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Reports until 18:00, Tuesday 05 June 2018
H1 PSL
jason.oberling@LIGO.ORG - posted 18:00, Tuesday 05 June 2018 (42346)
PSL Work Today

In addition to the work logged by Keita here and here, and the cooling work logged by Jeff here, we performed the following:

-Physically installed the 70W amplifier external shutter.  The shutter has not been connected electrically yet, we will do that once we can turn the laser and PSL Control Box OFF.  Since the shutter is not connected electrically, the shutter flag was temporarily removed (as the shutter's default position is CLOSED).  Once the shutter has been connected electrically and proper operation confirmed, the shutter flag will be reinstalled.  See attached pictures.

-Removed the power supply cable for the existing IO_AB_PD3, as the connector is needed for the new power cable for the large-area PD that will be installed as the new IO_AB_PD3.

-As part of the bullseye PD installation, we had to swap the HR mirror that directs a pick-off beam into the PD for the 70W amp power watchdog with a beamsplitter.  As a result of this, we re-calibrated the watchdog PD for proper watchdog operation.

-Had Bubba look at the Laser Room door.  Over the last several weeks the door has become difficult to move; it is likely we need to have the manufacturer take a look at it.

Images attached to this report
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