Used matlab to calculate Gaussian fits on 145 GC650 images and 142 GC750 images. These were individual images (no averaging) looking at the PSL output from May 29th 2008. The GC650 and GC750 were looking at a split, but had different exposure values, slightly different distances to the nominal waist of the beam, and were not centered on the beam identically. Mostly this is a test of the fluctuations in the fit from image to image.
Note the mm refer to the size or position on the CCD or CMOS detector itself.
GC650
Mean
Amplitude X center Y center X waist Y waist Background offset from zero
position (mm) position (mm) (mm) (mm)
0.3743 1.7378 2.6220 0.7901 0.8650 0.0047
Standard Deviation
Amplitude X center Y center X waist Y waist Background offset from zero
position (mm) position (mm) (mm) (mm)
0.0024 0.0006 0.0005 0.0005 0.0003 0.00001
Std/Mean x100 (percent)
Amplitude X center Y center X waist Y waist Background offset from zero
position (mm) position (mm) (mm) (mm)
0.6% 0.03% 0.02% 0.06% 0.04% 0.29%
GC750
Mean
Amplitude X center Y center X waist Y waist Background offset from zero
position (mm) position (mm) (mm) (mm)
0.2024 2.5967 1.4458 0.8245 0.9194 0.0418
Standard Deviation
Amplitude X center Y center X waist Y waist Background offset from zero
position (mm) position (mm) (mm) (mm)
0.0011 0.0005 0.0005 0.0003 0.0005 0.00003
Std/Mean x100 (percent)
Amplitude X center Y center X waist Y waist Background offset from zero
position (mm) position (mm) (mm) (mm)
0.6% 0.02% 0.04% 0.04% 0.05% 0.07%
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