Applied Science and Convergence Technology 2007; 16(1): 7-14
Published online January 1, 2007
Copyright © The Korean Vacuum Society.
Oh-Sun Kwon,Kwanwoo Shin
A new horizontal neutron reflectometer has been designed and now under construction at the HANARO, 30 ㎿ research reactor, in Daejon, Korea. We performed simulations of neutron ray-tracing to evaluate the performance of all of the optical components of the instrument with a Monte Carlo technique using McStas. The feasible wavelength of the incident neutron beam is 2.5 . It produces a Å q-range up to 0.126 Å?¹ with a supermirror as a deflector. Our studies showed improvement of the performance of the guide tube and monochromators. Although the performance is limited in q-range, it promises to be the first reflectometer in Korea for the study of free surfaces, which is currently in demand.
Keywords: 중성자,수평형 중성자 반사율 측정,McStas,나노 표면구조분석,Neutron,Neutron Reflectometer,Nanointerface