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ST-200 Non-optical (Tubular) Cryostat

The ST-200 series are cryostats with tubular tails suitable for resistivity measurements or experimental configurations where square tails are undesirable.

ST-200 tubular non-optical supertran continuous flow cryostat

Designed for non-optical experiments, the ST-200 includes the following components:

Tubular vacuum shroud
Tubular radiation shield
Blank sample holder
One (1) 10-pin electrical feedthrough
Three (3) blank feedthrough ports
Temperature sensor
6 ft superinsulated cryogen transfer line
Control heater
System test

Typical applications:

High Tc
Resistivity
Hall studies
Magneto resistivity
NMR spectroscopy
Diffractions:
- Gamma ray
- Neutron (please see other configurations)
- X-ray

Also available: ST-200-NMR cryostat for NMR spectroscopy

The ST-200-NMR standard configuration

ST-200-NMR tubular non-optical supertran continuous flow cryostat

This drawing is an application-specific variation of the tubular SuperTran ST-200 cryostat. This very specialized design includes a thermal anchor above the radiation shield for mounting electronics and a number of rotary and BNC electrical feedthroughs for access to the sample area.

ST-200/ST-200-NMR Specifications

Temperature range	<2 to 325 K (500 K, >700 K optional)
Initial cooldown time	15 min
Nominal temperature stability (with controller)	50 mK or less
Orientation	Any position (with increased helium consumption)
System weight (without transfer line)	10 lb (4.6 kg)
Cryogen consumption on cooldown	0.4 L LHe (325 to 4.2 K) 0.1 L LN₂ (325 to 77 K)
Nominal cryogen consumption rate	0.6 L/h LHe (5 K) 0.1 L/h LN₂ (100 K)
Note:Specifications do not include optical or experimental heat loads and assume vertical orientation. Specifications may change depending on the length of the transfer line flexible section.

Other configurations

Other tubular configurations:

High temperature (500 K), (700 K)
Large diameter sample space
Thin wall aluminum vacuum shroud