Search Results - "Combs, S K"

Comparison of cryogenic (hydrogen) and TESPEL (polystyrene) pellet particle deposition in a magnetically confined plasma by McCarthy, K. J., Tamura, N., Combs, S. K., Panadero, N., Ascabíbar, E., Estrada, T., García, R., Hernández Sánchez, J., López Fraguas, A., Navarro, M., Pastor, I., Soleto, A.

“…A cryogenic pellet injector (PI) and tracer encapsulated solid pellet (TESPEL) injector system has been operated in combination on the stellarator TJ-II. This…”
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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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Evaluation of Changes in Trabecular Bone Architecture and Mechanical Properties of Minipig Vertebrae by Three‐Dimensional Magnetic Resonance Microimaging and Finite Element Modeling by Borah, B., Dufresne, T. E., Cockman, M. D., Gross, G. J., Sod, E. W., Myers, W. R., Combs, K. S., Higgins, R. E., Pierce, S. A., Stevens, M. L.

“…The study objective was to analyze the three‐dimensional (3D) trabecular architecture and mechanical properties in vertebral specimens of young and mature…”
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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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Identification of S VIII through S XIV emission lines between 17.5 and 50 nm in a magnetically confined plasma by McCarthy, K J, Tamura, N, Combs, S K, García, R, Hernández Sánchez, J, Navarro, M, Panadero, N, Pastor, I, Soleto, A

“…43 spectral emission lines from F-like to Li-like sulphur ions have been identified in the wavelength range from 17.5 to 50 nm in spectra obtained following…”
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Mitigation of tokamak disruptions using high-pressure gas injection by Whyte, D G, Jernigan, T C, Humphreys, D A, Hyatt, A W, Lasnier, C J, Parks, P B, Evans, T E, Rosenbluth, M N, Taylor, P L, Kellman, A G, Gray, D S, Hollmann, E M, Combs, S K

“…High-pressure gas-jet injection of neon and argon is shown to be a simple and robust method to mitigate the deleterious effects of disruptions on the DIII-D…”
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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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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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ORNL mock-up tests of inside launch pellet injection on JET and LHD by Combs, S.K, Baylor, L.R, Fisher, P.W, Foust, C.R, Gouge, M.J, Pavarin, D, Sakamoto, R, Twynam, P, Watson, M, Yamada, H

“…In experiments on ASDEX-Upgrade and DIII-D tokamaks, the injection of D 2 pellets from the magnetic high-field side of the plasma resulted in deeper pellet…”
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Pellet delivery and survivability through curved guide tubes for fusion fueling and its implications for ITER by Combs, S.K., Baylor, L.R., Caughman, J.B.O., Fehling, D.T., Foust, C.R., Jernigan, T.C., Maruyama, S., McGill, J.M., Rasmussen, D.A., Ridenour, J.A., Watson, M.

“…Injection of solid hydrogen pellets from the magnetic high-field side will be the primary technique for depositing fuel particles into the core of…”
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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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Fueling of QH-mode plasmas on DIII-D with pellets and gas by Baylor, L.R., Jernigan, T.C., Burrell, K.H., Combs, S.K., Doyle, E.J., Gohil, P., Greenfield, C.M., Lasnier, C.J., West, W.P.

“…The quiescent high confinement mode (QH-mode) discovered on DIII-D [K.H. Burrell et al. Phys. Plasmas 8 (2001) 2153; C.M. Greenfield et al. Phys. Rev. Lett. 86…”
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State of the art and perspective of high-speed pellet injection technology by Bombarda, F., Frattolillo, A., Migliori, S., Iannone, F., Podda, S., D’Elia, G., Baylor, L.R., Combs, S.K.

“…•Larger and hotter fusion devices require high speed pellets for fuelling and density profile tailoring.•Long plasma pulses require repetitive pellet…”
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Test of an extruder feed system on the Tore Supra centrifugal pellet injector by Géraud, A, Artaud, J.F, Gros, G, Pocheau, C, Combs, S.K, Foust, C.R

“…A deuterium ice extruder feed system has been developed by ORNL for adaptation to the existing ORNL Centrifugal Pellet Injector installed on Tore Supra. A…”
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The ferret as a small animal model with BMU-based remodeling for skeletal research by MACKEY, M. S, STEVENS, M. L, EBERT, D. C, TRESSLER, D. L, COMBS, K. S, LOWRY, C. K, SMITH, P. N, MCOSKER, J. E

“…The need exists for a small animal model with bone metabolic unit (BMU)-based remodeling to mimic the bone loss found in postmenopausal women. The purpose of…”
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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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