A computer controlled system for studying gas-solid state reactions in X-ray diffraction experiments

An automated system for temperature and pressure control in a reaction chamber for studying gas-solid state reactions in X-ray diffraction experiments with the use of synchrotron radiation (SR) is designed at the Siberian Synchrotron Radiation Center (Budker INP, Novosibirsk). A computer algorithm for controlling the temperature in the reaction chamber was developed. An analysis of the thermal characteristics of the reaction chamber was carried out in the 293–800 K temperature range and in the 0–0.2 MPa range of pressures with an accuracy of 1–3 K and 0.01 MPa respectively. Test experiments on studying the thermal decomposition of some organo-metallic compounds were carried out with the use of the designed system.