QUOKKA - 40 metre reactor based monochromatic small angle neutron scattering instrument

Quokka since it entered user service in 2009, has serviced the needs of the Australia neutron scattering community, but also has provided some innovative capabilities for those international users. Here we describe the current state of the Quokka instrument, and those developments in the instrument capabilities and its sample environments. The instrument is designed to enable measurements of scattered intensity on an absolute intensity scale over three orders of magnitude of the momentum transfer (3 x 10-4 Å-1 < q< 0.7 Å-1). The instrument is able to perform polarized neutron experiments and a new high count rate detector will be commissioned on the instrument next year. While the instrument has successfully engaged those traditional users of small angle scattering, the instrument has a particularly Australian context for its further development, and a nascent community has been stimulated to widen the user base in terms of scientific area.

Keywords

Australia, Neutron diffraction, Measuring instruments, Small angle scattering, Momentum transfer, Image intensifiers

Citation

Garvey, C. J., Gilbert, E. P., Mata, J., Wood, K., & Wu, C.-M. (2017). QUOKKA - 40 metre reactor based monochromatic small angle neutron scattering instrument. Paper presented at ICNS 2017 (International Conference on Neutron Scattering), Daejeon, South Korea, 9 to 13 July 2017. Retrieved from: http://www.icns2017.org/program.php

URI

http://www.icns2017.org/program.php
https://apo.ansto.gov.au/dspace/handle/10238/11484

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