Minipermanent magnet high-current microwave ion source

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

DOI:https://doi.org/10.1063/1.2150807· OSTI ID:20778945

Zhizhong, Song; Shixiang, Peng; Jinxiang, Yu; Jianchuan, Ming; Zhongxi, Yuan; Feng, Qian; Zhiyu, Guo ^[1]

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1. MOE Key Laboratory of Heavy Ion Physics, Peking University, Beijing 100871 (China)

A 2.45 GHz high-current microwave ion source with permanent magnet was developed at Peking University. The source body is about 10 cm in diameter and 10 cm in height, and its weight is less than 5 kg. It can operate in both pulse and continuous wave (cw) modes. In pulse mode, more than 100 mA hydrogen ion current was extracted from a 5 mm ion extraction aperture, when the microwave power is 500 W and the extraction voltage is 45 kV, which corresponds to a beam density of 500 mA/cm{sup 2}. In cw mode, up to 60 mA of hydrogen ion current can be extracted, and the beam density is 300 mA/cm{sup 2} at the same conditions. The proton ratio is about 80% and the normalized root-mean-square emittance is less than 0.1{pi} mm mrad in both modes.

• OSTI ID: 20778945
• 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: 10.1063/1.2150807; (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
APERTURES
BEAM CURRENTS
DENSITY
GHZ RANGE 01-100
HYDROGEN IONS
ION SOURCES
MICROWAVE RADIATION
PARTICLE BEAMS
PERMANENT MAGNETS
PROTONS
PULSES