Current COIL research in Lebedev Physical Institute, Samara Branch

The jet type singlet oxygen generator produces O/sub 2/(/sup 1//spl Delta/) at high pressures with high O/sub 2/(/sup 1//spl Delta/) yield. In the traditional version of the JSOG the gas outlet was located in the side wall of the JSOG body. This set-up of the JSOG has low capability for scaling. The counterflow JSOG with vertical gas outlet has no limitation for scaling. The cross section of the reaction zone of JSOG should be equal to the cross section of the laser cavity for scaling. The main goal of the study of Verti-JSOG is to achieve the maximum oxygen flux in the reaction zone of the JSOG for minimizing of the potential large scale JSOG and powerful COIL. At this maximum oxygen flux the O/sub 2/(/sup 1//spl Delta/) yield should be high (>60%) and chlorine utilization should be more than 90%. The maximum oxygen flux is limited by these two main requirements, droplet content at the exit of JSOG and the hydrodynamic stability of JSOG operation. The hydrodynamic stability of the JSOG means that the ejection of the BHP foam into the vacuum duct doesn't take place. The same amount of droplets will be at the exit of any kind of SOG in all cases. But up to any critical value of the droplet content it has no serious effect on COIL operation. The O/sub 2/(/sup 1//spl Delta/) yield and Cl/sub 2/ utilization may be predicted on the basis of a kind of kinetic model.