Improving a piston-cylinder pressure cell for μSR experiments | 9/17/2019 | Staff
hoppers911 (Posted by) Level 4
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Zurab Shermadini, Rustem Khasanov, Matthias Elender and Alex Amato at PSI have looked at the design of a double-wall piston-cylinder pressure cell specifically designed for muon-spin rotation (μSR) experiments.

The first step was to make both the inner and outer cylinders of a double-wall pressure cell design out of Copper Beryllium (CuBe), a common alloy used for μSR pressure cells. This material has well-defined low-background contributions to the μSR signal that are almost temperature-independent and therefore favorable for use in low-temperature μSR studies. The mechanical characteristics where then analyzed using the finite-element analysis (FEA) software ANSYS which allowed optimization of the cell dimensions to try and reach the highest possible pressure whilst keeping experiments safe.

Prototype - Pressure - Kbar - Agreement

A prototype was built which allowed a pressure of about 18 kbar, in agreement with the...
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