Results 271 to 280 of about 1,617,958 (348)

SPIDER, the Negative Ion Source Prototype for ITER: Overview of Operations and Cesium Injection

IEEE Transactions on Plasma Science, 2023
An overview of the recent operations and the main results of cesium injection in the Source for the Production of Ions of Deuterium Extracted from Rf plasma (SPIDER) negative ion source are described in this contribution.
G. Serianni, E. Sartori, R. Agnello, M. Agostini, M. Barbisan, M. Bigi, M. Boldrin, M. Brombin, V. Candeloro, R. Casagrande, S. Dal Bello, M. Dan, B. P. Duteil, M. Fadone, L. Grando, P. Jain, A. Maistrello, I. Mario, R. Pasqualotto, M. Pavei, A. Pimazzoni, C. Poggi, A. Rizzolo, A. Shepherd, M. Ugoletti, P. Veltri, B. Zaniol, P. Agostinetti, D. Aprile, G. Berton, C. Cavallini, R. Cavazzana, M. Cavenago, G. Chitarin, S. Cristofaro, G. Croci, N. Cruz, M. Dalla Palma, R. Delogu, M. De Muri, M. De Nardi, S. Denizeau, F. Fellin, A. Ferro, E. Gaio, C. Gasparrini, A. Luchetta, F. Lunardon, G. Manduchi, N. Marconato, D. Marcuzzi, O. McCormack, R. Milazzo, A. Muraro, T. Patton, N. Pilan, M. Recchia, A. Rigoni-Garola, F. Santoro, B. Segalini, M. Siragusa, M. Spolaore, C. Taliercio, P. Zaccaria, R. Zagórski, L. Zanotto, M. Zaupa, M. Zuin, V. Toigo   +68 more
semanticscholar   +1 more source

Langmuir Probes as a Tool to Investigate Plasma Uniformity in a Large Negative Ion Source

IEEE Transactions on Plasma Science, 2022
The Source for the Production of Ions of Deuterium Extracted from an RF plasma (SPIDER) experiment is the full-size test-bed of the negative ion sources of ITER neutral beams. It aims to extract and accelerate more than 350 A/ $\text{m}^{2}$ of negative
C. Poggi, M. Spolaore, M. Brombin, R. Cavazzana, M. Fadone, R. Pasqualotto, A. Pimazzoni, N. Pomaro, E. Sartori, G. Serianni, C. Taliercio   +10 more
semanticscholar   +1 more source

A negative ion source test facility.

Review of Scientific Instruments, 2016
Progress is being made in the development of an Ion Source Test Facility (ISTF) by D-Pace Inc. in collaboration with Buckley Systems Ltd. in Auckland, NZ. The first phase of the ISTF is to be commissioned in October 2015 with the second phase being commissioned in March 2016.
S. Melanson, M. Dehnel, D. Potkins, J. Theroux, C. Hollinger, J. Martin, C. Philpott, T. Stewart, P. Jackle, P. Williams, S. Brown, T. Jones, B. Coad, S. Withington   +13 more
semanticscholar   +3 more sources

First measurements of optical emission spectroscopy on SPIDER negative ion source.

Review of Scientific Instruments, 2020
Optical Emission Spectroscopy (OES) on the SPIDER negative ion source has been collecting data since the beginning of operation in Summer 2018. The first few months were devoted to complete the diagnostic commissioning and its integration with the SPIDER
B. Zaniol, M. Barbisan, D. Bruno, R. Pasqualotto, C. Taliercio, M. Ugoletti   +5 more
semanticscholar   +1 more source

Modeling Multicusp Negative-Ion Sources

IEEE Transactions on Plasma Science, 2007
The study of negative-ion production and its optimization is of fundamental importance in the thermonuclear research field. Indeed, negative-ion beams are favorites for the generation of neutral particle beams used in fusion plasma heating because of their higher neutralization efficiency with respect to positive ions.
D Pagano, C Gorse, M Capitelli
openaire   +4 more sources

Structure design and analysis of RF ion source for negative ion source test facility.

Review of Scientific Instruments, 2019
A negative ion source acts as a critical part in a neutral beam injector (NBI). A high current ion source is required for the high-power NBI. In this paper, a prototype radio frequency (RF) ion source and its test facility are developed in the Institute ...
Yuming Gu, Yahong Xie, Jianglong Wei, Yongjian Xu, Jun Li, Caichao Jiang, L. Liang, Yuanlai Xie, Chundong Hu   +8 more
semanticscholar   +1 more source

Multiaperture negative ion source

AIP Conference Proceedings, 2013
The long-pulse multiaperture surface-plasma source with negative ion production on a cesiated grid is under construction at Budker Institute. The ion source includes RF plasma driver, an expansion chamber with multicusp magnetic filed, an external magnetic filter and a four-electrode ion-optical system for beam extraction and acceleration.
Yu. I. Belchenko, A. I. Gorbovsky, A. A. Ivanov, S. G. Konstantinov, A. L. Sanin, I. V. Shikhovtsev, M. A. Tiunov   +6 more
openaire   +1 more source

Negative-ion plasma sources

Review of Scientific Instruments, 1988
Three designs for negative-ion plasma sources are described. Two sources utilize metal hexafluorides such as SF6 and WF6 to scavenge electrons from electron-ion plasmas and the third relies upon surface ionization of alkali halide salts on heated alumina and zirconia.
D. P. Sheehan, N. Rynn
openaire   +1 more source

An advanced negative hydrogen ion source

Review of Scientific Instruments, 2015
The results of investigation of emission productivity of negative particles source with cesiated combined discharge are presented. A cylindrical beam of negative hydrogen ions with density about 2 A/cm2 in low noise mode on source emission aperture is obtained.
Alexey A, Goncharov, Andrey N, Dobrovolsky, Victor P, Goretskii   +2 more
openaire   +2 more sources

Negative-ion sources for ion implantation

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1991
Abstract The development of negative-ion sources has now reached the state where they can be considered for implanter applications. In the following paper a conceptual negative-ion source is described, based on production by dissociative attachment in the plasma.
A.J.T. Holmes, G. Proudfoot
openaire   +1 more source