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Germany Bruker Liquid helium refrigeration products

Germany Bruker Liquid helium refrigeration products

1
Description

Liquid helium refrigeration system

 

 

 

Product introduction:Liquid Helium refrigeration device, using liquid helium continuous flow refrigeration, can provide 3.4-300k continuous variable temperature low temperature environment, and has the characteristics of short working distance and good refrigeration effect, especially suitable for optical microscopic characterization.

 

Specifications:

 

Temperature range

3.4K to 300 K

Max diameter of sample

20mm

Cooled to 4.2K

15 minutes

Sample drift

0.15 Micron per hour(4.2K h)

Sample vibration

Less than 20nm

Liquid Helium consumption rate

0.75L/h(4.2K h)

Pumping speed of Molecular pump

35 litre/s (N2)

Vacuum environment provided by molecules

5 x 10E-6 mbar

Molecular pump front pumping speed

0.5m 3 /h

 

 
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