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Bell Cryostat
02 Apr 2020
Yes
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The Higgs Bell Cryostat is suited to a number of low temperature vacuum testing applications.

Yes
 
Features
  • Vacuum or cryo-vac testing down to 60K (-213°C) or 20K (-253°C)
  • Can accommodate units up to 1.2m
  • Optical and 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
  • General vacuum compatibility testing
  • Cryogenic-vacuum system testing from room-temperature to 20K (-253°C)
  • Ideal for larger volume or heavier items
  • Confirm correct functional operation during test through optical window and electrical/electronic pass-through connections
Technical details
​Vessel Size
​1500mm dia x 900mm (H)
​Roughing Vacuum System​1 x scroll pump
​High Vacuum System​1 x 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 Sensors​DT470 with Lakeshore temperature controller
​Feedthroughs​Multiple electrical ports
​Large Vacuum Ports ​ 5 x ISO 160 ports, 1 fitted with viewport
​Small Vacuum Ports​3 x KF25
​Radiation Shielding​Single-stage at 80K with ML
​1st Stage cold station​~60K (1200mm x 1200mm breadboard 25mm M6 tapped)
​2nd Stage cold station​ ~20K (600mm x 600mm breadboard 25mm M6 tapped)
​Pressure Relief Device​Fitted, pop-off @ 0.2bar
​Unloaded cool down time​~4 hours​
​
Bell cryostat

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