Thermal analyses for the design of the ITER-NBI arc driven ion source

Peruzzo, S.; Anaclerio, Giancarlo; Bello, S. Dal; Palma, M. Dalla; Nocentini, R.; Zaccaria, P.

doi:10.1016/j.fusengdes.2007.05.071

Cited by 1 publication

(2 citation statements)

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“…The configuration featuring the RF ion source with only the SINgle GAP (SINGAP) accelerator has been considered in detail, leaving aside the adaptation with the multi-aperture multi-grid (MAMuG) reference solution. The final design requires no modification of the SINGAP accelerator part adjacent to the ion source, called extractor [6,7].…”

Section: Beam Source Assembly and Integration In The Injectormentioning

confidence: 99%

“…The external side of the structure that supports the ion source has not been changed, therefore the support and positioning system for the whole beam source assembly, in SINGAP configuration, is valid for both the RF driven ion source and the reference ion source, as it is connected on the outside of this structure [3,6,7].…”

Section: Beam Source Assembly and Integration In The Injectormentioning

confidence: 99%

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Design of the RF ion source for the ITER NBI

Marcuzzi

Agostinetti

Palma

et al. 2007

Fusion Engineering and Design

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A radio frequency (RF) driven negative ion source has been designed for the ITER neutral beam injectors, as an alternative to the traditional arc driven solution.The main advantage of this technology is to avoid the presence of the filaments, that require periodic maintenance and consequently frequent shutdowns.The requirements for the ion source of the ITER NBI are to provide a uniform flux of D − /H − to the plasma grid of the accelerator that will result in a beam current of 40 A at 1 MeV. The present specification is for a filling pressure of 0.3 Pa. The ion source needs to provide 20/28 mA/cm 2 D − /H − current density across the 0.58 m × 1.54 m aperture array for 3600 s.The source, consisting of a main chamber facing the plasma grid, of eight RF drivers and the auxiliary systems for power transfer, cooling and diagnostic purposes, is housed in the same quasi-cylindrical structure that supports the arc driven solution.Specific electric and hydraulic circuits have been designed and verified. In the paper the analyses performed for the design of the components are presented in detail.

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Section: Beam Source Assembly and Integration In The Injectormentioning

confidence: 99%

Section: Beam Source Assembly and Integration In The Injectormentioning

confidence: 99%