Thumbnail
Access Restriction
Open

Author Pardo, R. C. ♦ Harkewicz, R. ♦ Billquist, P. J.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ BISMUTH IONS ♦ CHARGE STATES ♦ TIME DEPENDENCE ♦ MULTICHARGED IONS ♦ LASER RADIATION ♦ ABLATION ♦ ELECTRON DENSITY ♦ ELECTRON TEMPERATURE ♦ PLASMA DIAGNOSTICS
Abstract The production of high charge-state ions in an electron cyclotron resonance ion source has been studied as a function of time using a pulsed Nd:YAG laser to ablate heavy metal (bismuth) ions into the plasma. The time required to produce a charge state has been measured by observing the arrival time of the ions at a Faraday cup after the source analyzing magnet. The results of these measurements have been compared to a simple sequential ionization model and are found to be in good agreement with the data. The data can be used to characterize the plasma electron density, electron temperature, and neutral atom density, since these are the only three adjustable parameters in the model and are sufficient to achieve good agreement for the time evolution of all observed charge states. {copyright} {ital 1996 American Institute of Physics.}
ISSN 00346748
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-04-01
Publisher Place United States
Journal Review of Scientific Instruments
Volume Number 67
Issue Number 4


Open content in new tab

   Open content in new tab