The RC102-CFM is a ‘sample in vacuum’ cryostat.
The sample holder is located in vacuum. A flow of liquid helium or nitrogen
cools the sample, which can be adjusted away from or very close to the
window using vari-height thread in sample holders. For high rigidity and
stability, the sample is supported by opposing tension supports.

        

Liquid cryogen is delivered to the sample mount through the vacuum insulated transfer line.  An adjustable needle valve provides flow rate control.  Connect the heater on the sample mount to the temperature controller for automatic variable temperature operation.