James Willis's XRF poster

The three free XRF posters offered by Professor James P Willis (James Willis Consultants cc, South Africa) have become one of the most popular, high-impact topics in the XRF-L mailing list. His posters are as follows: (i) The WDXRF spectrometer, illustrated with appropriate wavelength scans and pulse height distributions, (ii) Some factors affecting XRF sensitivity (Kα lines Sn to Na), and (iii) Theoretical intensities for Sn, Cu, Ti, K and S K lines excited by an end-window Rh tube operating at 60, 50, 40, 30 and 25 kV and 4kW. Information for downloading the PDF files is available at the Web site, http://xrfguidelines.co.za/