Products

STVP-100-FTIR Cryostat for FTIR Spectroscopy

Overview

Click button below for enlarged view of STVP-100-FTIR cryostat, Janis Research

Optical continuous flow cryostats for FTIR applications. These cryostats are similar to our standard model STVP-100 cryostats, but with the modifications for integrating the cryostat with your spectrometer system.

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Standard Configuration

Similar in operation to the standard SuperTran-VP (STVP-100) cryostats, the STVP-100-FTIR includes a multiple position sample holder and a mounting flange to allow integration with a spectrometer. The sample is cooled by flowing vapor, and is therefore an ideal choice for studying materials that are difficult to cool by conduction.

Click on button below to enlarge view of STVP-100-FTIR mechanical drawing, Janis ResearchEnlarge

STVP-100-FTIR Mechanical Drawing

The drawing to the right shows a standard STVP-100 sample positioner with coarse translation and rotation. If more precise translation and/or rotation is required, a linear manipulator may be mounted on the sample positioner for more accurate positioning. The drawing illustrates typical Fourier Transform Infra-Red (FTIR) windows, which may be altered to suit the specific application. The sample tube diameter may also be specified.

Standard STVP-100-FTIR features include:

  • Sample in flowing vapor
  • Multiple position sample holder
  • Adjustable position sample positioner allowing sample rotation and translation
  • Silicon diode temperature sensors on sample mount and vaporizer
  • Mounting flange to fit spectrometer
  • High efficiency cryogen transfer line
  • Indium sealed, strain-relieved, cold windows
  • Liquid helium cooling

Options include:

  • Manually controlled precision linear and/or rotary manipulators
  • Remotely controlled linear manipulator and/or rotary stage
  • IR window materials, wedged or plane parallel
  • Range of sample tube sizes available
  • Liquid nitrogen cooling
  • Electrical access to the sample
  • A complete system solution including temperature controllers, pumping systems and storage dewars
  • Isothermal zone sample tube (provides uniform sample temperature and enhanced operation with LN2)
  • Base plate or mounting flange to interface with customer-owned spectrometer

Contact Janis today to find out how the STVP-100-FTIR can best suit your application.

Specifications

System Specifications STVP-100-FTIR
Sample Environment Liquid or flowing vapor
Temperature Range <2 - 300 K
Initial Cooldown Time 15 minutes
Temperature Stability (with controller) 50 mK or less
Orientation Vertical for <4.5 K
System Weight (less transfer line) Approx. 15 lbs.
Cryogen Consumption (cooldown) 0.5 liters LHe from 325 K - 4.2 K
Cryogen Consumption (operation) 1.1 L/hr at 5 K w/LHe
NOTE: Specifications do not include parasitic or experimental heat loads.

Other Configurations

Click on image for enlarged view of Special STVP-100-FTIR, option 2, Janis Research, cryogenic equipment

Pictured to the right is a special model STVP-100-2-FTIR with:

  • Manually controlled precision linear manipulator for vertical positioning of samples with 2" travel.
  • Drum dial indicator for rotation of sample positioner along the vertical axis.
  • Indium sealed cold windows (PPN and ZnSe)
STVP-100-FTIR continuous flow cryostat with ZnSe outer windows in one axis and Polyethylene windows in the other axis. Janis Research, cryogenicsSTVP-100-FTIR with special compact 3-position precision sample positionerSTVP-100-FTIR from Janis Research with mounting flange designed for use in Bomem FTIR spectrometer, cryogenics

STVP-100-FTIR with Mounting Flange Designed for Use in a Bomem FTIR Spectrometer
The cryostat to the right was designed for use in a Bomem FTIR spectrometer. It has ZnSe outer windows in one axis and Polyethylene windows in the other axis. The user requested a precision sample positioner with a special compact three-position sample holder and a manual precision linear/rotary manipulator.

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