Close cycle refrigerators are really easy to use, as one does not need
to deal with cryogens. However, all our present system have one drawback:
The sample is mounted in vacuum, which leads to some uncertainity in the
temperature, especially at temperatures below 20 K. For that reason, it
is necessary to put even single crystals into a sealed sample container
containing He gas. Some ideas what gradients can be expected can be
taken from a CTI Test Report.
|CCR2?||Sumitomo CCR (FOCUS)||4.5 ... 300 K|
|CCR2HT?||Sumitomo CCR (FOCUS) with Hi-T stage||30 ... 600 K|
|CCR3||ARS, for use on euler cradle||4.5 ... 325 K|
|CTI7? || Standard CTI|| 15 ... 325 K|
|CTI7? || CTI with hot stage|| 40 ... 470K|
CCRs out of service
This page last changed on 25-Apr-2022 13:37:58 UTC by 188.8.131.52.