing was done by subtraction of a Pt free gold standard spectrum from the spectrum of the sample. Depending on the sample composition, the MDL ranges between 40 and 90 ppm. The first results obtained for a small set of gold alloys of different thickness, size and composition showed that high energy SR-XRF is a significant method for the non-destructive determination of Pt in gold.