Benchmark of the SLACCAD code against data from the MANITU testbed at IPP

Agostinetti, P.; Chitarin, G.; Franzen, P.; Ruf, B.; Serianni, G.; Veltri, P.

doi:10.1063/1.4792824

Cited by 8 publications

(9 citation statements)

References 17 publications

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“…The electric fields come from SLACCAD, see section 2.6 One million primary D − particles are launched in the EAMCC simulation. A beam halo is simulated in EAMCC by starting an additional 8% negative ions from an annulus around each aperture on the metal surfaces on the downstream side of the plasma grid, an assumption that is based on some experimental evidence [52,53]. As caesium from the ion source can migrate to the downstream surface of the plasma grid, conversion of neutral D° to D − must occur.…”

Section: Eamcc Simulation Of the Present Designmentioning

confidence: 99%

Physics design of the HNB accelerator for ITER

et al. 2015

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The physics design of the accelerator for the heating neutral beamline on ITER is now finished and this paper describes the considerations and choices which constitute the basis of this design. Equal acceleration gaps of 88 mm have been chosen to improve the voltage holding capability while keeping the beam divergence low. Kerbs (metallic plates around groups of apertures, attached to the downstream surface of the grids) are used to compensate for the beamlet–beamlet interaction and to point the beamlets in the right direction. A novel magnetic configuration is employed to compensate for the beamlet deflection caused by the electron suppression magnets in the extraction grid. A combination of long-range and short-range magnetic fields is used to reduce electron leakage between the grids and limit the transmitted electron power to below 800 kW.

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Section: Eamcc Simulation Of the Present Designmentioning

confidence: 99%

Physics design of the HNB accelerator for ITER

et al. 2015

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“…These approximations have sufficed to achieve the stability of numerical trends and the reproducibility of results. Moreover, benchmarking of acceleration and transport codes with real experiments has shown, in general, a satisfactory overall agreement with the measurements performed in existing negative ion accelerators [13][14][15], motivating their extensive employment in the design phase of the future neutral beam injectors (NBIs) of fusion experiments such as ITER and DEMO.…”

Section: Introductionmentioning

confidence: 74%

Ion beam transport: modelling and experimental measurements on a large negative ion source in view of the ITER heating neutral beam

et al. 2016

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“…OPERA 3D [88]), or codes developed in the past within the ion beam community (e.g. SLACCAD [89], EAMCC [90]). Dedicated numerical models were also specifically developed or improved, verified or validated in dedicated experiments when possible).…”

Section: Numerical Toolsmentioning

confidence: 99%

The PRIMA Test Facility: SPIDER and MITICA test-beds for ITER neutral beam injectors

Toigo¹,

Piovan²,

Bello³

et al. 2017

New J. Phys.

157

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The ITER Neutral Beam Test Facility (NBTF), called PRIMA (Padova Research on ITER Megavolt Accelerator), is hosted in Padova, Italy and includes two experiments: MITICA, the full-scale prototype of the ITER heating neutral beam injector, and SPIDER, the full-size radio frequency negative-ions source. The NBTF realization and the exploitation of SPIDER and MITICA have been recognized as necessary to make the future operation of the ITER heating neutral beam injectors efficient and reliable, fundamental to the achievement of thermonuclear-relevant plasma parameters in ITER. This paper reports on design and R&D carried out to construct PRIMA, SPIDER and MITICA, and highlights the huge progress made in just a few years, from the signature of the agreement for the NBTF realization in 2011, up to now-when the buildings and relevant infrastructures have been completed, SPIDER is entering the integrated commissioning phase and the procurements of several MITICA components are at a well advanced stage.

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Benchmark of the SLACCAD code against data from the MANITU testbed at IPP

Cited by 8 publications

References 17 publications

Physics design of the HNB accelerator for ITER

Physics design of the HNB accelerator for ITER

Ion beam transport: modelling and experimental measurements on a large negative ion source in view of the ITER heating neutral beam

The PRIMA Test Facility: SPIDER and MITICA test-beds for ITER neutral beam injectors

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