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Final compression beamline systems for heavy ion fusion drivers

Published online by Cambridge University Press:  24 June 2011

Y.Y. Lau ,
Simon S. Yu ,
John J. Barnard  and
Peter A. Seidl
Y.Y. Lau*
Affiliation:
The Chinese University of Hong Kong, Shatin, Hong Kong
Simon S. Yu
Affiliation:
The Chinese University of Hong Kong, Shatin, Hong Kong Lawrence Berkeley National Laboratory, Berkeley, California
John J. Barnard
Affiliation:
Lawrence Livermore National Laboratory, Livermore, California
Peter A. Seidl
Affiliation:
Lawrence Berkeley National Laboratory, Berkeley, California
*
Address correspondence and reprint requests to: Yuk Yeung Lau, The Chinese University of Hong Kong, Shatin, Hong Kong. E-mail: [email protected]
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Abstract

We have identified a general final compression section for HIF drivers, the section between accelerator and the target. The beams are given a head to tail velocity tilt at the beginning of the section for longitudinal compression, while going through bends that direct it to the target at specific angle. The aim is to get the beams compressed while maintaining a small centroid off-set after the bends. We used a specific example, 1 MJ driver with 500 MeV Rubidium + 1 ion beams. We studied the effect of minimizing dispersion using different bend strategies, and came up with a beamline point design with adiabatic bends. We also identified some factors that lead to emittance growth as well as the minimum pulse length and spot size on the target.

Keywords

Drift compressionHeavy ion fusionMomentum dispersion
Type
Research Article
Information
Laser and Particle Beams , Volume 29 , Issue 3 , September 2011 , pp. 279 - 282
Copyright
Copyright © Cambridge University Press 2011

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References

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