F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
341/27
F25B 21/02 (2006.01)
Patent
CA 1169138
TEMPERATURE STABILIZATION SYSTEM D#76,297-F ABSTRACT OF THE DISCLOSURE A radiation detector assembly is enclosed in a heat pipe which is positioned in a dewar flask. A thermo-electric cooler is joined to one end of the heat pipe. The heat exhaust of the thermo-electric cooler is communicated to a heat dissipation device in the form of a fin assembly. A thermistor senses the temperature at the heat pipe. When the thermistor indicates a temperature in excess of that corresponding to a reference signal, a control singal is produced by a control device to cause a power source to operate the thermo-electric cooler to remove heat from the heat pipe to the fin assembly. The vacuum within the dewar flask effectively limits the en- vironmental heat passing to the heat pipe to radiant heat. The detector assembly and temperature stabilization system may extend to the interior of a conduit or other housing containing material whose radiation is to be detected, while the fin assembly is exposed to the atmosphere. In particular, the temperature stabilization system may be used in conjunction with a detector comprising a scintillation crystal optically coupled to a photomultiplier tube in an environment which would otherwise diminish the performance of such a detector by raising its temperature.
348118
Peelman Harold E.
Richter Albert P. Jr.
Smart & Biggar
Texaco Development Corporation
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