DU Weitao SONG Li WANG Yuzhu LUO Hongxin ZHANG Yifei WANG Jie. Studies of the super-smooth mirror roughness by grazing incidence X-ray scattering method[J]. Nuclear techniques, 2012, 35(4): 255-259.
DU Weitao SONG Li WANG Yuzhu LUO Hongxin ZHANG Yifei WANG Jie. Studies of the super-smooth mirror roughness by grazing incidence X-ray scattering method[J]. Nuclear techniques, 2012, 35(4): 255-259.DOI:
surface roughness of two large-size super-smooth mirrors
of 210 and 320 mm in length
was studied by grazing incidence X-ray scattering method(GIXRS).A two-dimensional theoretical model was derived based on Tong’s result in 1993
so as to the correlate power spectrum density(PSD) of a mirror surface to the intensity distribution of X-ray scattering.The two mirrors were measured on Beamline 16B at Shanghai Synchrotron Radiation Facility and the data were analyzed.The results showed that the root mean square of the surface roughness calculated using the model agreed well with that measured by a white-light 3D profiler.