PEM (Center)takaaki.yokozawa - 8:55 Wednesday 22 February 2023 (24091)
Print this reportAcoustic inejction (116 Hz) to PR/IFI areaWe performed the acoustic injection to PR/IFI area. Yesterday, I moved acoustic injection instrument from OMC area to PR/IFI area.
This morning, I performed the 116 Hz acoustic injection. (We detected the up/down conversion in O3GK) Because of safety, we didn't perform the strong acoustic injection, even in this case, we detected some bump around 120 Hz. So if we can reduce the sound in PR/IFI area, we may improve the sensitivity.
The spectrum is placed in https://dac.icrr.u-tokyo.ac.jp/KAGRA/DAWG/Detchar/klog/klog24091
Comments to this report:
tomotada.akutsu - 10:04 Wednesday 22 February 2023 (24097)
Print this report
Thanks. OMG. As mentioned by Ushiba-kun this morning, it might be nice to do shaker injection separately to the IFI/IMM chambers and REFL table independently to study the details of the noise paths.