PTB > Structure > Division 2 > Department 2.4 > Dilution Cryostats
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Dilution Cryostats

Two commercial dilution cryostat systems (producer Oxford Instr.) are presently used for measurements on mesoscopic structures in the millikelvin temperature range.


Dilution Cryostat KELVINOX ATS Minisorp

Specs:

  • Cooling power 50 µW at T = 100 mK
  • Base temperature about 20 mK
  • Magnetic field 2 T (superconducting solenoid magnet)

Advantages:

  • Fast sample changing (turn around time about 12 h)
  • Low vibrations due to sorption pumps
  • Flexible due to many well-filtered leads

Disadvantage:

  • Small usable volume
 

Dilution cryostat KELVINOX ATS minisorp
Click for blow-up (JPG 80 KB)


Dilution Cryostat KELVINOX 400

Specs:

  • Cooling power 400 µW at T = 100 mK
  • Base temperature about 7 mK
  • Magnetic field 2 T (superconducting solenoid magnet)

Advantage:

  • Large usable volume

Disadvantages:

  • Sample changing cumbersome (turn around time > 24 h)
  • Low magnetic field

Dilution cryostat KELVINOX 400
Click for blow-up (JPG 49 KB)


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Page created: 25. March 2004, last update: 12. July 2007, Sergey Lotkov