Results 11 to 20 of about 1,348 (158)

Plasma surface interactions in impurity seeded plasmas [PDF]

Journal of Nuclear Materials, 2011
Abstract With tokamak devices developing towards higher heating powers, and carbon plasma facing components being increasingly replaced by high-Z materials like tungsten, impurity seeding for radiative power dissipation gains more importance. This review summarizes the core and divertor radiative characteristics of potential seeding species, namely ...
Kallenbach, A., Balden, M., Dux, R., Eich, T., Giroud, C., Huber, A., Maddison, G. P., Mayer, M., Mccormick, K., Neu, R., Petrie, T. W., Pütterich J. Rapp, T. Pütterich J. Rapp, Reinke, M. L., Schmid, K., Schweinzer, J., Wolfe, S., The, ASDEX Upgrade Team, DIII D, Team, Alcator, Team, Abel, I., Afanesyev, V., Agarici, G., Aggarwal, K. M., Airila, M., Akers, R., Alarcon, T.h., Albanese, R., Alexeev, A., Alfier, A., Allan, P., Almaviva, S., Alonso, A., Alonso, M., Alper, B., Altmann, H., Alves, D., Ambrosino, G., Amosov, V., Anda, G., Andersson, F., Andersson Sund ́en, E., Andreev, V., Andrew, Y., Angelone, M., Anghel, M., Anghel, A., Angioni, C., Apruzzese, G., Arcis, N., Arena, P., Argouarch, A., Ariola, M., Armitano, A., Armstrong, R., Arnoux, G., Arshad, S., Artaserse, G., Artaud, J. F., Ash, A., Asp, E., Asunta, O., Atanasiu, C. V., Atkins, G., Axton, M. D., Ayres, C., Baciero, A., Bailescu, V., Baiocchi, B., Baker, R. A., Balboa, I., Balorin, C., Balshaw, N., Banks, J. W., Baranov, Y. F., Barbier, D., Barlow, I. L., Barnard, M. A., Barnsley, R., Barrena, L., Barrera, L., Baruzzo, M., Basiuk, V., Bateman, G., Batistoni, P., Baumgarten, N., Baylor, L., Bazylev, B., Beaumont, P. S., Beausang, K., B ́ecoulet, M., Bekris, N., Beldishevski, M., Bell, A. C., Belli, F., Bellinger, M., Bellizio, T., Belo, P. S. A., Belonohy, ́ E., Bennett, P. E., Benterman, N. A., Berger By, G., Bergsåker, H., Berk, H., Bernardo, J., Bertrand, B., Beurskens, M. N. A., Bieg, B., Bienkowska, B., Biewer, T., Biewer, T. M., Bigi, M., Bilato, R., Bird, J., Bizarro, J., Blackman, T. R., Blanchard, P., Blanco, E., Blum, J., Bobkov, V., Boboc, A., Boilson, D., Bolshakova, I., Bolzonella, T., Boncagni, L., Bonheure, G., Bonnin, X., Borba, D., Borthwick, A., Botrugno, A., Boulbe, C., Bouquey, F., Bourdelle, C., Bovert, K. V., Bowden, M., Boyce, T., Boyer, H. J., Bozhenkov, A., Brade, R. J., Bradshaw, J. M. A., Braet, J., Braic, V., Braithwaite, G. C., Brault, C., Braune, H., Breizman, B., Bremond, S., Brennan, P. D., Brett, A., Breue, J., Brezinsek, S., Bright, M. D. J., Briscoe, F., Brix, M., Brombin, M., Brown, B. C., Brown, D. P. D., Bruschi, A., Brzozowski, J., Bucalossi, J., Buckley, M. A., Budd, T., Budny, R., Budny, R. V., Bunting, P., Buratti, P., Burcea, G., Butcher, P. R., Buttery, R. J., Cac ̧ ̃ao, R., Calabr`o, G., Callaghan, C. P., Caminade, J. P., Camp, P. G., Campling, D. C., Canik, J., Cannas, B., Capel, A. J., Carannante, G., Card, P. J., Cardinali, A., Carlstrom, T., Carman, P., Carralero, D., Carraro, L., Carter, T., Carvalho, B. B., Carvalho, P., Casati, A., Castaldo, C., Caughman, J., Cavazzana, R., Cavinato, M., Cecconello, M., Cecil, F. E., Cenedese, A., Centioli, C., Cesario, R., Challis, C. D., Chandler, M., Chang, C.   +199 more
openaire   +4 more sources

Effects of low-Z and high-Z impurities on divertor detachment and plasma confinement

Nuclear Materials and Energy, 2017
The impurity-seeded detached divertor is essential for heat exhaust in ITER and other reactor-relevant devices. Dedicated experiments with injection of N2, Ne and Ar have been performed in DIII-D to assess the impact of the different impurities on ...
H.Q. Wang, H.Y. Guo, T.W. Petrie, A.W. Leonard, D.M. Thomas, J.G. Watkins   +5 more
doaj   +1 more source

