This document describes the results found from vacuum and cooling tests of NOTCam, performed in the laboratory at IJAF, Copenhagen University Observatory. From the characterization, a recommended handling procedure for a maintenance opening is described, including heating to ambient temperature, opening, closing, pumping and cooling.
The document is written to comply with the requirements in the "NOTCam: La Palma acceptance specification", [Abbott, T. 99a], section 1: "Vacuum integrity and cryogenic performance" and "The NOTCam project: NOTSA/IJAF/CUO Contract Addendum", [Abbott, T. 99b], sections "2: Dewar contamination", "3: Dewar cold testing" and "4: Operational pumping and cooling procedure"