Core-halo issues for a very high intensity beam

Journal Article · Mon Feb 17 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4866400· OSTI ID:22283109

Nghiem, P. A. P.; Chauvin, N.; Uriot, D. ^[1]; Simeoni, W. ^[2]

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1. CEA/DSM/IRFU, Centre de Saclay, 91191 Gif-sur-Yvette Cedex (France)
2. Instituto de Física, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, RS (Brazil)

The relevance of classical parameters like beam emittance and envelope used to describe a particle beam is questioned in case of a high intensity accelerator. In the presence of strong space charge effects that affect the beam differently following its density, the much less dense halo part behaves differently from the much denser core part. A method for precisely determining the core-halo limit is proposed, that allows characterizing the halo and the core independently. Results in 1D case are given and discussed. Expected developments extending the method to 2D, 4D, or 6D phase spaces are examined.

• OSTI ID: 22283109
• Journal Information: Applied Physics Letters, Vol. 104, Issue 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BEAM CURRENTS
BEAM EMITTANCE
PARTICLE BEAMS
PHASE SPACE
SPACE CHARGE