Equipment and results of test of cooler for electro-optical transducer
As is known, one of the various methods for increasing the sensitivity of electro-optical transducers is cooling of its photocathode, which follows from the relationship for thermoelectron emission of photocathodes. At present the thermoelectric method is the most promising, in connection with a low time constant, small overall size and weight characteristics, unrestricted life expectancy, noiselessness, simple control of cooler, etc. Existing conjunctions of the thermopile with the photodiode, as the result of which their use is difficult because of a number of shortcomings. In connection with this, for the purpose in hand, the goal was to move the thermopile and the tube to a distance from one another. During development of the system of heat transfer from the photocathode of the optical transducer to the cooler - the cold junctions of the thermopile, preference was given to closed evaporate systems of heat transfer (evaporative thermal siphons - ETS) with the use of an intermediate heat carrier.
USSR Rept Electron Elec Eng JPRS UEE
- Pub Date:
- May 1984
- Heat Transfer;
- Thermodynamic Properties;
- Electronics and Electrical Engineering