I will set up blackout curtain near the cryostat optical table to section off the back side of ATC lab (figure-1). The plan is to move the long Al bar closer to the AC unit and hang the curtain on the entire length of the rod (figure-2). I measured various dimensions for this work.

During this work, I noticed the items on the optical table were moved. If you move stuff on the table, an email or verbal confrimation would be appericated.