Civil work and facilities progress report
The aluminizing vacuum chamber and the cleaning unit arrive at OAJ after the final acceptance tests at the factory.
Final assembly of the OAJ aluminizing vacuum chamber
After having passed successfully the preliminary and final design reviews, the manufacturing of the OAJ aluminizing vacuum chamber and the procurement of its subsystems started in spring 2015. The vacuum chamber is the system designed to realuminize the mirrors of the OAJ telescopes every time it is necessary. In November 2015 the chamber is fully assembled in factory, as it can be seen in the figure. The acceptance tests are expected to be conducted in December 2015 - January 2016.
JAST/T80 building, with its 6.2 m diameter dome, is completed with an annexed lobby for maintenance and storage tasks. JAST/T80 is connected with JST/T250 platform by an access road.
View of the T80 building, the monitor enclosure and the general services plant.
Main JST/T250 building, maintenance annex and mirror alumnization area (exterior finishes still pending).
The JAST/T80 building is isolated with galvanized steel panels to minimize the thermal inertia of the main concrete structure.
The monitor building consist of a semicilindrical enclosure made of steel with two openings which can open independently.
General installations and supplies are finalised inside the JAST/T80 building.
Operators working on the fine tuning of the monitor enclosure.
Underground tunnels connect all the buildings at the OAJ, both for human use and the optimal maintenance of the installations.
The JAST/T80 dome, a 6.24m diameter dome manufactured by Ash Dome (Illinois, EEUU) is assembled on top of the JAST/T80 building.