Modeling of a negative ion source. III. Two-dimensional structure of the extraction region (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Modeling of a negative ion source. III. Two-dimensional structure of the extraction region (Articolo in rivista) (literal)

Anno

• 2010-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1063/1.3431635 (literal)

Alternative label

• F. Taccogna; P. Minelli; S. Longo; M. Capitelli; R. Schneider (2010)
  Modeling of a negative ion source. III. Two-dimensional structure of the extraction region
  in Physics of plasmas
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• F. Taccogna; P. Minelli; S. Longo; M. Capitelli; R. Schneider (literal)

Pagina inizio

• 063502 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://pop.aip.org/resource/1/phpaen/v17/i6/p063502_s1 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 17 (literal)

Rivista

• Physics of plasmas (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 8 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 6 (literal)

Note

• Google Scholar (literal)
• Scopu (literal)
• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Istituto di Metodologie Inorganiche e dei Plasmi (IMIP), Sect. Bari; Dipartimento di Chimica, Università degli Studi di Bari; Institute of Physics, Ernst-Moritz-Arndt University, Greifswald (literal)

Titolo

• Modeling of a negative ion source. III. Two-dimensional structure of the extraction region (literal)

Abstract

• The self-consistent production and transport of H- in the extraction region of a hybrid negative ion source is modeled by means of a two-dimensional particle-in-cell/Monte Carlo simulation. The normal coordinate and one parallel coordinate with respect to the plasma grid are considered to analyze the transport of negative ions. Results show that, in order to establish space charge compensation, the extraction of surface-produced negative ions is limited by the flux of positive ions directed toward the plasma grid surface. An electrostatic barrier appears just in front of the wall, reflecting the majority of surface-produced H- and reducing by this their extraction probability to only 8.5%. Results reproduce the experimentally observed influence of the plasma grid bias voltage on the extraction identifying as a key element the presence of a saddle point in the electric potential distribution. (literal)

Prodotto di

• Istituto di Nanotecnologia (NANOTEC) (Istituto)
• Dinamica di Plasmi e Laser-Plasmi (MD.P03.027.001) (Modulo)

Autore CNR

• SAVINO LONGO (Persona)
• MARIO CAPITELLI (Persona)
• FRANCESCO TACCOGNA (Persona)
• PIERPAOLO MINELLI (Unità di personale interno)

Incoming links:

Prodotto

• Istituto di Nanotecnologia (NANOTEC) (Istituto)
• Dinamica di Plasmi e Laser-Plasmi (MD.P03.027.001) (Modulo)

Autore CNR di

• FRANCESCO TACCOGNA (Persona)
• PIERPAOLO MINELLI (Unità di personale interno)
• SAVINO LONGO (Persona)
• MARIO CAPITELLI (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Physics of plasmas (Rivista)