Objective
The AES work undertaken in Project 193 allows analysts working in the direct mode to agree on absolute peak intensities to within + 3%. However, for the differential mode this agreement degrades to worse than + 10 % even when operating under reference conditions. Since many instruments are only capable of working in the differential mode, it is necessary to improve the traceability of the intensity scale in this mode and to establish procedures which relate the scale established under reference conditions to those under other operating conditions. This the project is attempting to do via the production of a reference material which will allow traceability to an absolute AES intensity scale which is comprised of peaks throughout the spectrum which correspond to known intensities irrespective of the operating conditions.
RESULTS
The development of a fully instrumented electron spectrometer to measure absolute spectral intensities for AES and XPS significantly changed the approach taken in this project. Instead of considering the relative energy-intensity response functions of the spectrometer under different operating conditions it was possible to consider tha problem in terms of absolute intensities.
The reference material consists of a copper substrate containing a gold insert. Using this material 5 laboratories demonstrated with a range of cylindrical mirror analyzers and concentric hemispherical spectrometers that it is possible to produce absolute peak intensity calibrations in the AES differential mode to within +/- 4.4%. This should be compared to the 10% achieved earlier for relative intensity calibrations and should facilitate accurate comparisons between data from different instruments.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Programme(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
TW11 0LW Teddington
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.