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CONTENTS con tinued
59 Signalnoise ratios in the control channels of
of schlieren devices I N Volova
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aberrations accuracy amount analyzer angle angular apochromats astigmatism calculated characteristics circle of confusion coating coefficient compensation components construction coordinate corresponding cross section crystal curve density dependence determined device diameter diaphragm diffraction diffraction gratings diffuser chamber displacement distribution electron elements error evaporation film filters flux formulas frequency function glass grating illumination increase instrument interval Izobret Journal of Optical laser layer Leningrad lenses linear located luminance material maximum measurement mechanical Mekh ment method mirror monochromator Moscow objective lens obtained operating optical axis optical coatings Optical Society optical system oscilloscope output PACS numbers parameters photodetector photodiode photographic plane plate polarization possible Press prism Promst pulses radiation ratio reflection reflection coefficient refractive index region rotation sample scanning shown in Fig signal slit Soviet Journal spectral spectrum stabilization surface Table Technol temperature thickness tion transmission values velocity wavelength wedge Znakov