Abstract
Outgassing, induced by very long RF waves injection at high power density was studied in a module, able to be used for a lower hybrid frequency antenna. Good RF properties of the module are reported, however, resonance phenomena with strong absorption of RF power (15%) was observed at high temperature (T>400 deg C). A large outgassing data base is provided by the 75 shots cumulating 27 hours of RF injection. The comparison with previous experiments (Tore Supra and TdV prototype modules) confirm the effect of baking and results are consistent. Outgassing increases exponentially with -1/T, and a desorption model with an activation energy Ed {approx} 0.35 eV fits the data up to 400 deg C. In order to design vacuum pumping system for large lower hybrid frequency antenna, outgassing rates are given for different working temperatures. (author). 11 refs., 55 figs.
Goniche, M;
Brossaud, J;
Barral, C;
Berger-By, G;
Bibet, Ph;
Poli, S;
Rey, G;
Tonon, G;
[1]
Seki, M;
Obara, K
[2]
- Association Euratom-CEA, Centre d`Etudes Nucleaires de Cadarache, 13 - Saint-Paul-lez-Durance (France). Dept. de Recherches sur la Fusion Controlee
- Japan Atomic Energy Research Inst., Naka, Ibaraki (Japan). Naka Fusion Research Establishment; and others
Citation Formats
Goniche, M, Brossaud, J, Barral, C, Berger-By, G, Bibet, Ph, Poli, S, Rey, G, Tonon, G, Seki, M, and Obara, K.
Very long pulse high-RF power test of a lower hybrid frequency antenna module.
France: N. p.,
1994.
Web.
Goniche, M, Brossaud, J, Barral, C, Berger-By, G, Bibet, Ph, Poli, S, Rey, G, Tonon, G, Seki, M, & Obara, K.
Very long pulse high-RF power test of a lower hybrid frequency antenna module.
France.
Goniche, M, Brossaud, J, Barral, C, Berger-By, G, Bibet, Ph, Poli, S, Rey, G, Tonon, G, Seki, M, and Obara, K.
1994.
"Very long pulse high-RF power test of a lower hybrid frequency antenna module."
France.
@misc{etde_425007,
title = {Very long pulse high-RF power test of a lower hybrid frequency antenna module}
author = {Goniche, M, Brossaud, J, Barral, C, Berger-By, G, Bibet, Ph, Poli, S, Rey, G, Tonon, G, Seki, M, and Obara, K}
abstractNote = {Outgassing, induced by very long RF waves injection at high power density was studied in a module, able to be used for a lower hybrid frequency antenna. Good RF properties of the module are reported, however, resonance phenomena with strong absorption of RF power (15%) was observed at high temperature (T>400 deg C). A large outgassing data base is provided by the 75 shots cumulating 27 hours of RF injection. The comparison with previous experiments (Tore Supra and TdV prototype modules) confirm the effect of baking and results are consistent. Outgassing increases exponentially with -1/T, and a desorption model with an activation energy Ed {approx} 0.35 eV fits the data up to 400 deg C. In order to design vacuum pumping system for large lower hybrid frequency antenna, outgassing rates are given for different working temperatures. (author). 11 refs., 55 figs.}
place = {France}
year = {1994}
month = {Mar}
}
title = {Very long pulse high-RF power test of a lower hybrid frequency antenna module}
author = {Goniche, M, Brossaud, J, Barral, C, Berger-By, G, Bibet, Ph, Poli, S, Rey, G, Tonon, G, Seki, M, and Obara, K}
abstractNote = {Outgassing, induced by very long RF waves injection at high power density was studied in a module, able to be used for a lower hybrid frequency antenna. Good RF properties of the module are reported, however, resonance phenomena with strong absorption of RF power (15%) was observed at high temperature (T>400 deg C). A large outgassing data base is provided by the 75 shots cumulating 27 hours of RF injection. The comparison with previous experiments (Tore Supra and TdV prototype modules) confirm the effect of baking and results are consistent. Outgassing increases exponentially with -1/T, and a desorption model with an activation energy Ed {approx} 0.35 eV fits the data up to 400 deg C. In order to design vacuum pumping system for large lower hybrid frequency antenna, outgassing rates are given for different working temperatures. (author). 11 refs., 55 figs.}
place = {France}
year = {1994}
month = {Mar}
}