Search Results - "Varje, J."

Interplay between beam-driven chirping modes and plasma confinement transitions in spherical tokamak ST40 by Bland, J., Varje, J., Gorelenkov, N.N., Gryaznevich, M.P., Sharapov, S.E., Wood, J., The ST40, Team

“…Abstract Experiments on the high field spherical tokamak ST40 have led to the recent observation of interplay between beam-driven modes of sweeping frequency…”
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Achievement of ion temperatures in excess of 100 million degrees Kelvin in the compact high-field spherical tokamak ST40 by McNamara, S.A.M., Asunta, O., Bland, J., Buxton, P.F., Colgan, C., Dnestrovskii, A., Gemmell, M., Gryaznevich, M., Hoffman, D., Janky, F., Lister, J.B., Lowe, H.F., Mirfayzi, R.S., Naylor, G., Nemytov, V., Njau, J., Pyragius, T., Rengle, A., Romanelli, M., Romero, C., Sertoli, M., Shevchenko, V., Sinha, J., Sladkomedova, A., Sridhar, S., Takase, Y., Thomas, P., Varje, J., Vincent, B., Willett, H.V., Wood, J., Zakhar, D., Battaglia, D.J., Kaye, S.M., Delgado-Aparicio, L.F., Maingi, R., Mueller, D., Podesta, M., Delabie, E., Lomanowski, B., Marchuk, O.

“…Abstract Ion temperatures of over 100 million degrees Kelvin (8.6 keV) have been produced in the ST40 compact high-field spherical tokamak (ST). Ion…”
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Sensitivity of fast ion losses to magnetic perturbations in the European DEMO by Varje, J., Kurki-Suonio, T., Snicker, A., Särkimäki, K., Vincenzi, P., Agostinetti, P., Fable, E., Sonato, P., Villone, F.

“…The limits for the heat loads on the DEMO first wall are significantly stricter compared to those of ITER due to cooling and breeding blanket requirements…”
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Estimate of 3D power wall loads due to Neutral Beam Injection in EU DEMO ramp-up phase by Vincenzi, P., Varje, J., Agostinetti, P., Artaud, J.F., Bolzonella, T., Kurki-Suonio, T., Mattei, M., Sonato, P., Vallar, M.

“…•NBI usability in DEMO1 ramp-up phase may be barely possible at low plasma density.•NBI shine-through losses can exceed the tolerable first wall heat flux…”
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Forward modelling of Dα camera view in ST40 informed by experimental data by Aimetta, A., Moscheni, M., Singh, L., Marsden, C., Scarabosio, A., Sertoli, M., Sladkomedova, A., Subba, F., Varje, J., Wu, H.

“…Embedding diagnostics in future pilot plants will be a challenging task, because of space- and irradiation-related concerns. Relying on high-fidelity synthetic…”
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Moment-preserving and mesh-adaptive reweighting method for rare-event sampling in Monte-Carlo algorithms by Schuster, C.U., Johnson, T., Papp, G., Bilato, R., Sipilä, S., Varje, J., Hasenöhrl, M.

“…We present novel roulette schemes for rare-event sampling that are both structure-preserving and unbiased. The boundaries where Monte Carlo markers are split…”
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Overview of recent results from the ST40 compact high-field spherical tokamak by McNamara, S. A.M., Alieva, A., Anastopoulos Tzanis, M. S., Asunta, O., Bland, J., Bohlin, H., Buxton, P. F., Colgan, C., Dnestrovskii, A., du Toit, E., Fontana, M., Gemmell, M., Gryaznevich, M. P., Hakosalo, J., Hardman, M. R., Harryman, D., Hoffman, D., Iliasova, M., Janhunen, S., Janky, F., Lister, J. B., Lowe, H. F., Maartensson, E., Marsden, C., Medvedev, S. Y., Mirfayzi, S. R., Moscheni, M., Naylor, G., Nemytov, V., Njau, J., O’Gorman, T., Osin, D., Pyragius, T., Rengle, A., Romanelli, M., Romero, C., Sertoli, M., Shevchenko, V., Sinha, J., Sladkomedova, A., Sridhar, S., Stirling, J., Takase, Y., Thomas, P. R., Varje, J., Vekshina, E., Vincent, B., Willett, H. V., Wood, J., Wooldridge, E., Zakhar, D., Zhang, X., Battaglia, D., Bertelli, N., Bonofiglo, P. J., Delgado-Aparicio, L. F., Duarte, V. N., Gorelenkov, N. N., de Haas, M., Kaye, S. M., Maingi, R., Mueller, D., Ono, M., Podesta, M., Ren, Y., Trieu, S., Delabie, E., Gray, T. K., Lomanowski, B., Unterberg, E. A., Marchuk, O.

