A new high P-T cell for neutron diffraction up to 7 GPa and 2000 K with measurement of temperature by neutron radiography

Yann Le Godec, Martin T. Dove, Simon A.T. Redfern, Matthew G. Tucker, William G. Marshall, Gérard Syfosse, Jean Michel Besson

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

This paper reports developments to enable neutron diffraction at simultaneous high temperatures and pressures using the Paris-Edinburgh cell. These include a new design of a cell assembly with internal heating. One of the novel features of our system is the use of neutron radiographic methods for measurement of temperature. Fully refinable neutron diffraction patterns obtained by time of flight technique with our apparatus are found to be of comparable quality to previous high-pressure studies at ambient temperatures. In this paper we describe the procedures for the generation and measurement of pressure and temperature and illustrate the quality of the data which can be obtained. The present system may be used on a routine basis for experiments up to 7 GPa and temperature approaching 2000K. Current attempts are discussed for extending these measurements to a wider domain of pressures and temperatures.

Original languageEnglish
Pages (from-to)263-280
Number of pages18
JournalHigh Pressure Research
Volume21
Issue number5
DOIs
StatePublished - 2001
Externally publishedYes

Keywords

  • High pressure
  • High temperature
  • Neutron diffraction
  • Neutron radiography

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