Reports until 19:44, Wednesday 10 December 2014
H1 ISC
eleanor.king@LIGO.ORG - posted 19:44, Wednesday 10 December 2014 (15547)
More scattering images of ETMy

Dave O, Elli, Kiwamu

We have improved the dynamic range of the scatter pictures we took last night.  We did this by:

-Changng analog gain on the camera from 1023 to 100.

-Changing from 8 bit to 12 bit enconding

-Averaging over 100 images rather than just using one.

 

We now have a much clearer picture of scattering off of ETMy.  We took an image of ETMy with IR locked and green misaligned.  We then subtracted a background image with both green and IR misaligned.  We plotted the images using log10 of the intensity.  We have also included the same image plotted with linear intesnity, which can be compared directly to last night's image. 

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