Clementson J, Beiersdorfer P, Roquemore A L, Skinner C H, Mansfield D K, Hartzfeld K, Lepson J K
Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
Rev Sci Instrum. 2010 Oct;81(10):10E326. doi: 10.1063/1.3499607.
Tungsten particles have been introduced into the National Spherical Torus Experiment (NSTX) in Princeton with the purpose to investigate the effects of tungsten injection on subsequent plasma discharges. An experimental setup for the study of tungsten particle transport is described where the particles are introduced into the tokamak using a modified particle dropper, otherwise used for lithium-powder injection. An initial test employing a grazing-incidence extreme ultraviolet spectrometer demonstrates that the tungsten-transport setup could serve to infer particle transport from the edge to the hot central plasmas of NSTX.
钨颗粒已被引入普林斯顿的国家球形托卡马克实验（NSTX），目的是研究钨注入对后续等离子体放电的影响。本文描述了一种用于研究钨颗粒输运的实验装置，其中使用一个经过改装的颗粒滴管将颗粒引入托卡马克，该滴管原本用于锂粉注入。首次使用掠入射极紫外光谱仪进行的测试表明，钨输运装置可用于推断NSTX中从边缘到热中心等离子体的颗粒输运情况。
