Mercury test

First mercury tests with the 4m International Liquid Mirror Telescope at AMOS … some videos ”
To view the video, click on the image

14-16 January 2011
Participants : Paul Hickson (UBC), Jean Surdej, Stephan Denis, François Finet, Brajesh Kumar (ULg and AMOS)

Cleaning of the recipient covered with polyurhetane
using some isopropanol
Opening the tank containing the bottles of mercury

Checking the proper adjustment of the masks against
mercury vapors
Mercury is being transferred from the bottles into the 4.1m
mirror recipient
First attempts to close the mercury surface by rotating
the recipient
The mercury surface has been closed and the automatic rotating
air bearing is taking over
Taking some rest after having successfully stabilized the
mercury mirror
Reflection of external objects over the
mercury surface
Performing mercury surface tests with a laser beam

Power failure leads to the disruption of the mercury surface

Second successful attempt to close the mercury surface

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