Results 1 to 10 of about 140,360 (284)

Divertor Detachment with Multi-Species Impurity Seeding in LHD [PDF]

Plasma and Fusion Research, 2020
0000-0003-1586-1084Divertor detachment using higher-Z (Kr) and/or lower-Z (Ne) is investigated. Using Kr+Ne superimposed seeding, plasma radiation could be enhanced at the upstream region in the edge plasma with suppression of impurity accumulation ...
Yuki Hayashi, Chihiro Suzuki, Masahiro Kobayashi   +2 more
exaly   +5 more sources

Impurity radiation seeding of neoclassical tearing mode growth

Nuclear Fusion
The physics of neoclassical tearing modes (NTMs) is of great concern to tokamak plasma stability and performance, especially in the burning plasma regime.
Shiyong Zeng, Ping Zhu, Eric C. Howell
doaj   +4 more sources

Mechanism of enhanced ion temperature by impurity seeding in EAST H-mode plasma

Nuclear Fusion, 2023
Ion temperature ( T _i ) profiles are commonly observed to increase in peaking, leading to higher central T _i , after impurity seeding in the EAST H-mode plasma. Argon can be more efficient at raising T _i than neon.
Xiuda Yang, Xianzu Gong, Jinping Qian, Yifei Jin, Pierre Manas, Pan Li, Clarisse Bourdelle, Yuqi Chu, Bin Zhang, Yingjie Chen, Yunchan Hu, Yingying Li, Kedong Li, Xuexi Zhang, Yanmin Duan, Hongming Zhang, Tianqi Jia, Haiqing Liu, Qing Zang, Juan Huang, Rui Ding, Liang Wang, Guosheng Xu   +22 more
doaj   +2 more sources

Impurity-seeded plasma experiments on JET [PDF]

Nuclear Fusion, 2002
Scaling to larger tokamaks of high confinement plasmas with radiating edges, induced by impurities, is being studied through internationally collaborative experiments on JET. In campaigns till the end of 2000, three different regimes have been explored. A small number of limiter L-mode discharges seeded with neon have most closely repeated the approach
G.P Maddison, M Brix, R Budny, M Charlet, I Coffey, J.G Cordey, P Dumortier, S.K Erents, N.C Hawkes, M. von Hellermann, D.L Hillis, J Hogan, L.D Horton, L.C Ingesson, S Jachmich, G.L Jackson, A Kallenbach, H.R Koslowski, K.D Lawson, A Loarte, G.F Matthews, D McDonald, G.R McKee, A Meigs, A.M Messiaen, F Milani, P Monier-Garbet, M Murakami, M.F.F Nave, J Ongena, M.E Puiatti, E Rachlew, J Rapp, S Sharapov, G.M Staebler, M Stamp, J.D Strachan, W Suttrop, G Telesca, M.Z Tokar, B Unterberg, M Valisa, K.-D Zastrow, EFDA-JET 2000 workprogramme contributors   +43 more
openaire   +5 more sources

Long-pulse H-mode operation with stored-energy monitoring for detachment feedback control with a new lower tungsten divertor in EAST

Nuclear Fusion, 2023
One of the key challenges for future fusion research is to mitigate the high steady-state heat load on the divertor target plates, and divertor detachment offers a promising solution. The Experimental Advanced Superconducting Tokamak (EAST) has developed
Y.Q. Tao, G.S. Xu, K. Wu, Q.Q. Yang, L. Wang, Q.P. Yuan, Y.F. Wang, X. Lin, L.Y. Meng, G.F. Ding, L. Yu, R. Chen, J.B. Liu, N. Yan, H. Lan, P.J. Sun, K.D. Li, J.C. Xu, Y.M. Duan, Q. Zang, Y.F. Jin, L. Zhang, S.X. Wang, K.N. Geng, R.R. Liang   +24 more
doaj   +1 more source

The influence of impurities in natural seeds of alfalfa and red clover on the seed cleaning process [PDF]

Journal on Processing and Energy in Agriculture, 2021
The paper presents the results of the cleaning process of five different lots of natural alfalfa seeds and five different lots of natural red clover seeds. Natural alfalfa and red clover seeds had 75 % to 77 % purity. The experiment was performed in the seed processing center of the Institute for Forage Crops Kruševac.
Dragoslav Đokić, Dragan Terzić, Vera Rajičić, Sanja Živković, Violeta Oro, Jasmina Milenković, Ranko Koprivica   +6 more
openaire   +3 more sources

Divertor Impurity Seeding Experiments at the COMPASS Tokamak [PDF]

Nuclear Fusion, 2019
Partial detachment is the desired regime for the baseline burning plasma scenario in ITER and other next-step devices, as it allows for the dissipation of the majority of the energy carried by charged particles through the scrape-off-layer and thus avoids localised heat flux deposition in the divertor region.
Komm, M., Khodunov, I., Cavalier, J., Horacek, J., Seidl, J., Naydenkova, D., Adamek, J., Bilkova, P., Bohm, P., Devitre, A., Dimitrova, M., Elmore, S., Faitsch, M., Hacek, P., Havlicek, J., Havranek, A., Imrisek, M., Krbec, J., Peterka, M., Panek, R., Popov, T., Samoylov, O., Tomes, M., Tomova, K., Vondracek, P., Weinzettl, V.   +25 more
openaire   +5 more sources

Improved ELM scaling with impurity seeding in JET [PDF]

Plasma Physics and Controlled Fusion, 2003
Argon-seeded H-modes in low triangularity pumped-limiter-like, and medium to high triangularity divertor, configurations on JET are described, focusing upon ELM effects. Appropriate fuelling and seeding strategies in each geometry have combined good confinement with density around the Greenwald level, accompanied by ELMs shown to have explicitly Type I
Maddison, G., Budny, R., Dumortier, P., Jachmich, S., Loarte, A., Messiaen, A., Monier-Garbet, P., Nave, M., Ongena, J., Rapp, J., Strachan, J., JET EFDA Contributors, et al.   +12 more
openaire   +4 more sources

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

Impurity control study of radiative tungsten divertor in EAST tokamak

Nuclear Materials and Energy, 2020
EAST was equipped with W-coated divertor plates and dome for the upper divertor, the remaining plasma facing components include the plasma facing components at lower divertor consisted of Carbon materials, at the baffles and main chamber walls consisted ...
YiPing Chen, Dongrui Zhang, Ling Zhang, Liqun Hu, EAST team   +4 more
doaj   +1 more source