Negative ion formation at a barium surface in contact with a hydrogen plasma

Journal Article · Mon Nov 09 04:00:00 EST 1987 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.98613· OSTI ID:6085471

van Os, C F.A.; Heeren, R M.A.; van Amersfoort, P W

Measurements on the production of negative hydrogen ions at a barium surface, in contact with a hydrogen plasma, are presented and discussed. In spite of the high work function of barium compared to more conventional cesiated converter surfaces, considerable yields of negative ions were produced. Conversion efficiencies up to 4% were achieved. No negative barium ions were observed.

• Research Organization: Association EURATOM-FOM, FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands
• OSTI ID: 6085471
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 51:19; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALKALI METALS
ALKALINE EARTH METALS
ANIONS
BARIUM
CESIUM
CHARGED PARTICLES
EFFICIENCY
ELEMENTS
FABRICATION
FUNCTIONS
HYDROGEN IONS
HYDROGEN IONS 1 MINUS
ION SOURCES
IONS
METALS
PLASMA
WORK FUNCTIONS