Marc, Michael, Abe, Aso

ETMY moved to the absorption measurement setup

Mirror box problem

As reported yesterday, we had a problem with closing the top lid of the mirror box.

Shown below is the magnet protection ring and a vertical pole of the mirror box. The pole was pushed outward by the protection ring making the position of the tapped hole on the top of the pole not aligned with the holes on the top lid.
Now, the sleeve of the pole has a thinner part so that the protection ring does not push the pole. With this modification, we can nicely close the mirror box now.

The thin part of the pole is 2mm thinner in diameter from the other part. The thickness of the sleeve wall was 3mm. With the reduced diameter, the wall thickness is now 2mm.
Fukushima-san of ATC kindly performed this modification quickly.

Preparation of the absorption bench setup

Since the absorption bench is very clouded and our mirror is large, especially when it is mounted on the handling jig, we needed to remove some part of the absorption bench so that we can put the mirror safely on the translation stage. Today, we finished this preparation and we will install the ETMY onto the translation stage tomorrow morning.