Lake Shore - supertran continuous flow cryogenic thermostat system

      Lake Shore SuperTran Extensive field proven applications and a global installation base , It represents the most advanced technology in the design of continuous flow cryogenic thermostat . Most systems use liquid helium (LHe) Or liquid nitrogen (LN 2 ), Can provide fast （15 Minutes or less 4.2 K, Use LHe） cooling 、<2 K to 325 K The total operating range and precise temperature control capability of an economical and easy-to-use software package .

      All systems are controlled by cold fingers 、 Radiation shielding 、 Sample rack 、 Lightweight aluminum vacuum cover 、 Electrical feed through port and efficient and flexible 6 Feet of refrigerant transmission lines .SuperTran The cryostat can run in any direction , There is only a small change in efficiency . The sample temperature is changed by a heater connected to the cold finger . Sample rack and all standards Lake Shore Sample racks are equipped with temperature measuring devices , And optional   Combined with temperature controller , The sample temperature can be accurately controlled .

        The temperature of the sample produced by the standard system is 77 K to 325 K (LN 2 ) and 4.2 K to 325 K (LHe). By reducing the pressure at the exhaust port of the system , Can easily be below 4.2 K Continuous operation at a temperature of . For most systems , By pumping cold fingers LHe stock , It is usually possible to reduce the temperature without external heat load <2 K The temperature is maintained at about 7 minute . Optional high-power heaters are available on special orders up to 800 K Sample temperature of .

      An efficient super insulation 、 Vacuum jacketed transmission line , Equipped with evacuation and safety relief valves , Connect the cryostat head to the storage Dewar . The diameter is 0.50 The storage Dewar legs are suitable for most commercially available storage Dewar bottles . all Lake Shore The systems are fully integrated , The liquid helium test was carried out at our plant in warburn, Massachusetts before shipment .

      If the rising cost of liquid helium makes your research difficult ,Lake Shore The circulating gas cooler of does not need to be in “ Wet ” Liquid helium is used in the system .

      SuperTran characteristic

      The temperature exceeds 4.2 K There is no need for a vacuum pump

      No need to heat the exhaust gas

      There is no need to monitor the flow rate

      Easily adapt to He Recycling system

      Highly flexible transmission lines , The bending radius shall be at least 12 Inch

      ST-100 Low temperature thermostat system

      Optical continuous flow cryostat suitable for wide application ： You can specify the window material and geometry , To allow the spectrum to have excitation energy from gamma ray to far infrared ray .

      ST-100-FTIR Low temperature thermostat system

      Apply to FTIR Applied optical continuous flow cryostat . These cryogenic thermostats are similar to our standard models ST-100 Low temperature thermostat , But it can operate between samples .

      ST-170 ESR Low temperature thermostat system

      ST-170 The cryostat is designed for magnetic resonance applications , yes ESR Ideal for spectrum .ST-170 Use with others SuperTran The same efficient transmission line as the cryostat , It has the characteristics of low helium consumption and fast cooling . The cryostat is easily mounted between the poles of the magnet .

      ST-200 Tubular system

      Low temperature thermostat with tubular tail is suitable for resistivity measurement or experimental configuration without square tail .

      ST-200/NMR Tubular system

      Low temperature thermostat with tubular tail is suitable for resistivity measurement or experimental configuration without square tail .ST-200-NMR Systems and standards ST-200 be similar , But for NMR Designed for spectrum .

      ST-300/300T Compact system

      These cryostat are designed for experiments with limited space , Available in optical or non optical configurations . You can specify the tail diameter to suit your experiment .

      For microscopes ST-300-MS Compact system

      This compact cryogenic thermostat is designed to ST-500 A substitute for a microscope cryostat , Compare the short working distance with the standard SuperTran Combination of design .ST-300-MS The cryostat is designed for experiments with very limited space , And provide compact or ultra compact window blocks .

      ST-400 Ultra high vacuum system

      As in UHV An effective way to reach low temperature in the environment , This low temperature thermostat is designed for use in 10 -11  Torr Pressure and 500 K Designed for system operation at baking temperature . The length of the cryostat is specified to suit your UHV room .

      ST-500 Microscope cryostat

      Designed for use in microscopes 、 Imaging and high spatial resolution photoluminescence . Low thermal expansion support structure combined with internal vibration isolation , Ultra low vibration and drift levels . Low temperature thermostat geometry provides a short working distance （ For high magnification optical elements ）, It can be installed on common microscope stage and converter .

      ST-500UC Subminiature microscope cryostat

      Thin cryostat designed for microscope and imaging applications . Low thermal expansion support structure combined with internal vibration isolation , Reduces vibration and drift levels . The cryostat geometry provides a short working distance between the top window and the sample （ For high magnification optical devices ）.