The SVT Series SuperVariTemp cryostats are helium-cooled systems designed for sample temperature control between <2 K and 325 K, with the sample positioned in flowing helium vapor to eliminate thermal anchoring requirements. The cryostat features a liquid nitrogen shielded liquid helium reservoir, a built-in heater for variable temperature control, and optimized two-loop temperature regulation. It has a height of 1143 mm (45 in), a sample tube size of either 31.8 mm (1.25 in) or up to 63.5 mm (2.5 in), and a window block size of 114 mm square (4.5 in). The approximate weight is 38.6 kg (85 lb). LHe and LN2 hold times are specified at 12 hours and 36 hours respectively across variants. Temperature stability is typically ±50 mK. The system includes a calibrated temperature sensor and operates with a Lake Shore temperature controller.
The Lake Shore SVT Series SuperVariTemp cryostats are helium-cooled with the sample located in flowing vapor. By controlling the temperature of this flowing helium, both the sample and holder are simultaneously cooled to the same temperature, thereby eliminating the need for thermal anchoring. The helium flow rate and heater current are balanced to provide sample temperatures over the range of <2 K to 325 K.
| Lake Shore Cryotronics, Inc. | |
|---|---|
| Product Category | Cryostats and Dewars |
| Product Number | SuperVariTemp |
| Product Name | Cryostat |
