Transmission Function
Transmission Function
Transmission Function Correction Equation (D, Shirley) used in SDP v8 Software
Comparison of Scofield Cross-sections to Sensitivity Factors used in Multi-Pak Software
Assuming that the Scofield values are correct, then the difference between these SFs is, to a large extent, due to the Transmission Function of the PHI Instrument.
Inelastic Mean Free Path (IMFP) Values
have a direct effect on atom % results (quantitation) and are an integral part of any atom% calculation even though it is often hidden in the software calculation.
Photo-Emission Process and Photoelectron Scattering define IMFP values
Scattering of Photoelectrons Produces Background and Reduces Main Peak Intensities
Graphic Comparison of IMFP values from Pure Metals and Pure Oxides
IMFP-TPP2M Software (produced by S. Tanuma and S. Tougaard)
used to produce IMFPs shown in Periodic Table shown above
NOTE: This FREE software is old, but will run on Windows 10
(Click on Title of Image to download IMFP-TPP2M software in a Zip file.)
Trendline Establishes/Defines the Exponent used to correct for IMFP
The Exponent Factor (i.e. 0.6659) that is used to correct Peak Intensities in Atom % Calculations as a Function of KE of Photoelectrons
Data were Calculated for only Peak BEs from a software produced by S. Tanuma
Photoelectron Emission Intensity versus Depth of Origin
(r.f. IMFP C(1s) = 33 Ang)
Transmission Function of Thermo K-Alpha XPS
Information in Avantage Software explaining How Transmission Function is measured for K-Alpha XPS system
