rana.adhikari@LIGO.ORG - posted 16:44, Tuesday 19 June 2012 (3175)
H2 ALS Table-Chamber ducting installed
Rana, Keita
We took an ISC table panel with a new aluminum flexible duct on it down to the end station. We removed the old panel and installed this new one. The duct is good, but getting it on to the viewport was a challenge since the ducting is not so flexible and its diameter is fairly snug with the flange. Would be easier to install if it was ~1/2" larger in diameter. Attached is an image of the installed tube.
We also found that the view of the ETM from the optical lever viewport is very nice. It would be good if we could use that one for the ETM face cam during OAT.
Also, in lieu of having a true TransMon beam for OAT, perhaps we can setup a scatter monitor PD on an ITM chamber viewport as Bill Kells used to do: a 2" diameter lens and a high gain Thorlabs Si PD with a short pass filter.
Images attached to this report
