Development of the slow highly charged ion beam below 100 eV/q from an ECR ion source for ion-atom collision experiments

Abstract

A new experimental apparatus to produce a slow highly charged ion beam in the collisional energy range of below 100 eV/q has been developed and examined in order to study the charge transfer process from highly charged ions to atoms and molecules. The outlines on the composition of apparatus, of which schematic view was shown in a figure, and on the process to produce a slow highly charged ion beam were briefly presented. Highly charged ions were extracted from the beam energy ranging 1 to 5 keV/q into beam line. The ion beam was decelerated down to the beam energy of 100 eV/q, and then collimated by the collimator. The resolving power has been determined through calculation by fitting the measured data in the equation.

高荷電イオンから原子や分子への電荷移動プロセスを研究するために、衝突エネルギー領域内の100eV/q以下の高荷電低速イオンビームを生成する新規の実験装置を開発し試験した。図に概略を示した装置の構成および高荷電低速イオンビームを生成するプロセスを要約して述べた。高荷電イオンはビームラインの1?5keV/qの範囲のビームエネルギーから抽出した。イオンビームを100eV/qのビームエネルギーに減速し、コリメータによりビームを平行化した。分解能は測定データを式に当てはめて計算により求めた。