CEA Studies on Halo Formation

Pichoff, N.; Beauvais, P-Y.; Duperrier, R.; Haouat, G.; Lagniel, Jean-Michel; Uriot, D.

doi:10.1063/1.1638319

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…In tracking studies parametric halo is usually induced using initial mismatch, often in the form of explicit beam eigenmodes. For 1D, 2D, and 3D beams one finds one, two, or three core eigenmodes with distinct eigenfrequencies which have been derived for instance in [1] or [2]. Energy transfer from the core to the single particle oscillations [3,4] can drive core particles to large amplitude radii and thus create a low-density halo surrounding the core.…”

Section: Introductionmentioning

confidence: 99%

Beam halo in high-intensity hadron accelerators caused by statistical gradient errors

Gerigk

2004

Phys. Rev. ST Accel. Beams

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The particle-core model for a continuous cylindrical beam is used to describe the motion of single particles oscillating in a uniform linear focusing channel. Using a random variation of the focusing forces, the model is deployed as proof of principle for the occurrence of large single particle radii without the presence of initial mismatch of the beam core. Multiparticle simulations of a periodic 3D transport channel are then used to qualify and quantify the effects in a realistic accelerator lattice.

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Section: Introductionmentioning

confidence: 99%

Beam halo in high-intensity hadron accelerators caused by statistical gradient errors

Gerigk

2004

Phys. Rev. ST Accel. Beams

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Experimental characterization of gaseous ion beams produced with the advanced ion source for hadrontherapy (AISHa) at 18 GHz

Castro

Leonardi

Chines

et al. 2023

Review of Scientific Instruments

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The Advanced Ion Source for Hadrontherapy (AISHa) is an electron cyclotron resonance ion source operating at 18 GHz, developed at the Istituto Nazionale di Fisica Nucleare-Laboratori Nazionali del Sud, with the aim of producing high intensity and low emittance highly charged ion beams for hadrontherapy purposes. Moreover, thanks to its unique peculiarities, AISHa is a suitable choice for industrial and scientific applications. In the framework of the INSpIRIT and IRPT projects, in collaboration with the Centro Nazionale di Adroterapia Oncologica, new candidates for cancer treatment are being developed. In particular, the paper presents the results of the commissioning of four ion beams of interest for hadrontherapy: H+, C4+, He2+, and O6+. Their charge state distribution in the best experimental conditions, their emittance, and brightness will be critically discussed, along with the role of ion source tuning and space charge effects in beam transport. Perspectives for further developments will also be presented.

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CEA Studies on Halo Formation

Cited by 2 publications

References 3 publications

Beam halo in high-intensity hadron accelerators caused by statistical gradient errors

Beam halo in high-intensity hadron accelerators caused by statistical gradient errors

Experimental characterization of gaseous ion beams produced with the advanced ion source for hadrontherapy (AISHa) at 18 GHz

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