Search Results - "Meitner, S J"

Experimental Pellet Shatter Thresholds and Analysis of Shatter Tube Ejecta for Disruption Mitigation Cryogenic Pellets by Gebhart, T. E., Baylor, L. R., Meitner, S. J.

“…Mitigating disruptions is essential for the longevity of future large tokamak experimental devices and reactors. Currently, shattered pellet injection (SPI)…”
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R&D Extruder Developments for the Wendelstein 7-X Continuous Pellet Fueling System by Meitner, S. J., Baylor, L. R., McGinnis, W. D.

“…Fabrication of the continuous pellet fueling system (CPFS) for long pulse operation of the Wendelstein 7-X (W7-X) stellarator is currently underway. Continuous…”
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Design and Testing of a Prototype Eddy Current Actuated Valve for the ITER Shattered Pellet Injection System by Gebhart, T. E., Ericson, M. N., Meitner, S. J., Baylor, L. R., Gardner, W. L., Bigelow, T. S., Rasmussen, D. A.

“…Reliably mitigating disruptions is essential for ITER to meet its long-term operational research plan without damage to the in-vessel components. Currently,…”
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Disruption-Mitigation-Technology Concepts and Implications for ITER by Baylor, L.R., Jernigan, T.C., Combs, S.K., Meitner, S.J., Caughman, J.B., Commaux, N., Rasmussen, D.A., Parks, P.B., Glugla, M., Maruyama, S., Pearce, R., Lehnen, M.

“…Disruptions on ITER present challenges to handle the intense heat flux, the large forces from halo currents, and the potential first wall damage from energetic…”
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Reduction of edge-localized mode intensity using high-repetition-rate pellet injection in tokamak H-mode plasmas by Baylor, L R, Commaux, N, Jernigan, T C, Brooks, N H, Combs, S K, Evans, T E, Fenstermacher, M E, Isler, R C, Lasnier, C J, Meitner, S J, Moyer, R A, Osborne, T H, Parks, P B, Snyder, P B, Strait, E J, Unterberg, E A, Loarte, A

“…High repetition rate injection of deuterium pellets from the low-field side (LFS) of the DIII-D tokamak is shown to trigger high-frequency edge-localized modes…”
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The Development of the Material Plasma Exposure Experiment by Rapp, Juergen, Biewer, T. M., Bigelow, T. S., Caughman, J. B. O., Duckworth, R. C., Ellis, R. J., Giuliano, D. R., Goulding, R. H., Hillis, D. L., Howard, R. H., Lessard, T. L., Lore, J. D., Lumsdaine, A., Martin, E. J., McGinnis, W. D., Meitner, S. J., Owen, L. W., Ray, H. B., Shaw, G. C., Varma, V. K.

“…The availability of future fusion devices, such as a fusion nuclear science facility or demonstration fusion power station, greatly depends on long operating…”
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Developing fuel sources for a steady-state multi-purpose pellet launching system by Lang, P.T., Baylor, L.R., Craciunescu, T., Gebhart, T.E., Meitner, S.J., Ploeckl, B.

“…Like for any power plant, refuelling will be one key issue in a future fusion reactor. It has to be safe and efficient; due to the operational principle, it…”
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Pellet Injection Technology and Its Applications on ITER by Baylor, L. R., Combs, S. K., Duckworth, R. C., Lyttle, M. S., Meitner, S. J., Rasmussen, D. A., Maruyama, S.

“…Cryogenic pellet injectors for use in fusion research have been under development at Oak Ridge National Laboratory for over 30 years. The original application…”
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Solidification and Acceleration of Large Cryogenic Pellets Relevant for Plasma Disruption Mitigation by Combs, S. K., Meitner, S. J., Gebhart, T. E., Baylor, L. R., Caughman, J. B. O., Fehling, D. T., Foust, C. R., Ha, T., Lyttle, M. S., Fisher, J. T., Younkin, T. R.

“…The technology for producing, accelerating, and shattering large pellets (before injection into plasmas) for disruption mitigation has been under development…”
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Overview of recent developments in pellet injection for ITER by Combs, Stephen Kirk, Baylor, L.R., Meitner, S.J., Caughman, J.B.O., Rasmussen, D.A., Maruyama, S.

“…► Status of the ITER pellet injection system. ► Fueling requirements for ITER. ► Summarizes the design/operating parameters and highlights recent developments…”
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Remote control of a high-speed pellet injector and data synchronization & sharing tools by Iannone, F., Frattolillo, A., Bombarda, F., D’Elia, G., Migliori, S., Podda, S., Poggi, F., Combs, S.K., Baylor, L.R., Gebhart, T.E., Meitner, S.J.

