5 papers
Chemically homogeneous boron carbide 10B/11B isotope modulated neutron interference mirrors
J. Birch, S. Stendah, S. Dorri +3
We introduce a novel type of neutron interference mirrors based on a chemically homogeneous BxC (x>4) matrix with internal high precision 10B/11B isotope modulation. Simulations pr…
Eliminating the spin-down critical angle in polarizing neutron optics for expanding the polarization bandwidth
A. Zubayer, N. Ghafoor, A. Glavic +6
Polarized neutron scattering is a very important analysis technique for studies of magnetism, spintronics, and high-sensitivity measurements, among others, offering invaluable info…
Neutron optical tuning of Fe/11B4CTi multilayers for optimal polarization and increased reflectivity for polarizing neutron optics
A. Zubayer, N. Ghafoor, K. A. Thorarinsdottir +7
The concept of scattering length density tuning for improved polarization is investigated for Fe/11B4CTi multilayers and compared to the commonly used Fe/Si system in polarizing mu…
Material design optimization for large-m 11B4C-based Ni/Ti supermirror neutron optics
Sjoerd Stendahl, Naureen Ghafoor, Anton Zubayer +4
State-of-the-art Ni/Ti supermirror neutron optics have limited reflected intensity and a restricted neutron energy range due to the interface width. Incorporating low-neutron-absor…
Reflective, polarizing, and magnetically soft amorphous Fe/Si multilayer neutron optics with isotope-enriched 11B4C inducing atomically flat interfaces
A. Zubayer, N. Ghafoor, K. A. Thórarinsdóttir +11
The utilization of polarized neutrons is of great importance in scientific disciplines spanning materials science, physics, biology, and chemistry. Polarization analysis offers ins…