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Measurements of electron density and temperature in the H-1 heliac plasma by helium line intensity ratios

Ma, Shuiliang; Howard, John; Blackwell, Boyd D.; Thapar, Nandika


Electron density and temperature distributions in the H-1 heliac plasma are measured using the helium line intensity ratio technique based on a collisional-radiative model. An inversion approach with minimum Fisher regularization is developed to reconstruct the ratios of the local emission radiances from detected line-integrated intensities. The electron density and temperature inferred from the He I 667.8/728.1 and He I 728.1/706.5 nm line ratios are in good agreement with those from other...[Show more]

CollectionsANU Research Publications
Date published: 2012-03-07
Type: Journal article
Source: Review of Scientific Instruments
DOI: 10.1063/1.3692756


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