The following page provides a number of useful downloads for general nonprofit use by the electron microprobe community
CalcZAF/Standard: Free EPMA Calculation Utility (download installation/update)
To update CalcZAF/Standard simply use the Help  Update CalcZAF menu! For more information on using CalcZAF and Standard, please visit the CalcZAF and Standard user forum where you can read questions, answers and discussion regarding the CalcZAF and Standard EPMA utilities (and please feel free to join the user forum if you have not already, so you can post your own questions and discussion). CalcZAF is intended for calculations on unknown compositions (for matrix corrections), while Standard performs calculations on known compositions (for searching, matching, modeling).

CalcZAF/Standard is an excellent offline EPMA calculation utility for both teaching and research.
 Extensive technical documentation is included with the CalcZAF/Standard download and also available here.
 Online data reference tables include: spectrometer position, emission lines, absorption edges, fluorescent yields, NIST xray tables and mass absorption coefficients. Quantitative modal phase analysis based on standard compositions.
 Full featured standard database utility with kfactor and xray intensity modeling. Additionally Standard.exe (which comes with CalcZAF) is automatically installed with the PENEPMA 2012 Monte Carlo modeling software (download Penepma12 updates manually here) to allow advanced operation with an easy to use Graphical User Interface (GUI) for spectrum simulation and secondary fluorescence phase boundary modeling. See below for installation instructions.
 Xray and electron range modeling. Support for thin film and particle quantitative analysis (based on Armstrong code). Calculate error distribution histograms from experimental kratios and BenceAlbee alpha factor compositional plotting. Calculate detection limits for given conditions or conditions for given detection limit.
 Complete selection of CITZAF absorption, atomic #, etc. corrections. Heinrich, Henke, FFAST and/or Empirical mass absorption coefficients. Compositional searching and matching from multiple standard composition databases. Import/export raw Kratios or count data.
 Standard composition reference databases (NIST, Deere, Howie and Zussman, Dana's ore minerals). Calculate any combination of elemental, oxide, element by specification, difference, relative to stoichiometric oxygen or any element. Formula, atomic percent, mineral endmember calculations.
CalcZAF/Standard Installation and Update Notes:
To install CalcZAF simply download the CalcZAF.msi file and double click it. The setup wizard will take you through the installation process. It will automatically be installed to the C:\Probe Software\Probe for EPMA folder, or another location if you prefer. Penepma 2012 is automatically installed by CalcZAF.msi.
Once installed on your computer, CalcZAF can be automatically updated to the latest available version simply by using the Help  Update CalcZAF menu.
The CalcZAF installation comes with CalcZAF.exe for modeling of unknown compositions using ZAF, PhiRhoZ, and Alpha Factor analytical models and also Standard.exe for modeling of known compositions and also easy to use GUIs for Penepma and Penfluor/Fanal MonteCarlo modeling.
CalcZAF also supports fast MonteCarlo calculations using polynomial alpha factors derived from Penepma Monte Carlo kratio calculations. A list of fast Monte Carlo binaries already calculated can be found here. These alpha factor parameters provide high speed Monte Carlo calculations for arbitrary compositions.
To perform secondary boundary fluorescence calculations using the Penepma 2012 GUI, run the Standard.exe program and click the Analytical  Penepma (Secondary Fluorescence Profile) Calculations menu.
Penepma 2012 Update Notes:
Penepma 2012 is automatically installed by the CalcZAF.msi installer file. To automatically update the Penepma files, simply use the Help  Update menu in CalcZAF. Or to manually update your PENEPMA 2012 folder simply download the PENEPMA12.ZIP file and extract all files to the Penepma12 folder and overwrite the existing files (usually C:\UserData\Penepma12).
Additional precalculated compounds are available here (don't waste time rerunning these 10 hour MonteCarlo calculations yourself, if we already have!). Simply download the Compounds.zip file and extract the PAR files to the C:\UserData\Penepma12\Penfluor\Compound folder to utilize these newly calculated compounds. A list of the currently available compounds is here.
For modeling photon energies below 1keV you will need to recalculate PAR files after editing the "PenepmaMinimumElectronEnergy" keyword in the [software] section of the Probewin.ini file to an appropriate value such as 0.5 keV for oxygen Ka or 0.2 keV for carbon Ka as seen here:
[software]
PenepmaMinimumElectronEnergy="0.2"
For a ZIP file of previously calculated PAR files for low energy modeling (500 eV and 200 eV), download this file.
For easy extraction of kratios for Penepma unknown calculations, be sure to download this ZIP file containing a number of bulk pure element calculations at 10, 15 and 20 keV. Extracted to the C:\UserData\Penepma12\Penepma folder, these pure elements can be utilized to extract kratios from the Penepma Batch Mode window.
Penepma 2016 Notes:
Penepma 2016 is almost identical with Penepma 2012, except that it provides support for emission lines of Li, Be and B. However, Penepma 2016 is not distributed with CalcZAF/Standard because the physics database files for Penepma 2016 are *not* compatible with the Penfluor/Fanal secondary fluorescence application files. Therefore Penepma 2016 is a separate download (here) which can be unzipped and placed in a folder named UserData\Penepma16, if desired for Li, Be and B emission calculations. To utilize the Penepma GUI in the Standard application one should edit the following enties in their Probewin.ini file:
PENDBASE_Path="C:\Userdata\Penepma16\Pendbase"
PENEPMA_Path="C:\Userdata\Penepma16\Penepma"
PENEPMA_Root="C:\Userdata\Penepma16"
PENEPMA_PAR_Path="C:\Userdata\Penepma12\Penfluor"
Probe For EPMA User's Guide and Reference Manual (download)
See our technical reference manual which is only part of the detailed and complete documentation provided with Probe For EPMA.
All our documentation is written by experts in the electron microprobe community with an emphasis on solving real world problems in EPMA.
Casino Monte Carlo Software (download v. 2.4.2) (download v. 2.4.8)
Casino is a freeware program for quickly calculating and displaying electronsolid interactions for a variety of beam conditions and sample geometries. It was developed at the University of Sherbrooke, Quebec and McGill University, Canada by Raynald Gauvin, Hendrix Demers and Philippe Pinard.
To install Casino simply extract all files in the ZIP to a folder, e.g., C:\Casino, and run the Casinov242.exe (for v. 2.4.2) or Wincasino2.exe or Wincasino2_64.exe (for v. 2.4.8 32 or 64 bit).
Casino has been renamed to "MC XRay". To download the most recent version use this link.