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The 2mm bolometer

DIABOLO which currently employs two linear arrays of 3 pixels, centred respectively at tex2html_wrap_inline1284 1.2 mm and 2.1 mm, respectively, is designed for detection of weak and somewhat extended sources. The instrument which was used successfully at the 30m telescope last winter, is described by X. Désert elsewhere in this newsletter. The level of integration of the instrument into the 30m telescope's standard control and acquisition system is minimal, however, complicating the use of this instrument. Obervers interested in using DIABOLO should contact X. Désert at the Observatoire de Grenoble for arranging some form of collaboration.