Perturbative transport experiments on TJ-II Flexible Heliac

Transport properties of TJ-II are explored performing perturbative experiments and taking advantage of TJ-II flexibility. Rotational transform can be varied in a wide range, which allows one to introduce low order rationals and to study their effect on transport. On the other hand, confinement prope...

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Опубліковано в: :	Вопросы атомной науки и техники
Дата:	2002
Автори:	Castejón, F., Ascasíbar, E., Alejaldre, C., Alonso, J., Almoguera, L., Baciero, A., Balbín, R., Blanco, E., Blaumoser, M., Botija, J., Brañas, B., Cappa, A., Carrasco, R., Cepero, J.R., Chmyga, A.A., Doncel, J., Dreval, N.B., Eguilior, S., Eliseev, L., Estrada, T., Fedyanin, O., Fernández, A., Fontdecaba, J.M., Fuentes, C., García, A., García-Cortés, I., Gonçalves, B., Guasp, J., Herranz, J., Hidalgo, A., Hidalgo, C., Jiménez, J.A., Kirpitchev, I., Khrebtov, S.M., Komarov, A.D., Kozachok, A.S., Krupnik, L., Lapayese, F., Likin, K., Liniers, M., López-Bruna, D., López-Fraguas, A., López-Rázola, J., López-Sánchez, A., de la Luna, E., Malaquias, A., Martín, R., Medrano, M., Melnikov, A.V., Méndez, P., McCarthy, K.J., Medina, F., van Milligen, B., Nedzelskiy, I.S., Ochando, M., Pacios, L., Pastor, I., Pavlov, S.S., Pedrosa, M.A., de la Peña, A., Petrov, A., Petrov, S., Portas, A., Romero, J., Rodríguez-Rodrigo, L., Salas, A., Sánchez, E., Sánchez, J., Sarksian, K., Schchepetov, S., Skvortsova, N., Tabarés, F., Tafalla, D., Tribaldos, V., Varandas, C.F.A., Vega, J., Zurro, B.
Формат:	Стаття
Мова:	English
Опубліковано:	Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2002
Теми:	Magnetic confinement
Онлайн доступ:	https://nasplib.isofts.kiev.ua/handle/123456789/80267
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Назва журналу:	Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:	Perturbative transport experiments on TJ-II Flexible Heliac / F. Castejón, E. Ascasíbar, C. Alejaldre, J. Alonso, L. Almoguera, A. Baciero, R. Balbín, E. Blanco, M. Blaumoser, J. Botija, B. Brañas, A. Cappa, R. Carrasco, J.R. Cepero, A.A. Chmyga, J. Doncel, N.B. Dreval, S. Eguilior, L. Eliseev, T. Estrada, O. Fedyanin, A. Fernández, J.M. Fontdecaba, C. Fuentes, A. García, I. García-Cortés, B. Gonçalves, J. Guasp, J. Herranz, A. Hidalgo, C. Hidalgo, J.A. Jiménez, I. Kirpitchev, S.M. Khrebtov, A.D. Komarov, A.S. Kozachok, L. Krupnik, F. Lapayese, K. Likin, M. Liniers, D. López-Bruna, A. López-Fraguas, J. López-Rázola, A. López-Sánchez, E. de la Luna, A. Malaquias, R. Martín, M. Medrano, A.V. Melnikov, P. Méndez, K.J. McCarthy, F. Medina, B. van Milligen, I.S. Nedzelskiy, M. Ochando, L. Pacios, I. Pastor, S.S. Pavlov, M.A. Pedrosa, A. de la Peña, A. Petrov, S. Petrov, A. Portas, J. Romero, L. Rodríguez-Rodrigo, A. Salas, E. Sánchez, J. Sánchez, K. Sarksian, S. Schchepetov, N. Skvortsova, F. Tabarés, D. Tafalla, V. Tribaldos, C.F.A. Varandas, J. Vega, B. Zurro // Вопросы атомной науки и техники. — 2002. — № 4. — С. 8-12. — Бібліогр.: 12 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine

id	nasplib_isofts_kiev_ua-123456789-80267
record_format	dspace
