A hydrostatic high-pressure cell for neutron scattering experiments at room temperature

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Abstract
The design of a high-pressure cell to be used in scattering experiments must ensure a low absorption of the neutrons by the cell. This, in turn, restricts the choice of the raw materials of which the cell can be made and calls for changes in the shape of the constitutive elements with respect to standard designs used in high-pressure work in other fields. As a result, the maximum attainable hydrostatic pressure is considerably lowered (to under 25 kbar; it also depends upon the sample). One original feature of our work is a highly reliable fluid tight electrical passage which allows the use of a manganin gauge for continuous monitoring of the inner pressure (with or without neutrons)