
X-Ray Fluorescence Analysis
SLICE
With SLICE, users have access to an advanced data archiving tool, allowing spectra, acquisition parameters, quantitative analysis results, text and optical images to be seamlessly linked. A subsequent database search (by keyword, composition, acquisition date, instrument parameters) allows the many thousands of spectra within the existing database to be interrogated, quickly and simply.
It is a widely used tool for forensic scientists, where virtually any material can be encountered (explosive residue, paints, glass, metals/alloys, fibres), and it is now being extended to contaminant analysis in a wide range of industries, including pharmaceutical, automotive, electronics and semiconductor.
Key SLICE functionality
- SLICE import of EMSA format spectra, and accommodates TIFF and other text based files.
- Multiple images may be associated with each spectrum.
- Clicking the thumbnail image displays the full-size image in a separate Browser window.
- Spectra appear in the Main window, and are processed from this window
- The Search window allows the user to select the criteria utilized in the spectral retrieval and comparison using standard SQL.
- The SLICE Results window shows the comparison of similar x-ray spectra.
- The "Degree of Fit" and "Group Membership" parameters provide a measure of to what degree the unknown spectrum is consistent with standard spectra stored in the database, and a measure of how well the spectrum fits within the grouping.
- From within the SLICE Results window, spectra can be incrementally overlapped to aid in visual verification.
- The number of spectra can be chosen, and the spectra can be panned and zoomed to aid in the verification process.
- A unique method of dynamically normalizing the spectra at the position of the cursor greatly aids in the comparisons.
- The cursor may be "popped" from peak to peak or smoothly scrolled through the spectrum with dynamic normalization, making comparisons even easier.
- Multiple KLM markers can be used in either the Main window or the Results window to further aid in comparing spectra.
- Spectra may be displayed in the log, square root, or linear mode