spelling	Castejón, F. Ascasíbar, E. Alejaldre, C. Alonso, J. Almoguera, L. Baciero, A. Balbín, R. Blanco, E. Blaumoser, M. Botija, J. Brañas, B. Cappa, A. Carrasco, R. Cepero, J.R. Chmyga, A.A. Doncel, J. Dreval, N.B. Eguilior, S. Eliseev, L. Estrada, T. Fedyanin, O. Fernández, A. Fontdecaba, J.M. Fuentes, C. García, A. García-Cortés, I. Gonçalves, B. Guasp, J. Herranz, J. Hidalgo, A. Hidalgo, C. Jiménez, J.A. Kirpitchev, I. Khrebtov, S.M. Komarov, A.D. Kozachok, A.S. Krupnik, L. Lapayese, F. Likin, K. Liniers, M. López-Bruna, D. López-Fraguas, A. López-Rázola, J. López-Sánchez, A. de la Luna, E. Malaquias, A. Martín, R. Medrano, M. Melnikov, A.V. Méndez, P. McCarthy, K.J. Medina, F. van Milligen, B. Nedzelskiy, I.S. Ochando, M. Pacios, L. Pastor, I. Pavlov, S.S. Pedrosa, M.A. de la Peña, A. Petrov, A. Petrov, S. Portas, A. Romero, J. Rodríguez-Rodrigo, L. Salas, A. Sánchez, E. Sánchez, J. Sarksian, K. Schchepetov, S. Skvortsova, N. Tabarés, F. Tafalla, D. Tribaldos, V. Varandas, C.F.A. Vega, J. Zurro, B. 2015-04-14T05:54:13Z 2015-04-14T05:54:13Z 2002 Perturbative transport experiments on TJ-II Flexible Heliac / F. Castejón, E. Ascasíbar, C. Alejaldre, J. Alonso, L. Almoguera, A. Baciero, R. Balbín, E. Blanco, M. Blaumoser, J. Botija, B. Brañas, A. Cappa, R. Carrasco, J.R. Cepero, A.A. Chmyga, J. Doncel, N.B. Dreval, S. Eguilior, L. Eliseev, T. Estrada, O. Fedyanin, A. Fernández, J.M. Fontdecaba, C. Fuentes, A. García, I. García-Cortés, B. Gonçalves, J. Guasp, J. Herranz, A. Hidalgo, C. Hidalgo, J.A. Jiménez, I. Kirpitchev, S.M. Khrebtov, A.D. Komarov, A.S. Kozachok, L. Krupnik, F. Lapayese, K. Likin, M. Liniers, D. López-Bruna, A. López-Fraguas, J. López-Rázola, A. López-Sánchez, E. de la Luna, A. Malaquias, R. Martín, M. Medrano, A.V. Melnikov, P. Méndez, K.J. McCarthy, F. Medina, B. van Milligen, I.S. Nedzelskiy, M. Ochando, L. Pacios, I. Pastor, S.S. Pavlov, M.A. Pedrosa, A. de la Peña, A. Petrov, S. Petrov, A. Portas, J. Romero, L. Rodríguez-Rodrigo, A. Salas, E. Sánchez, J. Sánchez, K. Sarksian, S. Schchepetov, N. Skvortsova, F. Tabarés, D. Tafalla, V. Tribaldos, C.F.A. Varandas, J. Vega, B. Zurro // Вопросы атомной науки и техники. — 2002. — № 4. — С. 8-12. — Бібліогр.: 12 назв. — англ. 1562-6016 PACS: 52.55.Hc; 52.25Fi https://nasplib.isofts.kiev.ua/handle/123456789/80267 Transport properties of TJ-II are explored performing perturbative experiments and taking advantage of TJ-II flexibility. Rotational transform can be varied in a wide range, which allows one to introduce low order rationals and to study their effect on transport. On the other hand, confinement properties can be studied at very different rotational transform values and for different values of magnetic shear: Experiments on influence of the magnetic shear on confinement are reported. In these cases a Ohmic current has been induced in TJ-II plasma to modify magnetic shear and to evaluate itsd effect on confinement, showing that negative shear improves the confinement. Heat transport is also reduced by locating a low order rational near the power deposition profile. Plasma potential profiles have been recently measured in some configurations up to the plasma core with the Heavy Ion Beam Probe (HIBP) diagnostic and the electric field values measured in low-density plasmas are consistent with neoclassical calculations near the plasma core. Plasma edge turbulent transport has been studied in configurations that are marginally stable due to decreased magnetic well. Results show a dynamical coupling between gradients and turbulent transport. Finally, cold pulse propagation has been studied showing ballistic non diffusive propagation. