Physics – Instrumentation and Detectors
Scientific paper
2011-09-22
Physics
Instrumentation and Detectors
Scientific paper
The setup, capabilities and operation parameters of the neutron reflectometer GINA, the recently installed "Grazing Incidence Neutron Apparatus" at the Budapest Neutron Centre, are introduced. GINA, a dance-floor-type, constant-energy, angle-dispersive reflectometer is equipped with a 2D position-sensitive detector to study specular and off-specular scattering. Wavelength options between 3.2 and 5.7 {\AA} are available for unpolarized and polarized neutrons. Spin polarization and analysis are achieved by magnetized transmission supermirrors and radio-frequency adiabatic spin flippers. As a result of vertical focusing by the five-element (pyrolytic graphite) monochromator the reflected intensity from a 20x20 mm sample has doubled. GINA is dedicated to studies of magnetic films and heterostructures, but unpolarized options for non-magnetic films, membranes and other surfaces are also provided. Shortly after its startup, reflectivity values as low as 3x10-5 have been measured on the instrument. The facility is now open for the international user community, but its development is continuing mainly to establish new sample environment options, the spin analysis of off-specularly scattered radiation and further decrease of the background.
Bottán L.
Deak László
Endroczi G.
Füzi J.
Major J. J.
No associations
LandOfFree
GINA - A Polarized Neutron Reflectometer at the Budapest Neutron Centre does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with GINA - A Polarized Neutron Reflectometer at the Budapest Neutron Centre, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GINA - A Polarized Neutron Reflectometer at the Budapest Neutron Centre will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-262654