Neutron triple-axis spectrometry explained

Triple-axis spectrometry (TAS, three axis spectroscopy) is a technique used in conjunction with inelastic neutron scattering. The instrument is referred to as triple-axis spectrometer (also called TAS). It allows measurement of the scattering function at any point in energy and momentum space physically accessible by the spectrometer.

History

The triple-axis spectrometry method was first developed by Bertram Brockhouse at the National Research Experimental NRX reactor at the Chalk River Laboratories in Canada. The first results from the prototype triple-axis spectrometer were published in January 1955 and the first true triple-axis spectrometer was built in 1956. Bertram Brockhouse shared the 1994 Nobel Prize for Physics for this development, which allowed elementary excitations, such as phonons and magnons, to be observed directly. The Nobel citation was "for pioneering contributions to the development of neutron scattering techniques for studies of condensed matter" and "for the development of neutron spectroscopy".

TAS instruments in current use

FRM-II Forschungsneutronenquelle Heinz Maier-Leibnitz

See main article: article and FRM-II.

Helmholtz-Zentrum Berlin für Materialien und Energie

See main article: article and Helmholtz-Zentrum Berlin für Materialien und Energie.

Paul Scherrer Institut

See main article: article and Paul Scherrer Institut.

Institut Laue-Langevin

See main article: article and Institut Laue-Langevin.

CEA/Saclay Laboratoire Léon Brillouin

See main article: article and Commissariat à l'énergie atomique.

NIST Center for Neutron Research

See main article: article and NIST.

ORNL HFIR

See main article: article, ORNL and HFIR.

ANSTO Bragg Institute

See main article: article and ANSTO.

MURR University of Missouri Research Reactor

External links

Notes and References

  1. Web site: Cold Neutron 3-Axis Spectrometer (FLEXX) . https://web.archive.org/web/20160116142053/http://www.helmholtz-berlin.de/pubbin/igama_output?modus=einzel&sprache=en&gid=1710&typoid=8542. 2016-01-16. dead.
  2. Web site: Thermal Neutron 3-Axis Spectrometer. https://web.archive.org/web/20160304002040/http://www.helmholtz-berlin.de/pubbin/igama_output?modus=einzel&sprache=en&gid=1709&typoid=8542. 2016-03-04 . dead.
  3. Web site: https://web.archive.org/web/20070219090106/http://spectroscopy.web.psi.ch/rita2/. RITA II . 2007-02-19.
  4. Web site: TASP | TASP | Paul Scherrer Institut (PSI). www.psi.ch.
  5. Web site: EIGER | EIGER | Paul Scherrer Institut (PSI). www.psi.ch.
  6. Web site: https://web.archive.org/web/20061124041527/http://www.ill.fr/YellowBook/IN1/. Hot-neutron triple-axis spectrometer. November 24, 2006. dead.
  7. Web site: IN3 - thermal neutron three-axis spectrometer. https://web.archive.org/web/20000902172356/http://www.ill.fr/YellowBook/IN3/. 2000-09-02. dead.
  8. Web site: IN8 thermal neutron three-axis spectrometer. https://web.archive.org/web/20010714115407/http://www.ill.fr/YellowBook/IN8/. 2001-07-14. dead.
  9. Web site: CRG - cold neutron three-axis spectrometer. https://web.archive.org/web/20010514031709/http://www.ill.fr/YellowBook/IN12/. 2001-05-14. dead.
  10. Web site: IN14 cold neutron three-axis spectrometer. https://web.archive.org/web/20001218055100/http://www.ill.fr/YellowBook/IN14/. 2000-12-18. dead.
  11. Web site: IN20 thermal neutron three-axis spectrometer with polarization analysis. https://web.archive.org/web/20010514032511/http://www.ill.fr/YellowBook/IN20/. 2001-05-14. dead.
  12. Web site: IN22 thermal neutron three-axis spectrometer with polarization analysis. https://web.archive.org/web/20010514032840/http://www.ill.fr/YellowBook/IN22/. 2001-05-14. dead.
  13. Web site: D10 four-circle diffractometer with three-axis energy analysis. https://web.archive.org/web/20010430223055/http://www.ill.fr/YellowBook/D10/. 2001-04-30. dead.
  14. Web site: 1 T1 Double Focusing Thermal Triple Axis Spectrometer. 2003. 67-68.
  15. Web site: 2 T1 Thermal Neutron Triple Axis Spectrometer. 2003. 69-70.
  16. Web site: 4 F 1 Cold Neutron Three Axis Spectrometer. 2003. 71-72.
  17. Web site: 4 F 2 Cold Neutron Three Axis Spectrometer. 2003. 73-74.
  18. Web site: Spin Polarized Inelastic Neutron Spectrometer (SPINS). www.ncnr.nist.gov.
  19. BT-7 Double Focusing Triple-Axis Spectrometer. December 19, 2018. NIST. www.nist.gov.
  20. CHRNS MACS - The Multi-Axis Crystal Spectrometer. April 2, 2019. NIST. www.nist.gov.
  21. Web site: Cold Neutron Triple-Axis Spectrometer | Neutron Science at ORNL. neutrons.ornl.gov.
  22. Web site: Polarized Triple-Axis Spectrometer | Neutron Science at ORNL. neutrons.ornl.gov.
  23. Web site: Versatile Intense Triple-Axis Spectrometer | Neutron Science at ORNL. neutrons.ornl.gov.
  24. Web site: Triple-Axis Spectrometer | Neutron Science at ORNL. neutrons.ornl.gov.
  25. Web site: https://web.archive.org/web/20090514192618/http://www.ansto.gov.au/research/bragg_institute/facilities/instruments/taipan. ANSTO | Taipan. May 14, 2009.
  26. Web site: Beryllium Filter Option. https://web.archive.org/web/20130512061815/https://www.ansto.gov.au/ResearchHub/Bragg/Facilities/Instruments/Taipan/Beryllium-FilterOption/index.htm. 2013-05-12.
  27. Web site: https://web.archive.org/web/20090514191918/http://www.ansto.gov.au/research/bragg_institute/facilities/instruments/sika. ANSTO | Sika. May 14, 2009.
  28. Web site: MU Research Reactor - Material Sciences.

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