Validation of collisional radiative modelling of emission line ratios for helium beam plasma diagnostic

Date

2009

Authors

Collis, S
Dall, Robert
Howard, John
Andruczyk, D
James, Brian W

Journal Title

Journal ISSN

Volume Title

Publisher

Pergamon-Elsevier Ltd

Abstract

A time-dependent collisional radiation model has been used to validate the use of a pulsed helium beam to measure electron temperature profiles in the H-1NF flexible heliac. The diagnostics technique is based on the measurement of helium spectral line ratios which are a strong function of electron temperature while being a weak function of electron density. The validation procedure involves comparing measured and calculated emissivities of spectral lines emitted by helium atoms as a function of position in the beam.

Description

Keywords

Keywords: Electromagnetic wave emission; Helium; Plasma diagnostics; Plasma probes; Radioactivity; Spectrum analysis; Collisional radiative model; Diagnostics techniques; Electron densities; Emission lines; Helium atoms; Radiation models; Spectral lines; Time depen Collisional radiative model; Electron temperature; Helium beam; Plasma diagnostic

Citation

Source

Journal of Quantitative Spectroscopy & Radiative Transfer

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

Restricted until

2037-12-31