Janis introduces its new
³He-⁴He dilution refrigerator

Model JDR-100

Janis Research introduces its newly designed Dilution Refrigerator.  The Model JDR-100 (pictured left) was completely manufactured "in-house" at the Wilmington, Massachusetts facility.  Janis is pleased with the impressive test results, and the performance highlights are listed below.  Charts with the performance of the typical cooling kinetics and cooling power are also shown below.

Model JDR-100 performance:

• Guaranteed base temperature<=15 mK using only a hermetically sealed mechanical pump.  (The expected base temperature is 10 mK.)
• Guaranteed cooling power Q^• = 100µW at 100 mK.  (The expected cooling power at 100 mK is 150µW-180µW.)
• The laboratory temperature scale is maintained by a CMN (Cerium-Magnesium Nitrate) magnetic susceptibility thermometer, calibrated against superconducting transitions of Cd, AuIn₂, AuAl₂, Ir and Be.
• Janis model MCRT-47 Matsushita resistance thermometers (with room temperature resistance of 47 Ohms) have been calibrated down to 30 mK utilizing the above referenced temperature scale.
• Calibration and re-calibration of resistance thermometers is now available using CMN thermometry and superconducting fixed points.  (Please contact Janis for pricing.)

If you would like more information about the model JDR-100 dilution refrigerator, please contact Janis.

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