High-current laser ion source based on a low-power laser
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Published:2003-10
Issue:4
Volume:21
Page:633-638
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ISSN:0263-0346
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Container-title:Laser and Particle Beams
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language:en
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Short-container-title:Laser Part. Beams
Author:
OGAWA M.,YOSHIDA M.,NAKAJIMA M.,HASEGAWA J.,FUKATA S.,HORIOKA K.,OGURI Y.
Abstract
An ion source for generation of low-charged heavy ions has been
developed using low-power KrF excimer and frequency-doubled Nd:YAG
lasers. The ion source was examined with two experimental modes of
low-voltage DC extraction at ∼20 kV and high-voltage pulse
extraction at 150 kV. Normalized emittance of extracted beams composed
of Cu+ and Cu2+ ions was measured to be about
0.05 and 0.8 πmm-mrad for the DC extraction and the pulse
extraction, respectively. Electron temperature was observed by means of
a single probe method to be 0.8 to 2.5 eV, depending on the intensity
of the KrF laser.
Publisher
Hindawi Limited
Subject
Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics
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