Echidna-the new high-resolution powder diffractometer being built at OPAL

Klaus Dieter Liss*, Brett Hunter, Mark Hagen, Terrence Noakes, Shane Kennedy

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

228 Scopus citations


A new powder diffractometer aiming for high angular, and thus high reciprocal space, resolution is being constructed within the Neutron Beam Instrumentation Project at the upcoming Australian Neutron Source OPAL, near Sydney. The neutron flux at the sample can be expected to be up to 107 n/cm2/s. With an array of 128 position sensitive detectors, each equipped with a 30 cm high Söller collimator of 5 arc min acceptance this instrument will have one of the highest performances of its kind. In addition to classical applications in powder diffraction, the quasi two-dimensional detector will be used for rapid texture measurements, where high separation of peaks is necessary. Even single crystal reciprocal space mapping is envisaged. The article compiles an overview of the design, status of the project and potential research activities. Crown

Original languageEnglish
Pages (from-to)1010-1012
Number of pages3
JournalPhysica B: Condensed Matter
StatePublished - 15 Nov 2006
Externally publishedYes


  • Neutron instrumentation
  • Powder diffraction
  • Single-crystal diffraction
  • Textures


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