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Size: 4155
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Size: 594
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
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| [[ https://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Recovery2024/EXC | EXC Recovery(20240404) ]] | [[ https://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Recovery2024/IXC| IXC Recovery(20240409) ]] |
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| * Suspension health check (Takahashi, Ushiba) * A01: Cable check * https://klog.icrr.u-tokyo.ac.jp/osl/?r=28840 -> please update. * Other data are expected to be normal. * A02 Porality Check * impossible to change. so no problem. * Cable disconnection happened, but they were recovered. * Replaced magnets was checked by TF etc. * https://klog.icrr.u-tokyo.ac.jp/osl/?r=29100 * A03 Rubbing Check * ttps://klog.icrr.u-tokyo.ac.jp/osl/?r=29100 * A04: Range and Calibration * The stepper motor range was checked. * Calibration will be the same. * A05: Watchdog Setting: Skip * A06: Height Measurement * Done: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28780 * Setpoint change after the height setting. So the height could be changed. * If we believe LVDT values, we believe the height would not change in the orders of mm. * A08: Calibration:skip * A09: Spectrum(spectra of IM/MN photosensors.) * OK https://klog.icrr.u-tokyo.ac.jp/osl/?r=29102 * OK https://klog.icrr.u-tokyo.ac.jp/osl/?r=29107 * A10: Transfer Function * OK as modeling: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29100, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29106 * Phase delay in R -> R, but no such delay in other DoFs. The data in the air tends to have such phase delay in the DoFs. No influence on IFO/Sensitivity. * BF resonance has changed from 0.3 to 0.6Hz. Assuming this changes, the TF can be explained. https://klog.icrr.u-tokyo.ac.jp/osl/?r=28990, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29106 * We need change the filter shape according to these changes. UGF was set around 0.01Hz. So a fine tune is necessary. * Oplev Check (Yokozawa, Akutsu) * MN: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28905 * TM: Easy to find. SI should be cared. Will be don in Monday. * PF: Easy to find. SI should be cared. Will be don in Monday. * Green flash at REFL and Trans PD * REFL: OK * TMSX: No beam on PD. will be done on Monday. No CCD and PD at present. * Flash can be seen in Tcam. * X-Pcal homeworks * The spec loss at PBS can be comparable with the mysterious loss: Loss of power of ~ 4 %: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29081 * Cleaning inside was done: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29091 *Windows Cleaning * Done: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28976, * Blanck ports: * check whether bolts have holes or not. * Tcam (Yokozawa and ChenDan, and Yamamoto) * Consistent with CAL data: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28830 * Grenn image can be seen. * No problems from the Pcal side. * TMSX optical system (Akutsu and his selected persons) * Baffle PDs (Yokozawa and his selected persons): * Check on Monday. * A power supplier is ready? * NAB, WAB (Akutsu) * NAB: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28757 * WAB: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28758, https://klog.icrr.u-tokyo.ac.jp/osl/?r=28627 * Vacuum system (Kimura-san / Uchiyama-kun and their selected persons) * tie rod adjustment between EXC and TMSX to avoid stress when the only EXC side is pumped down. * Replaced flange * Nasty air parts were replaced. * Vacuum alert recovery after pumping down. * GV interlock will be tried after pumping down. * The broken cc-10 was replaced. * N2 purge is necessary for EXV. * Cryo-system (Kimura-san and his selected persons) * All temp signals are obtained? * Connector change is required for the heat link suspensions. * Cryocon alert to slack after cooling. * No interlock for TMS around the Cryostat. |
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| *** Recovery(202404??) | [[ https://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Recovery2024/IYC| IYC Recovery(20240412) ]] |
KAGRA/Recover
*** Recovery(202404??)
ry2024について、ここに記述してください。