25-27 November 2015
National Centre for Synchrotron Science
Australia/Melbourne timezone

Neutron and infrared spectroscopy: Complimentary tools for vibrational studies.

26 Nov 2015, 13:30
Exhibition space (National Centre for Synchrotron Science)

Exhibition space

National Centre for Synchrotron Science

Australian Synchrotron 800 Blackburn Road Clayton VIC 3168
Board: BT-35
Poster Beamlines, Instrumentation and Techniques Poster Session 1


Dr Anton Stampfl (Australian Nuclear Science and Technology Organisation)


A low energy band pass neutron spectrometer that operates in the range of $\sim 50\!-\!1200\, \textrm{cm}^{-1}$ has very recently been commissioned and first experiments run at the OPAL reactor. The so-called Beryllium-filter spectrometer is predominantly used to obtain vibrational density of states spectra from those materials that contain hydrogen, thus making this instrument especially important in the chemical, biological, geological and environmental sciences. In many aspects a neutron spectrum obtained using the Beryllium-filter spectrometer is very similar to spectra obtained in the far-infrared or terahertz regime making neutron spectroscopy a complementary technique to other spectroscopies such as photon (electromagnetic radiation)-based techniques. The neutron’s properties are unique amongst other fundamental probes like light, such as outstanding materials penetrability, isotopic sensitivity, magnetic sensitivity and lack of vibrational selection rules. A number of interesting examples are presented that highlight the capabilities and complementarity of vibrational neutron spectroscopy.
Keywords Neutron, infrared, molecular vibrational spectroscopy.

Primary author

Dr Anton Stampfl (Australian Nuclear Science and Technology Organisation)

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