The heart of the EOCF is the Vacuum Calibration Chamber (VCC), designed to support the calibration of space-based radiometers, with the highest standards of precision and hydrocarbon-free cleanliness. The quality of the vacuum environment is assured through constant monitoring of trace gas species from 1 to 200 AMU using a quadrupole mass spectrometer. Chamber internal dimensions are 0.8m diam x 0.9m height, with precision articulating table and ports for calibration sources; the Department is considering upgrading the vacuum chamber to make it more suitable as a general-purpose TVAC chamber.
