CryoProbe and Other Accessories
H157655_1_008 91
10.3 Helium Cylinders
The  next  step  in  the  site  planning  for  a  CryoProbe  accessory  involves  determining  the
location for the helium gas cylinder. A research grade helium cylinder (grade 6.0, 99.9999%)
is supplied by the customer and is connected to the CryoCooling unit. The cylinder must be
outside the 5 Gauss line in a serviceable location (i.e. changing the bottle should not interfere
with  nearby  magnets).  The  helium  regulator  and  a  special  He  gas  hose  are  supplied  by
Bruker.
Two lengths for the He gas hose line are available (10 m and 20 m).
The  helium  compressor  and  helium  gas  cylinder  may  be  sited  in  a  remote  room  or  in  the
same room as the spectrometer as shown in the layout examples.
10.4 Summary of CryoProbe Options
Helium Compressors (3 Options)
• Indoor Air Cooled
• Indoor Water Cooled
• Outdoor Air Cooled
Helium Gas Transfer Lines
For Indoor Helium Compressors (3 Options)
• 6 m
• 10 m
• 20 m
For Outdoor Helium Compressors (11 Options)
• 3 m indoor line / 10 m outdoor line
• 3 m indoor line / 20 m outdoor line
• 3 m indoor line / 30 m outdoor line
• 6 m indoor line / 10 m outdoor line
• 6 m indoor line / 20 m outdoor line
• 6 m indoor line / 30 m outdoor line
• 10 m indoor line / 10 m outdoor line
• 10 m indoor line / 20 m outdoor line
• 10 m indoor line / 30 m outdoor line
• 20 m indoor line / 10 m outdoor line
• 20 m indoor line / 20 m outdoor line
Helium Cylinder High Pressure Gas Line (2 Options)
• 10 m
• 20 m