Abstract
Laser-induced Lyman-{alpha} fluorescence of the hydrogen isotopes is investigated with regard to diagnostic applications in magnetically confined fusion plasmas. A formal analysis is presented for two excitation schemes: one-photon and Doppler-free two-photon excitation. The analysis includes estimates of the expected experimental errors arising from the photon noise and from the sensitivity of the observed fluorescence signals to variations of the plasma and laser parameters. Both excitation schemes are suitable primarily for application in the plasma edge, but even in the plasma bulk of large machines they can still be applied in combination with a diagnostic neutral beam. The two-photon excitation scheme is particularly attractive because it involves absorption spectra that are resolved within the Doppler width. This implies a large diagnostic potential and in particular offers a way to measure the deuterium-tritium fuel mix in fusion reactors. (author) 37 refs.
Citation Formats
Voslamber, D.
Diagnostics of MCF plasmas using Lyman-{alpha} fluorescence excited by one or two photons.
France: N. p.,
1998.
Web.
Voslamber, D.
Diagnostics of MCF plasmas using Lyman-{alpha} fluorescence excited by one or two photons.
France.
Voslamber, D.
1998.
"Diagnostics of MCF plasmas using Lyman-{alpha} fluorescence excited by one or two photons."
France.
@misc{etde_10147116,
title = {Diagnostics of MCF plasmas using Lyman-{alpha} fluorescence excited by one or two photons}
author = {Voslamber, D}
abstractNote = {Laser-induced Lyman-{alpha} fluorescence of the hydrogen isotopes is investigated with regard to diagnostic applications in magnetically confined fusion plasmas. A formal analysis is presented for two excitation schemes: one-photon and Doppler-free two-photon excitation. The analysis includes estimates of the expected experimental errors arising from the photon noise and from the sensitivity of the observed fluorescence signals to variations of the plasma and laser parameters. Both excitation schemes are suitable primarily for application in the plasma edge, but even in the plasma bulk of large machines they can still be applied in combination with a diagnostic neutral beam. The two-photon excitation scheme is particularly attractive because it involves absorption spectra that are resolved within the Doppler width. This implies a large diagnostic potential and in particular offers a way to measure the deuterium-tritium fuel mix in fusion reactors. (author) 37 refs.}
place = {France}
year = {1998}
month = {Nov}
}
title = {Diagnostics of MCF plasmas using Lyman-{alpha} fluorescence excited by one or two photons}
author = {Voslamber, D}
abstractNote = {Laser-induced Lyman-{alpha} fluorescence of the hydrogen isotopes is investigated with regard to diagnostic applications in magnetically confined fusion plasmas. A formal analysis is presented for two excitation schemes: one-photon and Doppler-free two-photon excitation. The analysis includes estimates of the expected experimental errors arising from the photon noise and from the sensitivity of the observed fluorescence signals to variations of the plasma and laser parameters. Both excitation schemes are suitable primarily for application in the plasma edge, but even in the plasma bulk of large machines they can still be applied in combination with a diagnostic neutral beam. The two-photon excitation scheme is particularly attractive because it involves absorption spectra that are resolved within the Doppler width. This implies a large diagnostic potential and in particular offers a way to measure the deuterium-tritium fuel mix in fusion reactors. (author) 37 refs.}
place = {France}
year = {1998}
month = {Nov}
}