Journal article · Conference paper
Using McStas for modelling complex optics, using simple building bricks
Nano-Microstructures in Materials, Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
University of Copenhagen4
Institut Laue-Langevin5
The McStas neutron ray-tracing simulation package is a versatile tool for producing accurate neutron simulations, extensively used for design and optimization of instruments, virtual experiments, data analysis and user training. In McStas, component organization and simulation flow is intrinsically linear: the neutron interacts with the beamline components in a sequential order, one by one.
Historically, a beamline component with several parts had to be implemented with a complete, internal description of all these parts, e.g. a guide component including all four mirror plates and required logic to allow scattering between the mirrors. For quite a while, users have requested the ability to allow “components inside components” or meta-components, allowing to combine functionality of several simple components to achieve more complex behaviour, i.e. four single mirror plates together defining a guide.
We will here show that it is now possible to define meta-components in McStas, and present a set of detailed, validated examples including a guide with an embedded, wedged, polarizing mirror system of the Helmholtz–Zentrum Berlin type.
Language: | English |
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Year: | 2011 |
Pages: | S150-S155 |
ISSN: | 18729576 and 01689002 |
Types: | Journal article and Conference paper |
DOI: | 10.1016/j.nima.2010.06.212 |
ORCIDs: | 0000-0002-2816-6825 , 0000-0003-4282-756X and Bergbäck Knudsen, Erik |