Janis Research, cryogenics, cryostats

SVT-400

HIGH EFFICIENCY VARIABLE TEMPERATURE CRYOSTAT

  Standard Features
  • Indium sealed, strain relief cold windows
  • Radiation shield cold windows
  • 50/25-ohm heaters on vaporizer heat exchanger/sample mount
  • Helium valve
  • Instrumentation feedthrough on cryostat body
  • 8-pin & 10-pin electrical feedthroughs on sample positioner
  • Optical or blank sample holders
  • Standard silicon diode control thermometers
     
  • Isothermal zone sample tube (provides uniform sample temperature and enhanced operation with LN2)
  Options
  • LHe and LN2 level indicator
  • Multipin and coaxial electrical connectors
  • Additional temperature sensors and controllers
  • Alternative window materials
  • 10-pin electrical feedthrough on cryostat body
  • Universal joints for sample positioners
  • Custom sample holders
  • Bottom looking optical access
  Specifications
LHe reservoir capacity 6 Liters
LN2 reservoir capacity 5 Liters
LHe hold times:
  Static sample zone 100 hours
  Sample zone use (<10 K) 40 hours
LN2 hold time 40 hours
Temperature range:
  LHe < 1.4 - 300 K
  LN2* 65 - 300 K
Temperature stability± 0.1 K
Outer tail dimensions:
  Optical (including retainers) 4.38"
  Non-optical 3.00"
Weight:
  Optical 66 lbs.
  Non-optical 55 lbs.
Optical windows 4 radial
Solid angle38°
f number 1.4
* Optional high temperature to 600 K is
   available on non-optical systems.

 


Click here for a description and photos of Model SVT-400.

SVT-400 Variable
Temperature Cryostat

SVT-400 high efficiency variable temperature cryostat mechanical drawing, Janis Research, cryogenics

SVT-400 high efficiency variable temperature cryostat mechanical drawing of views, Janis Research, cryogenics

 

Table of Contents

Page
Introduction 1
SVT-200 Optical Systems 2
SVT-200T Tubular Systems 3
SVT-200T-NMR Tubular Systems 4
SVT-300 Optical Systems 5
SVT-300T Tubular Systems

6

SVT-400 High Efficiency

7, 8

Double rotating sample positioner  

9

SVT-Options & Accessories

10

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