aLIGO LHO Logbook

H1 INJ (DetChar, INJ)

christopher.biwer@LIGO.ORG - posted 12:51, Thursday 12 November 2015 - last comment - 13:14, Thursday 12 November 2015(23346)

starting PCAL tinj hardware injection test

Chris, Adam

We are going to start testing using tinj with the PCAL hardware injection filters.

Comments related to this report

christopher.biwer@LIGO.ORG - 12:53, Thursday 12 November 2015 (23347)

Link

The schedule has been updated with the following:

1131397639 1 1.0 coherentbbh0_1126259455_
1131398719 1 1.0 coherentbbh0_1126259455_
1131399799 1 1.0 coherentbbh0_1126259455_

christopher.biwer@LIGO.ORG - 13:14, Thursday 12 November 2015 (23351)DetChar, INJ

Link

When awgstream was invoked LLO intent bit turned off. LHO intent bit remained on.

We think LLO may have turned off the intent bit because CALEX was not on the exclude list, ie. intent mode should ignore excitations in CALCS or CALEX.

TJ checked that and CALEX was on the exclude list for LHO.

The injection scheduled for 1131397639 did go through at each detector.

We removed the last two injections from the schedule because of this issue though.

Also Shivraj was with Adam and observed that a high frequency calibration line is on in PCALX. This decreases the range we can inject signals. We should consider if we need to turn this line off during hardware injections.

Testing is now complete.