Dark gray buttons are ON; Light gray buttons are OFF
The main GeoPIXE window is where you will look at your final XRF map images (.dai files).
The Sort EVT window allows you to convert raw data (data.0, data.1, etc.) into images (.dai files), with the help of many accessory files (more detail on those in the tutorial videos)
The Spectrum Display window allows you to examine the actual XRF spectra collected at each detector pixel. You will use it a lot when calibrating and fitting the spectra
These windows are all linked, meaning that what you do in one window can affect what is displayed in the others. For example, data processing in the Sort EVT window causes an image to be displayed in the main GeoPIXE window. As another example, if you ask GeoPIXE to look at the spectra from a certain image region, these will be shown in the Spectrum Display window. All this to say, dont be surprised if you see updates to windows other than the one you think youre working in.
These tutorials consist of 2-4 minute screen capture videos plus related notes. Red links are placeholders for tutorial pages that don't exist yet.