Monte-Carlo simulation of neutron transmission through nanocomposite materials for neutron-optics applications
- Author(s)
- M. Blaickner, B. Demirel, Irena Drevensek-Olenik, Martin Fally, Peter Flauger, Peter Geltenbort, Y. Hasegawa, R. Kurinjimala, M. Ličen, Christian Pruner, Stephan Sponar, Yasuo Tomita, Jürgen Klepp
- Abstract
Nanocomposites enable us to tune parameters that are crucial for use of such materials for neutron-optics applications. By careful choice of properties such as species (isotope) and concentration of contained nanoparticles, diffractive optical elements for long-wavelength neutrons are feasible. Nanocomposites for neutron optics have so far been tested successfully in protonated form, containing high amounts of H-1 atoms, which exhibits rather strong neutron absorption and incoherent scattering. At a future stage of development, chemicals containing H-1 could be replaced by components containing more favorable isotopes, such as H-2 or F-19. In this note, we present results of Monte-Carlo simulations of the transmissivity of various nanocomposite materials for thermal and very-cold neutron spectra. Our simulation results for deuterated and fluorinated nanocomposite materials predict the losses due to absorption and scattering to be as low as 2%, as well as the broadening of the beam cross section to be negligible.
- Organisation(s)
- Physics of Functional Materials
- External organisation(s)
- Austrian Institute of Technology, Technische Universität Wien, University of Ljubljana, Jožef Stefan Institute (IJS), Institut Laue-Langevin (ILL), Paris-Lodron Universität Salzburg, The University of Electro-Communications
- Journal
- Nuclear Instruments & Methods in Physics Research. Section A. Accelerators, Spectrometers, Detectors, and Associated Equipment
- Volume
- 916
- Pages
- 154-157
- No. of pages
- 4
- ISSN
- 0168-9002
- DOI
- https://doi.org/10.1016/j.nima.2018.11.074
- Publication date
- 2018
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103021 Optics
- Keywords
- ASJC Scopus subject areas
- Nuclear and High Energy Physics, Instrumentation
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/montecarlo-simulation-of-neutron-transmission-through-nanocomposite-materials-for-neutronoptics-applications(f588df13-3dcc-406d-8547-1ee9fd8ff087).html