Optimization of a beam line equipped with a laser ion source

Shibuya, S.; Noda, K.; Nakamura, S.; Grieser, M.

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Optimization of a beam line equipped with a laser ion source

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Grieser, M.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Shibuya, S., Noda, K., Nakamura, S., & Grieser, M. (2005). Optimization of a beam line equipped with a laser ion source. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 240(1-2), 26-31.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-8A60-3

Abstract

Progress in high-power short-pulsed laser technology has enabled us to build a high-performance laser ion source, which can provide ion beams with rather high-energy from a high-density plasma. An ion beam produced by the laser source has a wide momentum spread, a small transverse emittance and a large divergence, like a white beam from a point source. A phase-rotation method has been proposed to reduce the momentum spread in order to use the laser-produced ion beam practically under the above conditions. This phase-rotation method inevitably increases the transverse emittance due to sudden compression of the momentum spread in a phase-rotation cavity. We report on beam optics optimization with two kinds of magnetic lens system, solenoid and quadrupole, and compare their performance.