Abstract

The design and construction of a unique and precision pressure cell suitable for use in light-scattering experiments has been described. The cell has been adapted to allow scattering experiments from liquid samples. The optics of the cell has been especially designed to obtain a higher signal-to-noise ratio. The cell has been designed to be small and compact with sample volume ∼40 mm3. However, it still has a large heat capacity (∼250 J/K) which ensures easy and stable temperature control of the sample. The cell can sustain hydrostatic pressure up to 1000 bar and temperature up to 150 °C. When operated in the constant temperature and pressure mode it offers long-time (∼16 h) temperature and pressure stability of ±2 mK and ±0.05%, respectively, in this entire range.

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