Laser isotope separation of uranium is one of the major applications of laser on a large scale in near future. There are many different ways to separate uranium isotope by laser, e.g. AVLIS and MOLIS. In all these met...Laser isotope separation of uranium is one of the major applications of laser on a large scale in near future. There are many different ways to separate uranium isotope by laser, e.g. AVLIS and MOLIS. In all these methods, several subsequent excitation steps must be adopted to pump the desired isotope atoms or molecules to the excited state with high energy, at which they can be ionized or dissociated, then separated from other unexcited展开更多
In 1976 Ambartzumyan et al. reported that the selective photodecomposition reaction of SF6 molecule in isolated-matrix could take place by using TEA CO2 laser. Since then, there were few papers on the photodecompositi...In 1976 Ambartzumyan et al. reported that the selective photodecomposition reaction of SF6 molecule in isolated-matrix could take place by using TEA CO2 laser. Since then, there were few papers on the photodecomposition of other molecules in solid state under intense infrared field. In this paper we study the laser-induced selective photo-decomposition of the solid uranyl formate monohydrate by using TEA CO2 laser and its application to uranium isotope separation.展开更多
Remarkable progresses in LIS of uranium in gases have been made in recent years. However, it seems to be very difficult to separate uramium isotope in liquids by laser owing to the relatively high molecular density in...Remarkable progresses in LIS of uranium in gases have been made in recent years. However, it seems to be very difficult to separate uramium isotope in liquids by laser owing to the relatively high molecular density in liquid media and the rapid vibration energy transfer processes of excited molecules. There has been no successful case reported so far. We are reporting here the exprimental results we obtained of uranium isotope separation a liquid system by using CW CO2 laser.展开更多
It is well known that the reaction between UF<sub>6</sub> and SiH<sub>4</sub> cannot take place below 140℃. Recently we found in our experiments that this reaction can proceed at a high speed ...It is well known that the reaction between UF<sub>6</sub> and SiH<sub>4</sub> cannot take place below 140℃. Recently we found in our experiments that this reaction can proceed at a high speed by catalyzing with HBr at room temperature, producing UF<sub>4</sub> and other products. In this note the HBr-catalyzed reaction of UF<sub>6</sub>+SiH<sub>4</sub> and the kinetic mechanism of the catalyzed reaction are investigated. 1 Experimental UF<sub>6</sub> gas, produced by the 404th Factory of Nuclear Industry Corporation, was vacuum-distilled and cold-trapped several times at dry ice temperature （-78℃） in a metal vacu-展开更多
文摘Laser isotope separation of uranium is one of the major applications of laser on a large scale in near future. There are many different ways to separate uranium isotope by laser, e.g. AVLIS and MOLIS. In all these methods, several subsequent excitation steps must be adopted to pump the desired isotope atoms or molecules to the excited state with high energy, at which they can be ionized or dissociated, then separated from other unexcited
文摘In 1976 Ambartzumyan et al. reported that the selective photodecomposition reaction of SF6 molecule in isolated-matrix could take place by using TEA CO2 laser. Since then, there were few papers on the photodecomposition of other molecules in solid state under intense infrared field. In this paper we study the laser-induced selective photo-decomposition of the solid uranyl formate monohydrate by using TEA CO2 laser and its application to uranium isotope separation.
文摘Remarkable progresses in LIS of uranium in gases have been made in recent years. However, it seems to be very difficult to separate uramium isotope in liquids by laser owing to the relatively high molecular density in liquid media and the rapid vibration energy transfer processes of excited molecules. There has been no successful case reported so far. We are reporting here the exprimental results we obtained of uranium isotope separation a liquid system by using CW CO2 laser.
文摘It is well known that the reaction between UF<sub>6</sub> and SiH<sub>4</sub> cannot take place below 140℃. Recently we found in our experiments that this reaction can proceed at a high speed by catalyzing with HBr at room temperature, producing UF<sub>4</sub> and other products. In this note the HBr-catalyzed reaction of UF<sub>6</sub>+SiH<sub>4</sub> and the kinetic mechanism of the catalyzed reaction are investigated. 1 Experimental UF<sub>6</sub> gas, produced by the 404th Factory of Nuclear Industry Corporation, was vacuum-distilled and cold-trapped several times at dry ice temperature （-78℃） in a metal vacu-
