MULTIPLE IONIZATION OF HIGH DENSITY ION BEAM BY HIGH DENSITY PLASMA

估算锂离子单电离成多电离态截面的方法之一是FOLLOWS。从带孔板和能量选择器的束流选择器中引出一小部分由高功率离子二极管产生的高密度锂离子束，注入由DIRCHARGE或LIGHTER产生的高密度等离子体。在束与等离子体相互作用后，用各种诊断方法测量束流。从为此类研究准备ELMENTALY技术的角度出发，我们尝试做了以下几个实验：(1)安装一台小型装置来研究束等离子体相互作用。(2)用常规型无源阳极二极管产生包括锂束在内的各种强流离子束，(3)对相当轻的离子束进行选择试验，(4)激光产生等离子体为有源阳极二极管提供阳极等离子体，以及(5)相应的诊断。首先，我们安装了一套束流等离子体相互作用实验系统，然后我们运行了这个系统。我们用传统的氢碳阳极产生了离子束。由于无源阳极二极管产生的大部分离子束是单电离离子，我们考虑使用激光产生的等离子体作为有源阳极DIODES的阳极等离子体。我们测量了电子束泵浦的KrF激光器产生的等离子体，并对同类型较大的激光器和放电泵浦的KrF激光器的特性进行了更详细的研究。

ONE OF THE METHODS TO ESTIMATE THE CROSS SECTIONS OF THE SINGLY IONIZED LITHIUM ION TO BECOME MULTIPLY IONIZED STATES IS AS FOLLOWS.A SMALL PART OF HIGH DENSITY LITHIUM ION BEAM PRODUCED BY A HIGH POWER ION DIODE IS EXTRACTED FROM A BEAM SELECTOR WITH ORIFICES AND ENERGY SELECTOR,AND INJECTED INTO HIGH DENSITY PLASMAS PRODUCED BY DIRCHARGE OR LASER LIGHT.AFTER THE INTERACTION BETWEEN THE BEAM AND PLASMA,THE BEAM IS MEASURED BY VARIOUS DIAGNOSTIC METHODS.FROM THE POINT OF VIEW OF PREPARING THE ELMENTALY TECHNIQUE FOR THIS KIND OF RESEARCH,WE TRIED TO MAKE SEVERAL EXPERIMENTS AS FOLLWOS.(1) INSTALLMENT OF A SMALL SCALE APPARATUS TO INVESTIGATE THE BEAM PLASMA INTERACTION.(2) PRODUCTION OF VARIOUS KINDS OF INTENSE ION BEAMS INCLUDING LITHIUM BEAM BY PASSIVE ANODE DIODES OF THE CONVENTIONAL TYPE,(3) TEST OF A SELECTOR FOR RATHER LIGHT ION BEAMS,(4) LASER PRODUCED PLASMAS TO SUPPLY THE ANODE PLASMAS OF THE ACTIVE ANODE DIODES,AND (5) THE CORRESPONDING DIAGNOSTICS.AT FIRST,WE INSTALLED A WHOLE SYSTEM FOR THE BEAM PLASMA INTERACTION EXPERIMENT,AND WE THEN OPERATED THIS SYSTEM.NEXT,WE PRODUCED ION BEAMS FROM A CONVENTIONAL HYDRO-CARBON ANODE,AND A SMALL PART OF CARBON BEAMS WAS EXTRACTED FROM THE BEAM SELECTOR.AS THE MOST PART OF ION BEAMS PRODUCED BY THE PASSIVE ANODE DIODE WAS SINGLY IONIZED IONS,WE CONSIDERED TO USE LASER PRODUCED PLASMAS AS THE ANODE PLASMAS OF THE ACTIVE ANODE DIODES.WE MEASURED THE PLASMAS PRODUCED BY AN E-BEAM PUMPED KrF LASER,WHILE THE CHARACTERISTICS OF A LARGER LASER OF THE SAME TYPE AND ALSO A DISCHARGE-PUMPED KrF LASER WERE INVESTIGATED IN MORE DETAIL.