Spectral characterization of the HIRDLS flight instrument from pre-launch calibration data

These data were obtained during the prelaunch calibration of HIRDLS at the University of Oxford (fall 2002). A monochromator, equipped with a controllable diffraction grating, was used to produce monochromatic light for these tests.

The monochromator was housed, along with HIRDLS, in a large vacuum chamber. The monochromator was also equipped with a polarizer, which allowed data to be acquired at known polarizations for each channel. A calibration detector, with a flat spectral response, was used to measure the output from the monochromator.