A high temperature high pressure cell for quasielastic neutron scattering

F. Yang; J. Kaplonski; T. Unruh; E. Mamontov; A. Meyer

doi:10.1063/1.3623796

A high temperature high pressure cell for quasielastic neutron scattering

F. Yang, J. Kaplonski, T. Unruh, E. Mamontov, A. Meyer

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4 Scopus citations

Abstract

We present our recent development of a high temperature high pressure cell for neutron scattering. Combining a water cooled Nb1Zr pressure cell body with an internal heating furnace, the sample environment can reach temperatures of up to 1500K at a pressure of up to 200MPa at the sample position, with an available sample volume of about 700mm³. The cell material Nb1Zr is specifically chosen due to its reasonable mechanical strength at elevated temperatures and fairly small neutron absorption and incoherent scattering cross sections. With this design, an acceptable signal-to-noise ratio of about 10:1 can be achieved. This opens new possibilities for quasielastic neutron scattering studies on different types of neutron spectrometers under high temperature high pressure conditions, which is particularly interesting for geological research on, e.g., water dynamics in silicate melts.

Original language	English
Article number	083903
Journal	Review of Scientific Instruments
Volume	82
Issue number	8
DOIs	https://doi.org/10.1063/1.3623796
State	Published - Aug 2011
Externally published	Yes

Funding

We thank the sample environment group at FRM II for their help during setting up of the pressure apparatus on the instruments TOFTOF. We thank S. Stüber and I. Pommrich for their support during the experiments at FRM II, F. Kargl for reading the manuscript. The measurement at ORNL’s SNS was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, (U.S.) Department of Energy (DOE). The financial support from Deutsche Forschungsgemeinschaft (DFG) under Grant Nos. Me1958/8-1,2 and PE580/8-3 is gratefully acknowledged.

Funders	Funder number
Scientific User Facilities Division
Basic Energy Sciences
Deutsche Forschungsgemeinschaft	Me1958/8-1,2, PE580/8-3

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10.1063/1.3623796

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AU - Kaplonski, J.

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A high temperature high pressure cell for quasielastic neutron scattering

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