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VIS (IMM)

ryutaro.takahashi - 20:30 Tuesday 18 May 2021 (16773)

IMMT suspension

[Takahashi, Sato, Ito]

We investigated the condition of IMMT suspensions.

IMMT1

Handling bars (Mikoshibou) can be attached to Y+ and Y- directions of the suspension frame.
Access flanges (X+ and Y-) have only 400mm in diameter. It is difficult to lift up the frame by our hands with the handling bars.
Jacks attached to the frame using the M12 screw holes for the handling bars are necessary to lift up the frame.
To keep the horizontal position of suspension frame, it is better to guide the frame from four sides.

IMMT2

Stop screws used in the MCo suspension is available to push the frame in slithery.

Images attached to this report

Comments to this report:

ryutaro.takahashi - 21:03 Tuesday 01 June 2021 (16922)

[Takahashi, Akutsu, Yano, Tanaka]

We investigeted the IMMT suspensions again.

IMMT1

IM was tilted to the pitch direction.
Though the IM was not touching the magnets, the gaps in X+/- side were small (It was difficult to take a photo). The gaps in Y+/- side were large enough (see photos).

IMMT2

The gaps in Y+/- side were large enough (see photos). There was no gap in X- side (It was difficult to take a photo).

Images attached to this comment

ryutaro.takahashi - 20:51 Wednesday 02 June 2021 (16944)

I checked the gaps in X+/- side with the fiber scope. The gaps were even in IMMT1. The gap in X- side was small but not touching in IMMT2.

Images attached to this comment