Higgs Sump Cryostat
02 Apr 2020



The Higgs Sump Cryostat is suited to testing of rotary systems (motors etc.) down to 20K.

  • Cryo-vac testing down to 60K (-213°C) or 20K (-253°C)
  • Designed specifically for mechanical rotary testing
  • Two rotary feedthroughs
  • Electrical/electronic access during test
  • Located in a controlled-access clean-lab area
  • Engineering support available to help design testing
  • Full technician support included for operation of cryostat and vacuum systems
Use cases
  • Rotary mechanical sub-system testing down to 20K (-253°C)
  • Ideal for motors, rotary-encoders, etc
  • Confirm correct operation during test through optical window and electrical/electronic pass-through connections
Technical details

Vessel Size 500mm (L) x 300mm (D) x 200mm (H)
Roughing Vacuum System1x scroll pump
High Vacuum System
1x turbo pump
Typical Pump Down time
~1 hour
Base Pressure at Ambient
< 5E-4 mbar
Base Pressure cold< 5E-5 mbar
Cooling System
1x 2-stage Helium CTI Helium cold-head
Temperature SensorsDT470 with Lakeshore temperature controller
Feedthroughs2x rotary feedthroughs, 4x electrical ports
Large Vacuum PortsDown-looking viewport dia 80mm
Small Vacuum Ports1x KF25
Radiation ShieldingSingle-stage at 80K with MLI
1st Stage cold station~60K (400mm x 200mm breadboard 25mm M6 tapped)
2nd Stage cold station
~20K (150mm x 150mm breadboard 25mm M6 tapped)
Pressure Relief Device  Fitted, pop-off @ 0.2bar
Unloaded cool down time~4 hours

Higgs Sump Cryostat