| Paper |
Title |
Page |
| THYA01 |
Advanced Concepts and Methods for Very High Intensity Linacs |
3155 |
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- P.A.P. Nghiem, N. Chauvin, D. Uriot
CEA/DSM/IRFU, France
- M. Comunian
INFN/LNL, Legnaro (PD), Italy
- C. Oliver
CIEMAT, Madrid, Spain
- W. Simeoni
IF-UFRGS, Porto Alegre, Brazil
- M. Valette
CERN, Geneva, Switzerland
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For very high intensity linacs, both beam power and space charge should be taken into consideration for any analysis of accelerators aiming at comparing their performances and pointing out the challenging sections. As high beam power is an issue from the lowest energy, careful and exhaustive beam loss predictions have to be done. High space charge implies lattice compactness making the implementation of beam diagnostics very problematic, so a clear strategy for beam diagnostic has to be defined. Beam halo becomes no longer negligible, and it plays a significant role in the particle loss process. Therefore, beam optimization must take the halo into account and beam characterization must be able to describe the halo part in addition to the core one. This presentation discusses advanced concepts and methods for beam analysis, beam loss prediction, beam optimization, beam diagnostic and beam characterization especially dedicated to very high intensity accelerators.
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Slides THYA01 [6.177 MB]
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| DOI • |
reference for this paper
※ DOI:10.18429/JACoW-IPAC2016-THYA01
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| MOPOY053 |
The SARAF-LINAC Project Status |
971 |
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- N. Pichoff, N. Bazin, L. Boudjaoui, P. Brédy, D. Chirpaz-Cerbat, R. Cubizolles, B. Dalena, G. Ferrand, B. Gastineau, P. Gastinel, P. Girardot, F. Gougnaud, P. Hardy, M. Jacquemet, F. Leseigneur, C. Madec, N. Misiara, P.A.P. Nghiem, D. Uriot
CEA/IRFU, Gif-sur-Yvette, France
- P. Bertrand, M. Di Giacomo, R. Ferdinand, J.-M. Lagniel, J.F. Leyge, M. Michel
GANIL, Caen, France
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SNRC and CEA collaborate to the upgrade of the SARAF accelerator to 5 mA CW 40 MeV deuteron and proton beams (Phase 2). CEA is in charge of the design, construction and commissioning of the superconducting linac (SARAF-LINAC Project). This paper presents to the accelerator community the status at March 2016 of the SARAF-LINAC Project.
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| DOI • |
reference for this paper
※ DOI:10.18429/JACoW-IPAC2016-MOPOY053
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| WEPOY033 |
Space Charge Compensation in Low Energy Beam Lines |
3055 |
| SUPSS065 |
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- F. Gérardin, N. Chauvin, D. Uriot
CEA/IRFU, Gif-sur-Yvette, France
- M.A. Baylac, D. Bondoux, F. Bouly
LPSC, Grenoble Cedex, France
- A. Chancé, O. Napoly, N. Pichoff
CEA/DSM/IRFU, France
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The dynamics of a high intensity beam with low energy is governed by its space-charge forces which may be responsible of emittance growth and halo formation due to their non-linearity. In a low energy beam transport (LEBT) line of a linear accelerator, the propagation of a charged beam with low energy causes the production of secondary particles created by the interaction between the beam and the background gas present in the accelerator tube. This phenomenon called space-charge compensation is difficult to characterize analitically. In order to obtain some quantitative to characterize the space-charge compensation (or neutralization), numerical simulations using a 3D PIC code have been implemented.
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| DOI • |
reference for this paper
※ DOI:10.18429/JACoW-IPAC2016-WEPOY033
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