cooling system

options:
 - a $100 3 stage peltier
 - the existing peltier
 - liquid nitrogen.

Any of the peltiers can have a liquid cooling system at the output
- I bet keeping the hot side of the peliter submerged in ice water would drop the CCD by 20 degrees.

Need a thermocouple temperature sensor at the head and a regulator (I have this - easy to wire to the peltier).
Remember we need constant temperature.


Palomar thermoelectric cooling system
 - a 3-4 stage Peltier module that is then cooled via a radiator and fan.
 - might be able to take the Peltier module, remove the fan, and add a liquid cooling stage.
 - some camera electronics we might be able to use from their system

Venezuelan Observatory cooling system

They use a closed cryogenic loop called FTS System, model RC210
and the transport liquid is Flutec PP50 (¡no CFC!).
- They are able to reach temperature under 80ºC.
- The lines work at very low pressure (~50mT) to prevent condensation.

They use 3 YIC 16(4*4) CCD's 2048*2048 for a total of 67Mpixel.

They are located in Llano del Hato, Mérida, Venezuela.

HOMEPAGE:  www.cida.ve

www.cida.ve/schmidt.html
www.cida.ve/camarayic.html

(thanks to Greg)