dorsal/arxiv
View SchemaThe Beam Halo Experiment at the LEDA Facility
| Authors | P. L. Colestock, T. Wangler, C. K. Allen, R. L. Sheffield, D. Gilpatrick, M. Thuot, the LEDA Operations Team, M. Schulze, A. Harvey |
|---|---|
| Categories | |
| ArXiv ID | physics/0008159 |
| URL | https://arxiv.org/abs/physics/0008159 |
| Journal | eConf C000821 (2000) THB07 |
Abstract
Due to the potentially adverse effects of the generation of halo particles in intense proton beams, it is imperative to have a clear understanding of the mechanisms that can lead to halo formation for current and proposed high- intensity linacs. To this end a theoretical model has been developed, which indicates that protons under the combined influence of strong space charge forces and periodic focussing in a linear transport channel can be kicked into halo orbits. However, no experimental measurements of beam halo in proton beams have yet been carried out. In this paper we report the progress of an effort to carry out an experiment to measure beam-halo using the existing high- intensity proton beam of the LEDA facility. A linear transport channel has been assembled with the appropriate diagnostics for measuring the expected small beam component in the beam halo as a function of beam parameters. The experiment is based on the use of an array of high-dynamic-range wire and beam scrapers to determine the halo and core profiles along the transport channel. Details of the experimental design, the expected halo measurement properties will be presented.
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"abstract": "Due to the potentially adverse effects of the generation of halo particles in\nintense proton beams, it is imperative to have a clear understanding of the\nmechanisms that can lead to halo formation for current and proposed high-\nintensity linacs. To this end a theoretical model has been developed, which\nindicates that protons under the combined influence of strong space charge\nforces and periodic focussing in a linear transport channel can be kicked into\nhalo orbits. However, no experimental measurements of beam halo in proton beams\nhave yet been carried out. In this paper we report the progress of an effort to\ncarry out an experiment to measure beam-halo using the existing high- intensity\nproton beam of the LEDA facility. A linear transport channel has been assembled\nwith the appropriate diagnostics for measuring the expected small beam\ncomponent in the beam halo as a function of beam parameters. The experiment is\nbased on the use of an array of high-dynamic-range wire and beam scrapers to\ndetermine the halo and core profiles along the transport channel. Details of\nthe experimental design, the expected halo measurement properties will be\npresented.",
"arxiv_id": "physics/0008159",
"authors": [
"P. L. Colestock",
"T. Wangler",
"C. K. Allen",
"R. L. Sheffield",
"D. Gilpatrick",
"M. Thuot",
"the LEDA Operations Team",
"M. Schulze",
"A. Harvey"
],
"categories": [
"physics.acc-ph"
],
"journal_ref": "eConf C000821 (2000) THB07",
"title": "The Beam Halo Experiment at the LEDA Facility",
"url": "https://arxiv.org/abs/physics/0008159"
},
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