“…Abstract ST40 is a compact, high-field (B T0 ≤ 2.1T) spherical tokamak (ST) with a mission to expand the physics and technology basis for the ST route to…”
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Achievement of ion temperatures in excess of 100 million degrees Kelvin in the compact high-field spherical tokamak ST40 by McNamara, S. A. M., Asunta, O., Bland, J., Buxton, P. F., Colgan, C., Dnestrovskii, A., Gemmell, M., Gryaznevich, M., Hoffman, D., Janky, F., Lister, J. B., Lowe, H. F., Mirfayzi, R. S., Naylor, G., Nemytov, V., Njau, J., Pyragius, T., Rengle, A., Romanelli, M., Romero, C., Sertoli, M., Shevchenko, V., Sinha, J., Sladkomedova, A., Sridhar, S., Takase, Y., Thomas, P., Varje, J., Vincent, B., Willett, H. V., Wood, J., Zakhar, D., Battaglia, D. J., Kaye, S. M., Delgado-Aparicio, L. F., Maingi, R., Mueller, D., Podesta, M., Delabie, E., Lomanowski, B., Marchuk, O., the ST40 Team

“…Ion temperatures of over 100 million degrees Kelvin (8.6 keV) have been produced in the ST40 compact high-field spherical tokamak (ST). Ion temperatures in…”
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Isotope removal experiment in JET-ILW in view of T-removal after the 2nd DT campaign at JET by Wauters, T, Matveev, D, Douai, D, Banks, J, Buckingham, R, Carvalho, I S, de la Cal, E, Delabie, E, Dittmar, T, Gaspar, J, Huber, A, Jepu, I, Karhunen, J, Knipe, S, Maslov, M, Meigs, A, Monakhov, I, Neverov, V S, Noble, C, Papadopoulos, G, Pawelec, E, Romanelli, S, Shaw, A, Sheikh, H, Silburn, S, Widdowson, A, Abreu, P, Aleiferis, S, Bernardo, J, Borodin, D, Brezinsek, S, Buermans, J, Card, P, Carvalho, P, Crombe, K, Dalley, S, Dittrich, L, Elsmore, C, Groth, M, Hacquin, S, Henriques, R, Huber, V, Jacquet, P, Jiang, X, Jones, G, Keeling, D, Kinna, D, Kirov, K, Kovari, M, Kowalska-Strzeciwilk, E, Kukushkin, A B, Kumpulainen, H, Litherland-Smith, E, Lomas, P, Loarer, T, Lowry, C, Manzanares, A, Patel, A, Peacock, A, Petersson, P, Petrella, N, Pitts, R A, Romazanov, J, Rubel, M, Siren, P, Smart, T, Solano, E R, Štancar, Ž, Varje, J, Whitehead, A, Wiesen, S, Zerbini, M, Zlobinski, M

“…Abstract A sequence of fuel recovery methods was tested in JET, equipped with the ITER-like beryllium main chamber wall and tungsten divertor, to reduce the…”
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Moment-Preserving and Mesh-Adaptive Reweighting Method for Rare-Event Sampling in Monte-Carlo Algorithms by Schuster, C. U, Johnson, T, Papp, G, Bilato, R, Sipilä, S, Varje, J, Hasenöhrl, M

“…We present novel roulette schemes for rare-event sampling that are both structure-preserving and unbiased. The boundaries where Monte Carlo markers are split…”
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