“…•Remote control of a pellet facility has been proved repeatable and reliable.•E3S platform has been successfully tested in remote control of a pellet…”
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Addressing the feasibility of inboard direct-line injection of high-speed pellets, for core fueling of DEMO by Frattolillo, A., Baylor, L.R., Bombarda, F., Cismondi, F., Colangeli, A., Combs, S.K., Day, Chr, D’Elia, G., Gebhart, T.E., Iannone, F., Lang, P.T., Meitner, S.J., Migliori, S., Moro, F., Mozzillo, R., Pégourié, B., Ploeckl, B., Podda, S., Poggi, F.

“…•Core fuelling of EU-DEMO tokamak requires pellet injection from the HFS at ≳1 km/s.•Two complementary approaches are being pursued to achieve this goal.•Guide…”
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ITER disruption mitigation technologies and beyond by Maruyama, S., Kiss, G., Villers, F., Yang, Y., Lehnen, M., Baylor, L. R., Lyttle, M. S., Meitner, S. J., Rasmussen, D. A.

“…ITER is designed to withstand a certain number of full scale plasma disruptions; each disruption event can induce excessive thermal loads, electromagnetic (EM)…”
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Selectable flight tube design developments for iter fueling, ELM pacing, and impurity pellets by Meitner, S. J., Baylor, L. R., Combs, S. K., Foust, C. R., Ha, T. T., Logan, K. G., Bjorholm, T. P., Lyttle, M. S., Migliori, S., Frattolillo, A.

“…ITER fueling and Edge Localized Mode (ELM) pacing pellets will be created by punching and chambering pellets with a solenoid operated cutter from an extrudate…”
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Pellet injection technology and applications on ITER by Baylor, L. R., Combs, S. K., Duckworth, R. C., Lyttle, M. S., Meitner, S. J., Rasmussen, D. A., Maruyama, S.

“…Cryogenic pellet injectors for use in fusion research have been under development at Oak Ridge National Laboratory for over 30 years. The original application…”
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Recent developments in support of the shattered pellet technique for disruption mitigation by Combs, S. K., Meitner, S. J., Gebhart, T. E., Baylor, L. R., Caughman, J. B. O., Fehling, D. T., Foust, C. R., Ha, T., Lyttle, M. S., Fisher, J. T., Younkin, T. R.

“…The technology for producing, accelerating, and shattering large pellets (before injection into plasmas) for disruption mitigation has been under development…”
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The Material Plasma Exposure eXperiment MPEX: Pre-design, development and testing of source concept by Rapp, J., Biewer, T. M., Bigelow, T., Caughman, J. B. O., Duckworth, R., Giuliano, D., Goulding, R. H., Hillis, D. L., Howard, R., Ellis, R. J., Lessard, T., Lore, J. D., Lumsdaine, A., Martin, E., McGinnis, W. D., Meitner, S. J., Owen, L. W., Ray, H., Shaw, G., Varma, V.

“…The availability of future fusion devices such as a Fusion Nuclear Science Facility (FNSF) or DEMO greatly depends on long operating lifetimes of plasma facing…”
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Fast acting eddy current driven valve for massive gas injection on ITER by Lyttle, M. S., Baylor, L. R., Carmichael, J. R., Combs, S. K., Ericson, M. N., Bull-Ezell, N. D., Fisher, P. W., Meitner, S. J., Nycz, A., Rasmussen, D. A., Shoulders, J. M., Smith, S. F., Warmack, R. J., Wilgen, J. B., Maruyama, S., Kiss, G.

“…Tokamak plasma disruptions present a significant challenge to ITER as they can result in intense heat flux, large forces from halo and eddy currents, and…”
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Modifications to the JET Shattered Pellet Injector to Optimize Disruption Mitigation Experiments for Supporting ITER's DMS Design by Gebhart, T. E., Meitner, S. J., Baylor, L. R., Herfindal, J. L., Jachmich, S., Lehnen, M., Kruezi, U., Wilson, J., Craven, D., Peacock, A.

“…Shattered pellet injection (SPI) experiments on Joint European Torus (JET) are an important element in determining the physics basis for mitigating disruptions…”
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ELM mitigation with pellet ELM triggering and implications for PFCs and plasma performance in ITER by Baylor, L.R., Lang, P.T., Allen, S.L., Combs, S.K., Commaux, N., Evans, T.E., Fenstermacher, M.E., Huijsmans, G., Jernigan, T.C., Lasnier, C.J., Leonard, A.W., Loarte, A., Maingi, R., Maruyama, S., Meitner, S.J., Moyer, R.A., Osborne, T.H.

“…The triggering of rapid small edge localized modes (ELMs) by high frequency pellet injection has been proposed as a method to prevent large naturally occurring…”
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