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Magnetic confinement Perturbative transport experiments on TJ-II Flexible Heliac Article published earlier
institution	Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection	DSpace DC
title	Perturbative transport experiments on TJ-II Flexible Heliac
spellingShingle	Perturbative transport experiments on TJ-II Flexible Heliac Castejón, F. Ascasíbar, E. Alejaldre, C. Alonso, J. Almoguera, L. Baciero, A. Balbín, R. Blanco, E. Blaumoser, M. Botija, J. Brañas, B. Cappa, A. Carrasco, R. Cepero, J.R. Chmyga, A.A. Doncel, J. Dreval, N.B. Eguilior, S. Eliseev, L. Estrada, T. Fedyanin, O. Fernández, A. Fontdecaba, J.M. Fuentes, C. García, A. García-Cortés, I. Gonçalves, B. Guasp, J. Herranz, J. Hidalgo, A. Hidalgo, C. Jiménez, J.A. Kirpitchev, I. Khrebtov, S.M. Komarov, A.D. Kozachok, A.S. Krupnik, L. Lapayese, F. Likin, K. Liniers, M. López-Bruna, D. López-Fraguas, A. López-Rázola, J. López-Sánchez, A. de la Luna, E. Malaquias, A. Martín, R. Medrano, M. Melnikov, A.V. Méndez, P. McCarthy, K.J. Medina, F. van Milligen, B. Nedzelskiy, I.S. Ochando, M. Pacios, L. Pastor, I. Pavlov, S.S. Pedrosa, M.A. de la Peña, A. Petrov, A. Petrov, S. Portas, A. Romero, J. Rodríguez-Rodrigo, L. Salas, A. Sánchez, E. Sánchez, J. Sarksian, K. Schchepetov, S. Skvortsova, N. Tabarés, F. Tafalla, D. Tribaldos, V. Varandas, C.F.A. Vega, J. Zurro, B. Magnetic confinement
title_short	Perturbative transport experiments on TJ-II Flexible Heliac
title_full	Perturbative transport experiments on TJ-II Flexible Heliac
title_fullStr	Perturbative transport experiments on TJ-II Flexible Heliac
title_full_unstemmed	Perturbative transport experiments on TJ-II Flexible Heliac
title_sort	perturbative transport experiments on tj-ii flexible heliac
author	Castejón, F. Ascasíbar, E. Alejaldre, C. Alonso, J. Almoguera, L. Baciero, A. Balbín, R. Blanco, E. Blaumoser, M. Botija, J. Brañas, B. Cappa, A. Carrasco, R. Cepero, J.R. Chmyga, A.A. Doncel, J. Dreval, N.B. Eguilior, S. Eliseev, L. Estrada, T. Fedyanin, O. Fernández, A. Fontdecaba, J.M. Fuentes, C. García, A. García-Cortés, I. Gonçalves, B. Guasp, J. Herranz, J. Hidalgo, A. Hidalgo, C. Jiménez, J.A. Kirpitchev, I. Khrebtov, S.M. Komarov, A.D. Kozachok, A.S. Krupnik, L. Lapayese, F. Likin, K. Liniers, M. López-Bruna, D. López-Fraguas, A. López-Rázola, J. López-Sánchez, A. de la Luna, E. Malaquias, A. Martín, R. Medrano, M. Melnikov, A.V. Méndez, P. McCarthy, K.J. Medina, F. van Milligen, B. Nedzelskiy, I.S. Ochando, M. Pacios, L. Pastor, I. Pavlov, S.S. Pedrosa, M.A. de la Peña, A. Petrov, A. Petrov, S. Portas, A. Romero, J. Rodríguez-Rodrigo, L. Salas, A. Sánchez, E. Sánchez, J. Sarksian, K. Schchepetov, S. Skvortsova, N. Tabarés, F. Tafalla, D. Tribaldos, V. Varandas, C.F.A. Vega, J. Zurro, B.
