Design and simulation of a multi-beamlet injector for a highcurrent accelerator

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A multi-beamlet approach to a high current ion injector, whereby a large number of beamlets are accelerated and then merged to form a single beam, offers a number of potential advantages over a monolithic single beam injector. These advantages include a smaller transverse footprint, more control over the shaping and aiming of the beam, and more flexibility in the choice of ion sources. A potential drawback however is a larger emittance. In this paper, we seek to understand the merging of the beamlets and how it determines the emittance. When the constraints imposed by beam propagation physics and practical engineering ... continued below

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Grote, David P.; Henestroza, Enrique & Kwan, Joe W. February 14, 2002.

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A multi-beamlet approach to a high current ion injector, whereby a large number of beamlets are accelerated and then merged to form a single beam, offers a number of potential advantages over a monolithic single beam injector. These advantages include a smaller transverse footprint, more control over the shaping and aiming of the beam, and more flexibility in the choice of ion sources. A potential drawback however is a larger emittance. In this paper, we seek to understand the merging of the beamlets and how it determines the emittance. When the constraints imposed by beam propagation physics and practical engineering issues are included, the design is reduced to a few free parameters. We describe the physics design of a multi-beamlet injector, and produce a design for an example set of parameters. Extensive use of 2-D and 3-D particle simulations was made in understanding the injector. Design tolerances and sensitivities are discussed in general and in relation to the example.

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  • Journal Name: Physical Review Special Topics - Accelerators and Beams; Journal Volume: 6; Related Information: Journal Publication Date: 2003

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  • Report No.: LBNL--49651
  • Report No.: HIFAN 1143
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 860450
  • Archival Resource Key: ark:/67531/metadc781461

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  • February 14, 2002

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • April 1, 2016, 7:57 p.m.

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Grote, David P.; Henestroza, Enrique & Kwan, Joe W. Design and simulation of a multi-beamlet injector for a highcurrent accelerator, article, February 14, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc781461/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.