| Autor: |
Syromyatnikov, V. G., Grigoryeva, N. A., Grigoryev, S. V. |
| Zdroj: |
Journal of Surface Investigation: X-Ray, Synchrotron & Neutron Techniques; Aug2023, Vol. 17 Issue 4, p818-825, 8p |
| Abstrakt: |
The concept of a two-mode neutron reflectometer with a polarizer, two spin flippers and an analyzer of polarization after passing through the sample is presented. The reflectometer designed for the DARIA compact neutron source is planned to measure the spectrum of a reflected white neutron beam using the time-of-flight method at a fixed grazing angle with the possibility of using both polarized and nonpolarized neutrons. The main geometric and physical parameters of the neutron reflectometer are presented. With a neutron-pulse duration of τ = 100 µs and a total length of the time-of-flight path length L = 8 m, the pulse-repetition rate can reach f = 165 Hz for the wavelength range Δλ = 3 Å and resolution Δλ ≅ 0.05 Å. The use of polarization-analysis elements of a reflectometer at a beam polarization exceeding 96% and an efficiency of the spin flippers close to unity makes it possible to study thin-film magnetic nanostructures in detail. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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