[Takahashi, Ushiba]

We adjusted the height of ITMY.
The reference of the height is target marker (T), which is the average of beam duct centers of IYC (fig1).

I set rulers on the target marker (55 mm), and red leser leveler at 100 mm (fig2).
I also set another ruler inside the cryostat and the position of red light from the leveler is 231.5 mm (fig3).
So, I set green laser leveler at 186.5 mm (fig4)

Figure 5 and 6 shows the initial magnet position with green laser reference.
So, we moved suspension dow by 3 mm, and checked magnet position again (fig7 and 8).
The current position seems good.