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

A study of beam stability improvements delivered by a monochromator upgrade to the Australian Synchrotron MX2 beamline

27 Nov 2015, 13:30
National Centre for Synchrotron Science

National Centre for Synchrotron Science

Australian Synchrotron 800 Blackburn Road Clayton VIC 3168
Board: BT-22
Poster Beamlines, Instrumentation and Techniques Poster Session 2


Daniel Eriksson (Australian Synchrotron)Dr David Aragao (Australian Synchrotron) Tom Caradoc-Davies (Australian Synchrotron.)


MX2 is an in-vacuum undulator based crystallography beamline at the 3 GeV Australian Synchrotron. The beamline delivers hard x-rays in the energy range from 5.5 - 21 KeV to a focal spot at the sample position of ~15 microns FWHM. At 13 KeV the flux at the sample is typically 2.0 x 10^12 ph/sec. This beamline is ideal for weakly-diffracting, hard-to-crystallise proteins, viruses, protein assemblies and nucleic acids as well as smaller molecules such as inorganic catalysts and organic drug molecules. However, as a decrease in beam size generally has positive effect on smaller crystals or disordered larger crystals the beam vibration can have an effect in beam position with consequent decrease in data quality. These considerations are particularly true for small crystals such as from GPCRs or grown by the lipidic cubic phase methodologies where wedges of data from multiple crystals is required to build a complete set of data. A description of the latest upgrade on the monochromator including a pre- and post upgrade beam vibration analysis is presented. The results show a more robust beamline to both external vibrations as well as reduce intrinsic vibration.

Primary authors

Daniel Eriksson (Australian Synchrotron) Dr David Aragao (Australian Synchrotron)


Alan Easdon (Australian Synchrotron) Hima Cherukuvada (Australian Synchrotron) Dr Jason Price (Australian Synchrotron) Rachel Williamson (Australian Synchrotron) Robbie Clarken Dr Santosh Panjikar (Australian Synchrotron) Sofia Macedo (Australian Synchrotron) Dr Stephen Harrop (Australian Synchrotron) Tom Caradoc-Davies (Australian Synchrotron.)

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