Employment of astronomical cameras ZWO ASI120MM for investigation of molecular light scattering

Abstract

Molecular light scattering – the method allow to determine the intensity and coefficient of scattering of the substance. For most of aqueous solutions, the value of this coefficient is comparable to that for benzene, but an order of magnitude more than for water. Therefore, it is necessary to register the emitting intensity of the order of . For provide such experiments it has been proposed to used the high sensitive astronomical cameras, for eliminate interference, which allowed with physical-chemical processes. The aim of this work is to apply the high sensitive cameras ZWO ASI120MM in the investigation of molecular light scattering. In astronomical research for study the objects with weak light flows (comets, meteors, asteroids), usually used the CCD-cameras. For comparison three types of cameras, which used in the astronomical observations, are given. The CCD-camera VIDEOSCAN-415-2001 has been used for observation of the comets and asteroids, it has a small sizes and can to accumulate the signal without a system of refrigeration. The camera Watec WAT-902H2 ULTIMATE has high sensitive, that allow to fix the fast flying astronomical objects, meteors for example. The CCD-camera DMK 21AU04.AS, which is an analogue of ZWO ASI120MM, has been used for registration of fast processes. This article shows a successful application of the astronomical cameras ZWO ASI120MM in the investigation of molecular light scattering. The scheme of experimental setup using that camera is presented. It is shown that as a result of the experiments, it is possible to determine the intensity of the refracted and main ray and calculate the scattering coefficient for the solutions under study. For work with images obtained as a result of experiments, special software has been created. The developed program “Light” is allowed to conduct to measure the average value of the intensity. In the course of subsequent experiments, when setting new tasks, the software will be refined and improved. In the future, it is planned to use this technique for investigation the water-protein solutions.