Platypus: a time-of-flight neutron reflectometer at Australia's new research reactor
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Date
2007-01-31
Authors
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Journal ISSN
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Publisher
Taylor & Francis
Abstract
A time-of-flight neutron reflectometer is to be built at the new 20 MW research reactor (OPAL) in Sydney. The instrument will be positioned at the end of a curved supermirror neutron guide that will provide optimal transmission of cold neutrons (2–20 Å) while removing fast neutrons and high-energy γ-rays. The reflectometer will utilise a white neutron beam that will be pulsed using a series of boron coated disc choppers. Typically three angle settings will be required to collect a complete reflectivity profile (from Q z = 0.005–0.5 Å− 1). The new instrument will operate with a vertical scattering plane, making it suitable for both solid and “free-liquid” surfaces. The instrument will also be capable of producing a spin-polarized neutron beam making provision for polarized neutron reflectometry studies. Detection of the reflected neutrons will take place using a 2-dimensional 3He delay-line detector with high-speed data acquisition electronics. © 2022 Informa UK Limited
Description
Keywords
ANSTO, Beams, Chemical coating, Deposition, Dimensionless numbers, Electric properties, Films, Physical properties, Sensitivity, Measuring instruments
Citation
James, M., Nelson, A., Brule, A., & Schulz, J. C. (2006). Platypus: a time-of-flight neutron reflectometer at Australia's new research reactor. Journal of Neutron Research, 14(2), 91-108. doi:10.1080/10238160500472688