Deutsche Tagung f ¨ur Forschung mit ... - SNI-Portal

Methoden und Instrumentierung Poster: Mi., 14:00–16:30 M-P1
Optimization of the Cairo Fourier Diffractometer Facility for the Polarized
Neutron Diffraction Measurements
Ihab Abdel-Latif 1 , Vitaly Trounov 2
1 Reactor Physics Dept., NRC, Atomic Energy Authority, Abou Zabaal – 2 Petersburg
Nuclear Physics Institute, Gatchina, 188350, Petersburg, Russia
The present work deals with the calculations of the polarized neutron diffraction option
for the Cairo Fourier Diffractometer Facility CFDF. The CFDF is based on the reverse
time of flight RTOF diffraction method using Fourier chopper. The Neutron flux
incident on the sample is 10 6 neutrons.cm −2 .s −1 in the case of non-polarized neutron
diffraction, (in the present time). The polarized neutron PN possibility will decrease
the intensity incident on the sample ∼ 2x10 5 neutrons.cm −2 .s −1 with resolution of
5x10 −3 . The PN option enable studying the magnetic structure and spin density of the
magnetic materials besides suppressing the incoherent contributions in the diffraction
pattern.