Cooling a Digital Camera?

thusson asks: "I work at a lab doing intrinsic signal imaging of cat and mouse visual cortex (brains). We are using a Dalsa 1M60P camera, and we want to cool it about 30-50 degrees C to improve picture quality by reducing noise. Does anyone have any suggestions about how to do this? So far, heat sinks have helped but only by a few degrees. I figure the overclocking community is a good place for novel ideas."