Kato Yushi, Kubo Takashi, Muramatsu Masayuki, Tanaka Kiyokatsu, Kitagawa Atsushi, Yoshida Yoshikazu, Asaji Toyohisa, Sato Fuminobu, Iida Toshiyuki
Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, Suita-Shi, Osaka, Japan.
Rev Sci Instrum. 2008 Feb;79(2 Pt 2):02A312. doi: 10.1063/1.2816708.
Multiply charged Fe ions are produced from solid pure material in an electron cyclotron resonance (ECR) ion source. We develop an evaporator by using induction heating with an induction coil which is made of bare molybdenum wire partially covered by ceramic beads in vacuum and surrounding and heating directly the pure Fe rod. Heated material has no contact with insulators, so that outgas is minimized. The evaporator is installed around the mirror end plate outside of the ECR plasma with its hole grazing the ECR zone. Helium or argon gas is usually chosen for supporting gas. The multicharged Fe ions up to Fe(13+) are extracted from the opposite side of mirror and against the evaporator, and then multicharged Fe ion beam is formed. We compare production of multicharged iron ions by using this new source with our previous methods.
在电子回旋共振（ECR）离子源中，从固态纯材料产生多电荷铁离子。我们通过使用感应加热来开发一种蒸发器，该蒸发器带有一个感应线圈，该感应线圈由在真空中部分覆盖有陶瓷珠的裸钼丝制成，围绕并直接加热纯铁棒。被加热的材料不与绝缘体接触，从而使排气量最小化。蒸发器安装在ECR等离子体外部的镜端板周围，其孔掠过ECR区域。通常选择氦气或氩气作为辅助气体。多电荷铁离子（最高可达Fe(13+)）从镜子的另一侧并对着蒸发器被引出，然后形成多电荷铁离子束。我们将使用这种新源产生多电荷铁离子的情况与我们以前的方法进行了比较。
