Philip Covington wrote: > For Mercury? > > <http://www.ociw.edu/instrumentation/ccd/imacs/docs/ICG_Brochure.pdf> > > Nah. The Hypres stuff runs at 1 degree K. Liquid Helium or nothing. They will sell you a space qualified Stirling cycle cooler the size of a large beer can, but they won't tell me how much that costs, either. :-) --- Graham / KE9H == 1232114517.0