Following the investigation in the entry #63491, this morning we perfomed a set of noise injections on both laser bench and external injection bench.
We started with the injection on laser bench by means of shaker installed few days ago #63577.
LB NOISE INJECTIONS
ITF locked
DAC channel: ENV_NOISE_CEB_EEroom
Freq. line 17.9 Hz, A=0.1 V, 09:59:55-10:13:57 UTCFreq. line 8 Hz, A=0.7 V, 10:37:20-10:42:46 UTCFreq. line 8 Hz, A=0.6 V, 10:50:58-10:57:20 UTCSecond part of the shift ITF unlocked (INJ standalone)Quiet = 15:35:00 (5’) Freq. line 17.9 Hz, A=0.1 V, 15:40:20-15:48:00 UTCFreq. line 8 Hz, A=0.7 V, 15:49:51-15:58:36 UTCFreq. line 8 Hz, A=0.6 V, 16:00:04 - 16:06:01 UTCColored noise (1-15) Hz: 16:18:27 - 16:23:39 UTC
EIB NOISE INJECTIONS
ITF unlocked (INJ standalone)
(previous EIB injections #61713)
We injected a sine of 0.5Hz frequency (Henk Jan adjusted the cfg file to have the right amplitude by just enabling sine noise button)
| gps start | DOF | amplitude | duration |
| 16:24:26 | z | 10 um | 3 min |
| 16:28:08 | y | - | - |
| 16:33:31 | x | - | - |
| 16:37:46 | tx | 10 urad | - |
| 16:41:26 | ty | - | - |
| 16:44:45 | tz | - | - |
The analysis of these injections will follow.