author_facet	Castejón, F. Ascasíbar, E. Alejaldre, C. Alonso, J. Almoguera, L. Baciero, A. Balbín, R. Blanco, E. Blaumoser, M. Botija, J. Brañas, B. Cappa, A. Carrasco, R. Cepero, J.R. Chmyga, A.A. Doncel, J. Dreval, N.B. Eguilior, S. Eliseev, L. Estrada, T. Fedyanin, O. Fernández, A. Fontdecaba, J.M. Fuentes, C. García, A. García-Cortés, I. Gonçalves, B. Guasp, J. Herranz, J. Hidalgo, A. Hidalgo, C. Jiménez, J.A. Kirpitchev, I. Khrebtov, S.M. Komarov, A.D. Kozachok, A.S. Krupnik, L. Lapayese, F. Likin, K. Liniers, M. López-Bruna, D. López-Fraguas, A. López-Rázola, J. López-Sánchez, A. de la Luna, E. Malaquias, A. Martín, R. Medrano, M. Melnikov, A.V. Méndez, P. McCarthy, K.J. Medina, F. van Milligen, B. Nedzelskiy, I.S. Ochando, M. Pacios, L. Pastor, I. Pavlov, S.S. Pedrosa, M.A. de la Peña, A. Petrov, A. Petrov, S. Portas, A. Romero, J. Rodríguez-Rodrigo, L. Salas, A. Sánchez, E. Sánchez, J. Sarksian, K. Schchepetov, S. Skvortsova, N. Tabarés, F. Tafalla, D. Tribaldos, V. Varandas, C.F.A. Vega, J. Zurro, B.
topic	Magnetic confinement
topic_facet	Magnetic confinement
publishDate	2002
language	English
container_title	Вопросы атомной науки и техники
publisher	Національний науковий центр «Харківський фізико-технічний інститут» НАН України
format	Article
description	Transport properties of TJ-II are explored performing perturbative experiments and taking advantage of TJ-II flexibility. Rotational transform can be varied in a wide range, which allows one to introduce low order rationals and to study their effect on transport. On the other hand, confinement properties can be studied at very different rotational transform values and for different values of magnetic shear: Experiments on influence of the magnetic shear on confinement are reported. In these cases a Ohmic current has been induced in TJ-II plasma to modify magnetic shear and to evaluate itsd effect on confinement, showing that negative shear improves the confinement. Heat transport is also reduced by locating a low order rational near the power deposition profile. Plasma potential profiles have been recently measured in some configurations up to the plasma core with the Heavy Ion Beam Probe (HIBP) diagnostic and the electric field values measured in low-density plasmas are consistent with neoclassical calculations near the plasma core. Plasma edge turbulent transport has been studied in configurations that are marginally stable due to decreased magnetic well. Results show a dynamical coupling between gradients and turbulent transport. Finally, cold pulse propagation has been studied showing ballistic non diffusive propagation.
issn	1562-6016
url	https://nasplib.isofts.kiev.ua/handle/123456789/80267
citation_txt	Perturbative transport experiments on TJ-II Flexible Heliac / F. Castejón, E. Ascasíbar, C. Alejaldre, J. Alonso, L. Almoguera, A. Baciero, R. Balbín, E. Blanco, M. Blaumoser, J. Botija, B. Brañas, A. Cappa, R. Carrasco, J.R. Cepero, A.A. Chmyga, J. Doncel, N.B. Dreval, S. Eguilior, L. Eliseev, T. Estrada, O. Fedyanin, A. Fernández, J.M. Fontdecaba, C. Fuentes, A. García, I. García-Cortés, B. Gonçalves, J. Guasp, J. Herranz, A. Hidalgo, C. Hidalgo, J.A. Jiménez, I. Kirpitchev, S.M. Khrebtov, A.D. Komarov, A.S. Kozachok, L. Krupnik, F. Lapayese, K. Likin, M. Liniers, D. López-Bruna, A. López-Fraguas, J. López-Rázola, A. López-Sánchez, E. de la Luna, A. Malaquias, R. Martín, M. Medrano, A.V. Melnikov, P. Méndez, K.J. McCarthy, F. Medina, B. van Milligen, I.S. Nedzelskiy, M. Ochando, L. Pacios, I. Pastor, S.S. Pavlov, M.A. Pedrosa, A. de la Peña, A. Petrov, S. Petrov, A. Portas, J. Romero, L. Rodríguez-Rodrigo, A. Salas, E. Sánchez, J. Sánchez, K. Sarksian, S. Schchepetov, N. Skvortsova, F. Tabarés, D. Tafalla, V. Tribaldos, C.F.A. Varandas, J. Vega, B. Zurro // Вопросы атомной науки и техники. — 2002. — № 4. — С. 8-12. — Бібліогр.: 12 назв. — англ.
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Perturbative transport experiments on TJ-II Flexible Heliac

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