TY - JOUR
T1 - Monte-Carlo simulation of neutron transmission through nanocomposite materials for neutron-optics applications
AU - Blaickner, M.
AU - Demirel, B.
AU - Drevensek-Olenik, Irena
AU - Fally, Martin
AU - Flauger, Peter
AU - Geltenbort, Peter
AU - Hasegawa, Y.
AU - Kurinjimala, R.
AU - Ličen, M.
AU - Pruner, Christian
AU - Sponar, Stephan
AU - Tomita, Yasuo
AU - Klepp, Jürgen
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2019/2/1
Y1 - 2019/2/1
N2 - 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.
AB - 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.
KW - DIFFRACTION
KW - INTERFEROMETER
KW - Monte Carlo simulations
KW - Nanocomposite materials
KW - Neutron optics
KW - SCATTERING
UR - http://www.scopus.com/inward/record.url?scp=85057835747&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2018.11.074
DO - 10.1016/j.nima.2018.11.074
M3 - Article
SN - 0168-9002
VL - 916
SP - 154
EP - 157
JO - Nuclear Instruments & Methods in Physics Research. Section A. Accelerators, Spectrometers, Detectors, and Associated Equipment
JF - Nuclear Instruments & Methods in Physics Research. Section A. Accelerators, Spectrometers, Detectors, and Associated Equipment
ER -