1 Getting Started
This manual describes the liquid handling system and the
in situ
sample cell as used
on the DEVA instrument with the “RF” spectrometer, for either normal muon spins
relaxation or RF resonance experiments.
1.1 Layout of the liquid handling system
The Muon Liquid Handling System has been designed to facilitate the
in situ
degassing and transfer of samples into and out of the sample cell. The main features
of the liquid handling system are shown in Figure 1.
Inlet 1
Inlet 2
Gas
pressure
Cell
pressure
To pump
To cell
Baratron
Vessel 2
Vessel 1
Vessel 3
Figure 1
The layout of the front panel on the muon liquid handling system.
In general, the rig consists of three glass vessels for the storage of liquid samples, any
of which can be opened to a vacuum for the purposes of degassing by the freeze-
pump-thaw method. Once degassed, the sample liquid can be transferred to the
sample cell contained within a cryostat without further exposure to the air. In
addition, samples may be returned to the rig for further freeze-pump-thaw cycles or
for disposal.
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