Paper  Title  Page 

MOPOR032  Using of the MENT Method for Reconstruction of 2D Particle Distributions in IFMIF Accelerators  668 


Beam particles are characterized by their coordinates in real spaces or phase spaces that are at least twodimensional. It is often necessary to reconstruct such a 2Ddistribution from the knowledge of only its projections on some axes, either for making use of tomography measurement results or for setting up an input beam for transport simulations. In this article, the use of the MENT (Maximum Entropy) reconstruction method is reported for the IFMIF accelerators where high intensity beam distributions are far from Gaussian ones.  
DOI •  reference for this paper ※ DOI:10.18429/JACoWIPAC2016MOPOR032  
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THYA01  Advanced Concepts and Methods for Very High Intensity Linacs  3155 


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.  
Slides THYA01 [6.177 MB]  
DOI •  reference for this paper ※ DOI:10.18429/JACoWIPAC2016THYA01  
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MOPOY053  The SARAFLINAC Project Status  971 


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 (SARAFLINAC Project). This paper presents to the accelerator community the status at March 2016 of the SARAFLINAC Project.  
DOI •  reference for this paper ※ DOI:10.18429/JACoWIPAC2016MOPOY053  
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THPMR014  Corehalo Limits and Beam Haloformation Dynamic  3417 


In high intensity linear accelerators, space charge related instabilities and effects are the cause of emittance increase and beam losses. The mechanism of halo formation due to a mismatched beam causing parametric resonances and energy transfer between phasespaces is one of them. The previously defined one dimensional corehalo limit [1][2] was extended to two dimensional distributions [3][4]. This halo characterization method is applied to a classical case of transport for halo formation studies: the transport of a mismatched beam. Our method provides a corehalo limit that matches the expected halo formation mechanism with a very good precision.
* Appl. Phys. Lett. 104, 074109 (2014) ** Phys. Plasmas, 22, 083115, (2015) *** IPAC (2015) MOPWA010 **** TBP 

DOI •  reference for this paper ※ DOI:10.18429/JACoWIPAC2016THPMR014  
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