Reports until 19:23, Friday 31 August 2018
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sheila.dwyer@LIGO.ORG - posted 19:23, Friday 31 August 2018 (43781)
CHARD Y long measurement

Sheila, Georgia, Craig, Gabriele

We have a low bandwidth with our CHARD Y loop, from measurements we have taken so far we should be able to increase the gain, but we have not been able to do this.  Since we think this loop (or DHARD Y) is the cause of our difficulties when we try to increase the power, we decided to make a long measurement of the loop.  

The attached plot shows that this loop should be stable to with a factor of 10 more gain and the boost engaged. The same is also true for a factor of 10 more gain and the boost. 

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