4 K closed cycle refrigerator with two-axis optical alignment

August 2008

Janis Research Company is proud to announce rotation and positioning stages for our 4 K closed cycle sample in vacuum cryostat systems. Rotation about the cryostat access has ~0.5° resolution and a range of ±360° about the cryostat axis and rotation is only limited by the helium flexlines and electrical cables. Rotation off the cryostat access has a resolution of <0.2° and a full range of ±90° of motion. The system comes with four radiation shield windows and reaches a sample base temperature of ~4K. This system is ideal when fine optical alignment is required for experimental samples. Click on the photos below for a larger view. Click here to download a mechanical drawing of this system. (PDF 101 KB)

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