CAL group
We did the calibration measurements.
Estimated parameters taken while visitors were present are as follows.
H_etmxtm = 3.850142293e-14 @10Hz ( 0.52% from previous measurements)
H_etmxim = 1.621508136e-14 @10Hz ( 3.2% from previous measurements)
Optical_gain = 2.126800024e12 ( 0.63% from previous measurements)
Cavity_pole = 18.183601559 Hz ( -0.16% from previous measurements)
Previous values are listed in klog#34310.
Fig. 2 and Fig.4 shows the ratio of the sensing functions estimated.
Post-tour measurement results (inside the mine) are as follows.
H_etmxtm = -3.830386471e-14 @10Hz ( -0.51% from above measurements)
H_etmxim = -1.565605347e-14 @10Hz ( -3.44% from above measurements)
Optical_gain = 2.127919074e12 ( 0.05% from above measurements)
Cavity_pole = 18.267333924 Hz ( 0.46% from above measurements)
All detected changes are coming from the planned commissioning activities.
- Changes in foton Fig.1 are related to klog#34393 (k1calcs) and klog#34386 (k1omc).
- Changes in guardian (Fig.2) are related to klog#34386 (k1omc).
- Changes in SDF tables shown in Fig.3 are related to klog#34393 (k1calcs), klog#34386 (k1omc), and klog#34391 (k1calex, k1caley).
- No changes in the model (Fig.4).
As a result of our discussion in the CAL group, we decided not to update the line tracking parameters this time.
This line tracking is for online use only and does not affect the LL.
Finally, I raised CFC_LACTCH and IFO guardian moved from CALIB_NOT_READY to READY.
The parameters were updated based on the results from `0627/1606`.
From the current results, it is assumed that the influence of visitors is minimal (at least, no variations larger than the weekly fluctuations were observed).
Time stamp of the visitors(27+2 pepole) who entered center preroom and xarm.
(Monitored with Ikeda-san.)
15:00? center preroom
15:22 center parking area
15:24 Xarm in
15:30 Xarm out
15:30 out of mine
15:40 Mine shutter closed