A catalogue of losses for a high power, high intensity accelerator

Nghiem, P.; Chauvin, Nicolas; Comunian, M.; Oliver, C.; Uriot, D.

doi:10.1017/s0263034614000391

Cited by 2 publications

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References 5 publications

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“…Beam losses in case of magnet failures have also been analysed [17]. Two cases of failure have been studied: failure of each element individually while all other ones stay at their nominal setting, and global failure of all the elements corresponding, for example, to a general electric breakdown.…”

Section: Studies Of Commissioning Tuning and Accidental Situationsmentioning

confidence: 99%

Design, manufacturing and tests of the LIPAc high energy beam transport line

et al. 2020

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The International Fusion Materials Irradiation Facility (IFMIF) is a projected accelerator-based, D-Li neutron source for fusion reactor materials qualification. LIPAc (Linear IFMIF Prototype Accelerator) is an accelerator aiming to generate a 125 mA, 9 MeV continuous wave deuteron beam, which is currently being commissioned in Rokkasho (Japan) with the objective of validating the IFMIF accelerator design. In LIPAc, a 10 m long High Energy Beam Transport line (HEBT) will connect the exit of the superconducting linac to the beam dump (BD). The HEBT line must accommodate the diagnostics for beam characterization and open the beam at the end to allow its stopping at the BD. The line contains several magnets to control the beam shape and its trajectory, maintaining beam losses below 1 W m−1 along the beamline to limit activation of surrounding elements and allow hands-on maintenance. In this work, the LIPAc HEBT line project is described since its origins. A summary of the beam dynamics calculations and other studies (vacuum, radioprotection, assembly, alignment) that led to the conceptual design of the line is done. After that, the detailed design of the line is presented, justifying the main design decisions taken and finally, the manufacturing and procurement process and the acceptance tests performed are summarized.

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Section: Studies Of Commissioning Tuning and Accidental Situationsmentioning

confidence: 99%

Design, manufacturing and tests of the LIPAc high energy beam transport line

et al. 2020

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“…A complete "catalogue of losses" has been obtained following the above protocol for the IFMIF Prototype accelerator (Nghiem et al, 2014c). Examples of results at full power are given in Figures 4 and 5, which, respectively, show beam loss probability in case of starting from scratch and beam loss in case of sudden failure of the second solenoid of the LEBT.…”

Section: Beam Loss Predictionmentioning

confidence: 99%

Advanced concepts and methods for very high intensity accelerators

et al. 2014

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For very high intensity accelerators, not only beam power but also space charge is a concern. Both aspects 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 is no longer negligible. Its dynamics is different from that of the core and 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 paper presents the advanced concepts and methods for beam analysis, beam loss prediction, beam optimization, beam diagnostic, and beam characterization especially dedicated to very high intensity accelerators. Examples of application of these concepts are given in the case of the IFMIF accelerators.

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A catalogue of losses for a high power, high intensity accelerator

Cited by 2 publications

References 5 publications

Design, manufacturing and tests of the LIPAc high energy beam transport line

Design, manufacturing and tests of the LIPAc high energy beam transport line

Advanced concepts and methods for very high intensity accelerators

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