Using the M4 TORNADO Software   
68
 
User Manual
 
Object  Description  Hints 
 
Spectrum matching - Searches 
volumes for similar spectra 
See section 6.3.3 
 
Spectrum arithmetic  Adds, substracts and multiplies 
spectra 
 
Auto-scales spectrum window 
according to foreground spectrum 
Scales the displayed spectrum in 
the foreground for full intensity 
and energy, preset range can be 
set for the energy scale (right 
mouse click)  
 
Edits spectrum display settings  Comparable with spectrum 
settings in the user interface 
 
Recycle bin  Deletes the highlighted spectra 
from the list 
Functions below the spectrum display – Display of results 
 
Display of spectra results 
The  icon at the beginning of 
the line means that this spectrum 
is stored. 
If a spectrum is highlighted the 
corresponding measurement 
point in the sample image will be 
highlighted too. 
 
Selects all spectra for display   
 
 
 
 
Changes X-axis units 
Toggles between energy in keV 
and channel display. Double-
click on keV or channel to 
introduce an energy range. 
 
Selects spectrum for display  Highlighted spectra (yellow line in 
spectra list) will always be 
displayed, whether selected or 
not. The spectrum name can be 
changed by clicking on the name. 
The spectrum colour can be 
changed by clicking the 
downward-facing arrow.