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Title

Helium gas pressure cell for pressures up to 1 kbar (0.1 GPa) in conjunction with the cold head of a closed-cycle He refrigerator

Authors
Kindler, Ueli
Spiering, Hartmut
Published in Measurement Science and Technology. 1997, vol. 8, no. 5, p. 479-483
Abstract A helium gas pressure cell for pressures up to 1 kbar (0.1 GPa) has been developed in conjunction with a closed-cycle He refrigerator allowing variable temperatures between 15 and 300 K. Both cell and refrigerator are equipped with optical windows suitable for photophysical measurements, such as temperature- and pressure-dependent absorption spectroscopy or laser flash photolysis. Examples of measurements on iron(II) spin-crossover systems are given. In these compounds, comparatively small external pressures induce significant changes in the thermodynamic equilibrium as well as in the relaxation dynamics.
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Research group Groupe Hauser
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JEFTIC, Jelena et al. Helium gas pressure cell for pressures up to 1 kbar (0.1 GPa) in conjunction with the cold head of a closed-cycle He refrigerator. In: Measurement Science and Technology, 1997, vol. 8, n° 5, p. 479-483. https://archive-ouverte.unige.ch/unige:2779

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Deposited on : 2009-09-21

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