Production of multicharged iron ions with inductively heated vapor source

Abstract

Articles you may be interested inImproved efficiency and precise temperature control of low-frequency induction-heating pure iron vapor source on ECR ion source AIP Conf.Multicharged ion source based on Penning-type discharge with electron cyclotron resonance heating by millimeter wavesa) Rev. Sci. Instrum. 83, 02A325 (2012); 10.1063/1.3669793 Induction heating pure vapor source of high temperature melting point materials on electron cyclotron resonance ion sourcea) Rev. Sci. Instrum. 81, 02A322 (2010); 10.1063/1.3272830 Multicharged iron ions produced by using induction heating vapor sourcea) Rev. Sci. Instrum. 79, 02A312 (2008); 10.1063/1.2816708 High current density production of multicharged ions with ECR plasma heated by gyrotron transmitter Rev. Sci. Instrum. 73, 528 (2002);Multiply charged Fe ions are produced from solid material in a 2.45 GHz electron cyclotron resonance ͑ECR͒ ion source. We develop an evaporator by induction heating with an induction coil covered by ceramics in vacuum and surrounding the pure Fe rod with noncontact. The typical power and the frequency of the induction currents range from 300 to 800 W and from 30 to 40 kHz, respectively. The evaporator is inserted into the ECR plasma from the mirror endplate along the geometrical axis of the mirror field. Argon gas is usually chosen for supporting gas, and the working pressure is about 10 −4 -10 −3 Pa. The multicharged Fe ions are extracted from the opposite side of mirror and against the evaporator, and then multicharged Fe ion beam is formed. We compare the production of multicharged iron ions by using this source with our previous methods.

Multicharged iron ions produced by using induction heating vapor source

“…We used the Cu twisted wire coil covered by water-soluble alumina and the iron rod with molybdenum radiation shield, and showed first by means of evidence that the multicharged iron could be produced by induction heating pure iron directly in the ECRIS. 4 This coil releases serious outgas in high temperature.…”

“…We have already conducted preliminary experiment in the TAIKO device ͑2.45 GHz͒ at the first, and succeeded in producing the multicharged iron ions. 4 The conception of induction heating is typically described in detail in the previous review. 5 The feature of our method is induction heating directly evaporation materials, and different from the previous method by using the crucible basically.…”

Production of multicharged metal ion beams on the first stage of tandem-type ECRIS

“…We have already developed induction heating (IH) evaporator for solid state metal. 2,3 The structure is complicated, and then vapor flux is rather than small. Therefore, we developed new radiation heating evaporator and directly ohmic heating evaporator which can generate large vapor flux.…”

Bio-Nano ECRIS: An electron cyclotron resonance ion source for new materials production

“…Bio-Nano ECRIS: An electron cyclotron resonance ion source for new materials production a… T. Uchida, 1,b͒ H. Minezaki, 2 K. Tanaka, 3 M. Muramatsu, 4 T. Asaji, 3 Y. Kato,5 A. Kitagawa, 4 S. Biri, 6 We developed an electron cyclotron resonance ion source ͑ECRIS͒ for new materials production on nanoscale.…”