Effect of the plasma electrode position and shape on the beam intensity of the highly charged ions from RIKEN 18 GHz electron-cyclotron-resonance ion source

Journal Article · Wed Mar 15 00:00:00 EST 2006 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2171671· OSTI ID:20778969

Higurashi, Y; Nakagawa, T; Kidera, M; Aihara, T; Kobayashi, K; Kase, M; Goto, A; Yano, Y ^[1]

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1. RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198 (Japan)

Beam intensities of highly charged Ar ions (Ar{sup 11+,12+}) were measured as a function of plasma electrode position. We observed that the beam intensity of Ar{sup 11+,12+} increased when putting the electrode far from the electron-cyclotron-resonance zone. On the other hand, lower charged heavy ions (Ar{sup 8+,7+}) dramatically decreased. We observed that the intense beam extraction strongly affects the plasma condition. It may be due to the ion pumping effect.

• OSTI ID: 20778969
• Journal Information: Review of Scientific Instruments, Vol. 77, Issue 3; Conference: 11. international conference on ion sources, Caen (France), 12-16 Sep 2005; Other Information: DOI: 10.1063/1.2171671; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ARGON IONS
BEAM EXTRACTION
ECR ION SOURCES
ELECTRODES
ELECTRON CYCLOTRON-RESONANCE
GHZ RANGE 01-100
HEAVY IONS
ION BEAMS
PARTICLE BEAMS
PLASMA