Reports until 15:29, Monday 05 November 2018
H1 TCS (AWC, TCS)
daniel.vander-hyde@LIGO.ORG - posted 15:29, Monday 05 November 2018 - last comment - 14:22, Tuesday 06 November 2018(45022)
IR beam interference on ITMX HWS camera

TVo, Dan B., Danny V.

      In the ITMX HWS contour/gradient plots we notice a beam introduced onto the Hartmann camera while the IFO powers up (please see attached images). We performed a couple of tests to make sure it was not a stray Hartmann beam or oplev beam and narrowed it down to what we think is some weak IR light. Currently working towards a solution to this. 

 

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daniel.brown@LIGO.ORG - 14:22, Tuesday 06 November 2018 (45064)