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Drift Compression of an Intense Neutralized Ion Beam
by J. Coleman, R. C. Davidson, B. G. Logan, S. S. Yu, A. Anders, P. K. Roy, D. R. Welch, P. C. Efthimion, S. Eylon, E. Henestroza, M. Leitner, F. M. Bieniosek, W. L. Waldron, E. P. Gilson, W. G. Greenway, A. B. Sefkow, C. Thoma ยท 2004
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Longitudinal compression of a velocity-tailored, intense neutralized K{sup +} beam at 300 keV, 25 mA has been demonstrated. The compression takes place in a 1-2 m drift section filled with plasma to provide space-charge neutralization. An induction cell produces a head-to-tail velocity ramp that longitudinally compresses the neutralized beam, enhancing the beam peak current by a factor of 50 and producing a pulse duration of about 3 ns. This measurement has been confirmed independently with two different diagnostic systems.