(Work on 25th, detail report)
[Takahashi.R, Dan.Chen, Hirata]
This is the detail report of as Takahashi-san's report in klog36657.
>2.Checked the height of the TM/RM
The center of the mirror was 2mm higher than the target on the SRM chamber.
1.We set up two laser levelers: green one on the +X side and red one on the -X side.
2.The green laser leveler was aligned with the mirror height target on the SRM chamber(pic1). The scratch line on the +X side is 1 mm above the green laser level line(pic2).
3.The red laser leveler was set on the -X side. The scratch line on the -X side is 1 mm above the red laser level line(pic3).
4.The height difference between green laser leveler and red laser leveler was 2 mm.(pic4,5)
Conclusion: The +X scratch line was 1mm higher than target, and the -X scratch line was 3mm higher than the target. Therefore, the center of the mirror was 2mm higher than the target on the SRM chamber.
>3.Released the breadboard and checked the height.
The result was almost the same as previous measurement.
1.Two 5 kg masses were left in the position where the mid-size baffle had been installed. (Mid-size baffle were 4.94kg and 4.931kg. see klog36531) Those masses were fixed by M6 studbolts and nuts.(pic6)
2.We checked the height of bread board using laser leveler aligned with the target on the SRM chamber. The measurement point was approximately the same as in the previous measurement.klog36531
3.The result are as follows.
・+X side (Green line) : 383.5mm.(pic7)
・-X side (Red line) : 380.0mm.(pic8)
*Note: The previous measurement values reported in klog36531 were reversed. Sorry for the mistake. Please check the pic7 and pic8 in klog3631)
4.We confirmed that nothing was blocking the oplev beam.(pic9,10)
>5.Checked the cables at the feedthrough flanges.
We checked in-vacuum cable connection. The result are attached.