Open AccessDual extraction and collection of ions by parallel electrode method
Author(s) -
Song Xiao-Peng,
Rong Chen,
Bao Cheng-Yu,
Dewu Wang
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.4198
Subject(s) - electrode , ion , materials science , plasma , extraction (chemistry) , atomic physics , faraday cage , faraday cup , laser , voltage , analytical chemistry (journal) , magnetic field , optics , chemistry , physics , ion beam , nuclear physics , organic chemistry , chromatography , quantum mechanics
Ion extraction from laser-induced plasma is one of the key problems in atomic vapor laser isotope separation (AVLIS) engineering. In an electrostatic field, the plasma potential is higher than both electrodes due to the plasma shield effect. And sheaths exist on both sides of the electrodes. Using numerical simulation, it has been proven that ions can be extracted by the positive electrode. In conventional ion extraction experiments using an electrostatic field, the ions are only collected at the negative electrode. We focused on the positive electrode as well as the negative collector in our experiments. The Faraday cups, fix ed on both electrodes, were used to collect the extracted ions and avoid the eff ect of power supply. As a result, the positive electrode can also extract ions. The collection ratio of positive and negative collectors decreases, as the appli ed voltage increases.