Impact of Kr and Ar seeding on D retention in ferritic-martensitic steels after high-fluence plasma exposure

Nuclear Materials and Energy, 2018
Total deuterium (D) retention from the bulk material of reduced-activation ferritic-martensitic (RAFM) steel Eurofer’97 (EU’97) and commercial ferritic-martensitic grade P92 was traced experimentally by means of thermal desorption spectroscopy (TDS) and ...
Y. Martynova, M. Freisinger, A. Kreter, B. Göths, S. Möller, A. Terra, D. Matveev, M. Rasiński, B. Unterberg, S. Brezinsek, Ch. Linsmeier   +10 more
doaj   +1 more source

Impurity seeding and scaling of edge parameters in ITER [PDF]

Journal of Nuclear Materials, 2009
Abstract ITER divertor and edge modelling with the ITER B2–EIRENE code including neutral–neutral and molecule–ion collisions has led to updated scaling of the helium density and flux and the DT flux with the pumping speed and the divertor neutral pressure.
Pacher, H. D., Kukushkin, A. S., Pacher, G. W., Kotov, V., Janeschitz, G., Reiter, D., Coster, D. P., ASDEX Upgrade Team   +7 more
openaire   +4 more sources

Effects of the gas puffing neutral on the plasma parameters in the end-cell of GAMMA 10/PDX by using the multi-fluid code “LINDA”

Nuclear Materials and Energy, 2019
This research numerically investigates the behavior of plasma flow in GAMMA 10/PDX. The impact of impurity gases seeding into the divertor region on the plasma parameters and the energy loss processes has been investigated numerically by using the multi ...
M.S. Islam, Y. Nakashima, S. Takechi, R. Tatsumi, A. Hatayama, T. Iijima, S. Yamashita, T. Yoshimoto, T. Hara, N. Ezumi, M. Sakamoto   +10 more
doaj   +1 more source

Development of DTT single null divertor scenario

Nuclear Materials and Energy, 2021
This paper focuses on scrape-off layer and divertor modelling of the medium-density single-null scenario of the Divertor Test Tokamak facility (DTT), under construction in Italy.
L. Balbinot, G. Rubino, P. Innocente
doaj   +1 more source

Model-based impurity emission front control using deuterium fueling and nitrogen seeding in TCV

Nuclear Fusion, 2022
This paper presents the first result using nitrogen-seeded exhaust feedback control of the NII impurity emission front in TCV. The NII emission front position is consistently located below its commonly used CIII counterpart, indicating the NII emission ...
J.T.W. Koenders, A. Perek, B. Kool, O. Février, T. Ravensbergen, C. Galperti, B.P. Duval, C. Theiler, M. van Berkel, The TCV Team, The EUROfusion MST1 Team   +10 more
doaj   +1 more source

3D modeling of boron transport in DIII-D L-mode wall conditioning experiments

Nuclear Materials and Energy, 2021
DIII-D L-mode experiments with local boron powder injection for real-time wall conditioning have been interpreted for the first time with the 3D plasma edge transport Monte Carlo code EMC3-EIRENE.
F. Effenberg, A. Bortolon, H. Frerichs, B. Grierson, J.D. Lore, T. Abrams, T.E. Evans, Y. Feng, R. Lunsford, R. Maingi, A. Nagy, R. Nazikian, D. Orlov, J. Ren, D.L. Rudakov, W.R. Wampler, H.Q. Wang   +16 more
doaj   +1 more source

Impacts of recycling impurity on the background ELM behavior during repetitive radiative divertor experiments in EAST

Nuclear Fusion, 2023
A significant change in the background ELM behavior prior to neon (Ne) seeding has been observed in a series of repetitive radiative divertor experiments in EAST.
Q.Q. Yang, X. Lin, G.S. Xu, L. Zhang, W.M. Zhang, Y. Ye, K.D. Li, D.G. Wu, Q. Zang, Y.J. Chen, X.M. Zhong, Y.F. Wang, L.Y. Meng, Y.M. Wang, Y.Y. Li, Y.M. Duan   +15 more
doaj   +1 more source

The radiated power limit in impurity seeded JET-ILW plasmas

Nuclear Materials and Energy, 2022
The total radiated fraction is examined in high density H-mode plasmas (Greenwald fraction of about 85 %) in JET by the variation of the auxiliary heating power of Pheat = 14 MW-29 MW.
A. Huber, M. Wischmeier, S. Wiesen, M. Bernert, A.V. Chankin, S. Aleiferis, S. Brezinsek, V. Huber, G. Sergienko, C. Giroud, M. Groth, S. Jachmich, Ch. Linsmeier, B. Lomanowski, C. Lowry, G.F. Matthews, A.G. Meigs, Ph. Mertens, S. Silburn, G. Telesca   +19 more
doaj   +1 more source