Liquid helium
The
generation and use of liquid helium at St Andrews has
a long history in St Andrews, due to Prof. J F Allen's
pioneering work here from 1947. The helium liquifier constructed
in-house around that time is on display outside theatre
C. We now use a commercially obtained liquifier.
The helium gas that boils off from the various cryostats
in the building is collected and piped back to storage
underneath the new machine, before it is re-liquified.
26 July 2002
