RATAN-600 panel topography before and after surface correction with the use of new LOMO optical(laser) instrument

(V.Khaikin, S.Golosova, F.Danilevich et al. XX ESTEC Antenna Workshop, 1997) .

RMS surface errora are 1.2 mm and 0.18 mm correspondently. Repeatability of  successively measured maps is 0.06 mm.