ST-100-FTIR Cryostat for Fourier Transform Infra-Red Spectroscopy Applications


Click here to enlarge photo of standard ST-100-FTIR cryostat with a mounting flange for a Bruker spectrometer, Janis Research, cryogenic equipment

The ST-100-FTIR cryostat is similar in operation to the standard SuperTran (ST-100) cryostats. To the basic design we have added a multiple-position sample holder and precision linear manipulator, allowing a reference plus two samples to be loaded at any one time. Samples may also be rotated.

As with all Janis cryostats, modifications may be made to the standard design in order to ensure a match with existing equipment. For example, the footprint of the cryostat may be reduced, or the number of sample positions increased.


Standard Configuration

Standard ST-100-FTIR features include:

Click button below to enlarge mechanical drawing of ST-100-FTIR cryostat (standard configuration), Janis Research, cryogenic equipmentEnlarge

ST-100-FTIR (standard configuration) Mechanical Drawing

  • Sample in vacuum
  • Multiple position sample holder
  • Linear manipulator with 2" travel
  • Sample rotation with scale
  • Silicon diode temperature sensor
  • Mounting flange to fit spectrometer
  • High efficiency cryogen transfer line
  • 1.63" diameter clear view window ports
  • O-ring sealed windows for easy window change
  • Liquid helium or liquid nitrogen cooling

Options include:

  • Remotely controlled linear manipulator and/or rotary stage
  • IR window materials, wedged or plane parallel
  • Compact design for a reduced cryostat footprint
  • Electrical access to the sample
  • A complete system solution including temperature controllerspumping systems and storage dewars
  • High temperature operation

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System Specifications ST-100-FTIR
Sample Environment Vacuum
Temperature Range ~2.5 - 325 K (higher temperatures optional)
Initial Cooldown Time 15 minutes to 10 K
Temperature Stability (with controller) 50 mK or less
Orientation Any position
System Weight (less transfer line) Approx. 10 lbs.
Cryogen Consumption (cooldown) 0.4 liters LHe from 325 - 4.2 K
Cryogen Consumption (operation) 0.6 L/hr at 5 K w/LHe
Note: Specifications do not include parasitic or experimental heat loads.
Specifications may change depending on the length of the transfer line flexible section.

Other Configurations

Contact Janis today to find out how the ST-100-FTIR can be modified to suit your application.

Click here to enlarge view of ST-100-FTIR-Special cryostat with automated linear and rotary motor, Janis Research, fourier transform infra-red spectroscopy, cryogenic equipment

Model ST-100-FTIR SPECIAL with automated linear and rotary motion

Click image to enlarge view of special 2-piece three position sample holder for ST-100-FTIR fourier transform infra-red spectroscopy cryostatClick image to enlarge view of special ST-100-FTIR cryostat for Thermo Nicolet Nexus 8700 FTIR spectrometer, fourier transform infra-red spectroscopy, janis research, cryogenic equipment

Pictured to the near right is a model ST-100-FTIR configured for use in conjunction with a Thermo Nicolet Nexus 8700 FTIR Spectrometer. The system uses a standard Nexus 8700 mounting plate, modified to match the cryostat vacuum shroud. Use of the standard Nexus mounting plate allows for easy integration of the cryostat and spectrometer. A specially configured two-piece, three position sample holder is supplied with the system (shown to the far right).

Model ST-100-FTIR cryostat with linear manipulator and welded mounting flange.  The flange was built to the customer's specifications to be installed on a home-made spectrometer. Janis Research

ST-100-FTIR with custom flange
Pictured to the right is a model ST-100-FTIR with a linear manipulator and a welded mounting flange. The flange was built to the customer's specifications.

Click image to enlarge view of ST-100-FTIR with Bruker mounting flange.

ST-100-FTIR with Bruker Mounting Flange

Click image to enlarge view of ST-100-FTIR for use in a Bruker Vertex 80V spectrometer.  Reference 16229ST-100-FTIR for use in Bruker Vertex 80V Spectrometer
The ST-100-FTIR shown is for use in a Bruker Vertex 80V spectrometer. The mounting flange for the spectrometer has two parts (one part not shown). The system has a motorized linear positioner installed along with a special 2-position DLTS sample holder.



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