The Cryogen-free Measurement System. CryoAdvance, Inc.

Cryogenic cooler stabilizes and controls the temperature of various detectors of radiation in the temperature region

-195 ... +30 °С. The use of cooler reduces the electric noise of detectors and enhances the signal-to-noise ratio. The cooler set consists of two blocks: cryogenic cooler CC-708 and temperature controller unit CNC-01. A detector settles within the heat exchanger made from copper tube surrounded by a number of capillaries. The heat exchanger is vacuum isolated from the device housing. The liquid nitrogen flows from the nitrogen reservoir through capillaries and cools the detector. A special valve, which set the pressure inside of the nitrogen reservoir, regulates the nitrogen flow rate through exchanger. To stabilize the temperature above the liquid nitrogen temperatures a resistive heater can heat the heat exchanger.

The controller unit CNC-01 consists of a power supply, a changer “voltage current”, temperature controller and digital indicator. The indicator on the front panel displays the set-up and current temperature of detector stabilized and controlled by the temperature controller unit.

The dimensions of the heat exchanger can be modified to meet the customer needs.

Cryogenic liquid

Nitrogen

Thermal insulation

Vacuum

Temperature interval, °C

-195 ... +30

Temperature stabilization accuracy, °C

±1

Heater power, W

150

Warm-up time, min

5

Power supply

50 Hz, 220 V ±10%

Cooling time to -195 °C, min

40

Nitrogen reservoir, L

2

Liquid nitrogen consumption, L/hour

0.5

Detector dimensions, mm

diameter

40

length

100

Optical axes position, mm

125*

Cooler dimensions, mm

500 х 220 х 220

Cooler weight, kg

< 6

Temperature controller dimensions, mm

150 х 240 х 290

Temperature controller weight, kg

< 4