The Entropy cryostats with sorption units are available as M- and L-series based on pulse-tube coolers with a cooling power of 0.5 W or 1.0 W at 4.2 K and various sample space.
We offer the cryostats with He-4 and He-7 sorption units from our partner Chase Research Cryogenics LTD.
Cryostat with He-4 Unit:
- Base temperature: < 1 K
- Hold time: > 12 hours @ 1 K with 100 µW heat load
Cryostat with He-7 Unit:
- Base temperature: < 300 mK
- Hold time: > 24 hours @ 300 mK with 20 / 50 µW heat load
Sample space at 4K:
- Ø 230 x 300 mm (M-series)
- Ø 300 x 400 mm (L-series)
- Or completely custom-made
The systems come fully featured up with temperature sensors, heaters, electronics and software with TCP/IP interface for remote control.
Several accessories such as DC cables, coax cables, circuit boards, fibers, optical ports and sample magnets are available on request.