Test stations for mechanical manufacturing and tests (at cryogenic temperatures)

Pressurized superfluid helium cryostat

Context:

Physical measurements in pressurized superfluid helium (dimensions of the sample: Φ ≤ 200 mm and h ≤ 200 mm, 1.6 K ≤ T ≤ 2.15 K).

  • Double bath cryostat with Hampson exchanger and without nitrogen shield,
  • The bath at T=4.2 K is supplied by dewar,
  • Pumping group composed of a 300 m3/h vane pump, a 1000 m3/h Roots pump and a 2000 m3/h Roots pump,
  • Automated cryostat control system (helium transfer, helium level, test bath at 1 mK and maximum power of 15 W),
  • Multi-channel fast data acquisition system (333 kHz / number of channels).

Lights

Pressurized superfluid helium cryostat

Measurement of the Thermal Conductivity of Insulators and Conductors (MECTIX)

Context:

This station has a cryogenerator-cooled variable temperature measurement cell for carrying out thermal conductivity measurements on samples of around 10 cm in length in a temperature range from 4.2 K to 300 K.


Lights

Measuring cell at the MectiX test station

Location

CEA - Saclay (France)


Contact

For further information please email: AMICI@cea.fr.