Download SIMNRA User's Guide - Max-Planck

3. Using SIMNRA
The file format is as follows: The first line is a comment line which contains information
about the contents of the different columns. The first column is the channel number, the
second column contains the experimental data (This column is set to zero if experimental
data are not available), the third column contains the simulated data (This column is
set to zero if simulated data are not available). If the Element spectra option in Setup:
Calculation... is checked, then the next columns will contain the simulated spectra for
each element in the target. The columns are separated with blanks. The columns are
separated by tabs.
• RUMP: Read RBS File...: This menu item allows to read a binary RBS-file produced by
RUMP containing experimental parameters (Type of incident particles, incident energy,
scattering geometry, etc.) and spectral data.
Note 1: RUMP stores the description of the sample and the absorber foil in sample
description files (*.LCM). You can read sample description files with RUMP:Read Sample
Description File....
Note 2: The RBS-file may contain only one experimental spectrum. Compression level 3
(zero compression) is not implemented. See section 3.14 for more details.
• RUMP: Read Sample Description File...: This menu item allows to read a sample description
file produced by RUMP or the IBA data furnace NDF. The default file extension of sample
description files is *.LCM.
Note 1: RUMP stores the description of the sample and the absorber foil in sample description files (*.LCM). The experimental parameters (Type of incident particles, incident
energy, scattering geometry, etc.) and spectral data are stored in files with extension
*.RBS. You can read RBS-files with RUMP:Read RBS File....
Note 2: SIMNRA supports only a subset of the RUMP sample description commands.
Especially the RUMP commands Equation, Species and Fuzz are not supported. If your
sample description file contains these commands, they will be neglected and a warning
will be shown. See section 3.14 for more details.
• RUMP: Write Sample Description File...: This menu item allows to store the structure of
the target and the absorber foil in a sample description file in RUMP format. The default
file extension is *.LCM. These files can be read by RUMP or the IBA data furnace NDF.
Note: SIMNRA allows to define a correction factor for the stopping power of each layer
for each ion species. The correction factors are not stored in the sample description file.
• Print...: This menu item will print all parameters of the calculation and plot the experimental and simulated curves. See also the print preferences on the Options: Preferences
tab.
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