In the above post we attempted to determine the spectrometer orientation angles for JEOL EPMA instruments. I'm hoping that someone out there has a JEOL schematic which would provide the actual angles for the WDS spectrometers.
Based on rotation angles with 0 degrees at the top (North or back) of the instrument and starting with the lower left spectrometer (which we refer to as a Type 1 JEOL spectrometer orientation) and proceeding clockwise we obtain these rough numbers:
JEOLSpectrometerOrientationType=1
SpectrometerOrientations1="250"
SpectrometerOrientations2="300"
SpectrometerOrientations3="350"
SpectrometerOrientations4="40"
SpectrometerOrientations5="100"
JEOLSpectrometerOrientationType=2
SpectrometerOrientations1="250"
SpectrometerOrientations2="100"
SpectrometerOrientations3="300"
SpectrometerOrientations4="40"
SpectrometerOrientations5="350"
Does anyone have better numbers for these orientations?
![](https://probesoftware.com/smf/gallery/1_03_04_22_11_24_39.jpeg)
![](https://probesoftware.com/smf/gallery/1_03_04_22_11_25_05.jpeg)
Much thanks to Julien Allaz for these very pretty schematics!