Germany Bruker Liquid helium refrigeration products
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 |
All rights reserved©Beijing sismer micro technology co., LTD 京ICP备18011491号-1
