This afternoon we remove the Optris 640i thermocamera from the WE viewport (see #66757) and installed it temporarily on the same viewport (ZnSe viewport of the HR surface) of the NE tower.
Here are the NE payload images of the thermocamera:
Fig. 1: ITF unlocked;
Figs. 2 and 3: ITF locked in CARM_NULL;
Compared with the WE payload, the spot seen on NE mirror is much less centered and seems to be fainter as well. A more precise estimation will follow.
The thermocamera has been removed from the NE tower at ~11.15, in order to be reinstalled at WI this afternoon.
To be noted: the lamp near the viewport (see Fig. 1) was reinstalled avoiding to put it into contact with the viewport itself.
As discussed yesterday at the Commissioning meeting, the Optris 640i thermocamera has been temporarily installed in the east ZnSe WE viewport of the HR mirror surface. The installation took place this morning around 11 a.m. LT. We plan to start making measurements as soon as the ITF recovery begins to evaluate the point absorber status of the new WE payload.
Here are the images of the new WE payload (old NE mirror) during the ITF recovery of today.
- Fig. 1: image of the thermocamera with the ITF unlocked;
- Fig. 2: image of the thermocamera with the ITF locked in CARM_NULL.
