Isotope separation by laser deflecting an atomic beam is analyzed theoretically. Interacting with a tilted one- dimensional optical molasses, an ytterbium atomic beam is split into multi-beams with different isotopes ...Isotope separation by laser deflecting an atomic beam is analyzed theoretically. Interacting with a tilted one- dimensional optical molasses, an ytterbium atomic beam is split into multi-beams with different isotopes like 172yb, Jv3yb, and J74yb. By using the numerical calculation, the dependences of the splitting angle on the molasses laser intensity and detuning are studied, and the optimal parameters for the isotope separation are also investigated. Furthermore, the isotope separation efficiency and purity are estimated. Finally a new scheme for the efficient isotope separation is proposed. These findings will give a guideline for simply obtaining pure isotopes of various elements.展开更多
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
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
A new kind of MOPA configuration to obtain a high power free-electron laser with very narrow line-width that can satisfy the requirements of some applications such as the laser isotope separation has been proposed, wh...A new kind of MOPA configuration to obtain a high power free-electron laser with very narrow line-width that can satisfy the requirements of some applications such as the laser isotope separation has been proposed, which is investigated by onedimension simulations.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
基金Project supported by the National Basic Research Program of China （Grant No. 2012CB821302）, the National Natural Science Foundation of China （Grant Nos. 11134003 and 10774044）, and the Shanghai Excellent Academic Leaders Program, China （Grant No. 12XD1402400）.
文摘Isotope separation by laser deflecting an atomic beam is analyzed theoretically. Interacting with a tilted one- dimensional optical molasses, an ytterbium atomic beam is split into multi-beams with different isotopes like 172yb, Jv3yb, and J74yb. By using the numerical calculation, the dependences of the splitting angle on the molasses laser intensity and detuning are studied, and the optimal parameters for the isotope separation are also investigated. Furthermore, the isotope separation efficiency and purity are estimated. Finally a new scheme for the efficient isotope separation is proposed. These findings will give a guideline for simply obtaining pure isotopes of various elements.
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A new kind of MOPA configuration to obtain a high power free-electron laser with very narrow line-width that can satisfy the requirements of some applications such as the laser isotope separation has been proposed, which is investigated by onedimension simulations.
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.
