The MOSS camera on H-1NF

We have configured the modulated optical solid-state spectrometer, a recent ly developed high-resolution instrument for plasma Doppler spectroscopy, as an imaging spectroscopic camera. The camera features a wide field of view (similar to 10 degrees), large aperture (40 mm), and high spectral resoluti on nu/Delta nu greater than 10 000. The camera installation on the H-1NF He liac is described, together with the steps in the design process, including field widening. Calibration and characterization of the instrument functio n is discussed and the instrument performance is illustrated with some samp le results of spatially resolved ion temperature measurements in H-1NF. (C) 2001 American Institute of Physics.