PRODUCTION OF GROUP IIA ATOMIC AND MOLECULAR NEGATIVE-ION BEAMS IN A CESIUM-SPUTTER NEGATIVE-ION SOURCE

Authors
CALABRESE D COVINGTON AM THOMPSON JS
Citation
D. Calabrese et al., PRODUCTION OF GROUP IIA ATOMIC AND MOLECULAR NEGATIVE-ION BEAMS IN A CESIUM-SPUTTER NEGATIVE-ION SOURCE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 379(2), 1996, pp. 192-195
Citations number
16
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
379
Issue
2
Year of publication
1996
Pages
192 - 195
Database
ISI
SICI code
0168-9002(1996)379:2<192:POGIAA>2.0.ZU;2-4
Abstract
The results of an investigation on the production of Group ZIA atomic and molecular negative ion beams formed in a cesium-sputter negative i on source are presented. The sputtering material was formed by pressin g pellets of stoichiometric mixtures of the Group IIA element carbonat es and 10% copper powder. Negative ions of several alkaline-earth elem ents and their oxides have been observed. Beam intensities as high as 180 pA have been observed for Sr- and 20 nA for SrO-.