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Montecarlo Simulation of the thermal neutron reflectometer with horizontal sample geometry for surface characterization of nanostructured thin films  

Lee Chong Oh (Gwangju Institute of Science and Technology)
Shin Kwanwoo (Gwangju Institute of Science and Technology)
Lee Jeong Soo (Korea Atomic Energy Research Institute)
Cho Sang Jin (Korea Atomic Energy Research Institute)
Lee Chang Hee (Korea Atomic Energy Research Institute)
So Ji Yong (Korea Atomic Energy Research Institute)
Publication Information
Journal of the Korean Vacuum Society / v.14, no.3, 2005 , pp. 119-125 More about this Journal
Abstract
The horizontal reflectometer, which uses a neutron beam in the reactor, provides scientists a set of unique tools offering destruction-free investigation of biological membranes in the native-like environments in nano-meter scale. As an intial stage for the development of the first Korean neutron reflectometer with a horizontal sample geometry, we performed the instrumental simulation using MCSTAS, Monte Carlo Simulations of Triple Axis Spectrometers for neutron ray-tracing simulation. The results indicated that modeling of the overall instrument geometry based on the thermal neutron source with a wavelength of 2.55 $2.5{\AA}$ at HANARO was successfully performed, and further the optimization of the individual components of the instrument, including the collimator, monochromators, filter and supermirror has been made.
Keywords
Neutron; Hotizontal Reflectometer; MCSTAS;
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