"Wild Cables" in Fusion Plasmas and their Diagnostics with Spectral Line Stark Broadening
A. V. Demura, V. I. Kogan, A. B. Kukushkin, V. A. Rantsev-Kartinov
Abstract
We discuss the opportunities of diagnosing the parameters of hypothetical "wild cables" in fusion plasmas via analyzing the Stark broadening of hydrogen spectral lines. The "wild cables" concept have suggested the observed long-lived skeletal structures in tokamaks and Z-pinches to be caused by a microdust-assembled skeleton. We present the results of calculating the widths of vacuum channels produced by the pressure of on-skeleton high-frequency (HF) electromagnetic waves of the TEM type, which thus might protect the skeletons from ambient high-temperature plasma. The values of amplitude of such wave appear to be compatible with the measurements of those in-plasma HF electric fields in tokamak T-10 and a gaseous Z-pinch which give observable Stark broadening of hydrogen spectral lines.
Create a lesson
Related papers
Photoionization rates of oxygen and nitrogen at 800 nm measured by Thomson coherent microwave scattering
K. Reindersma, M. Malaussena, S. Anantaram et al.
Influence of Laguerre-Gaussian pulse mode purity on positron acceleration in nonlinear wakefields
Lars Reichwein
First ray-tracing simulations of mode conversion using metaplectic geometrical optics
Rui Kai Lee, Valerian H. Hall-Chen, I. Y. Dodin
Spontaneous Enhancement of Inward Impurity Pinch during Massive Impurity Injection in Tokamak Plasmas
L. Zeng, W. Xia, D. Hu et al.
Electron Kinetics in the Sheath of Atmospheric Pressure Plasmas in Helium and Helium:H2O Vapor
Uwe Kortshagen
Modeling runaway electron mitigation via passively driven plasma instabilities in a high-current tokamak
R Datta, C Clauser, G Hu et al.