The distance from chamber window to spectrometer window on the left side is aprox. 17 inches. This does not include the window deflection on the target or the spectrometer due to vacuum deformation.
The target chamber window thickness for right side .012 2024 aluminum
The distance from chamber window to spectrometer window on the right side is aprox. 18 inches. This does not include the window deflection on the target or the spectrometer due to vacuum deformation.
Spectrometer window thickness is .007 of kapton