Open AccessSuppression of heavy impurities in the ST Tokamak
Author(s) -
E. Meservey,
N.L. Bretz,
D. Dimock,
E. Hinnov
Publication year - 1975
Language(s) - English
Resource type - Reports
DOI - 10.2172/4068308
Subject(s) - impurity , tokamak , oxygen , atomic physics , materials science , chemistry , plasma , nuclear physics , physics , organic chemistry
Two different discharges in the ST Tokamak are described: A discharge dominated by high-Z (iron) impurity (Case A), and one dominated by low-Z (oxygen) impurity (Case B). The oxygen-dominated discharge shows higher electron temperature and longer containment time than the iron-dominated discharge. Suppression of Fe and Mo impurities has been achieved by pulsing in air for a few hundred shots. (auth