Hi all,
Further to my questions about running qualitative maps a couple of weeks ago, I set up and ran a garnet routine, mapping Si, Al, Ca, Fe, Mn, Mg, Ti and Y. I calibrated at 20kV and 20nA with a spot beam using MAN backgrounds. The mapping was done at 200nA current with a 5 micron pixel and 50msec count time, and 2 passes on a couple of our 5 spectrometers. The run went well, and the processing in CalcImage completed and I got the quant element maps (for example, see Mn, attached).
However, in the CalcImage log window (see attached,partial) where all the analyses are found, I see they are all complete garbage. The beam did scan over some epoxy as the garnet was at the edge of the mount, and also there are a lot of inclusions and other phases present, but I don't think I got one decent garnet analysis.
Now, I admit the MAN fit was not stellar, but I was expecting something approaching a garnet analysis in each pixel in CalcImage.
Is the 5 micron pixel a contributing problem? Where did I go wrong?
Thank you,
Katherine