Search Results - "Hyatt, A. W."

Achievement of Reactor-Relevant Performance in Negative Triangularity Shape in the DIII-D Tokamak by Austin, M E, Marinoni, A, Walker, M L, Brookman, M W, deGrassie, J S, Hyatt, A W, McKee, G R, Petty, C C, Rhodes, T L, Smith, S P, Sung, C, Thome, K E, Turnbull, A D

“…Plasma discharges with a negative triangularity (δ=-0.4) shape have been created in the DIII-D tokamak with a significant normalized beta (β_{N}=2.7) and…”
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Integration of full divertor detachment with improved core confinement for tokamak fusion plasmas by Wang, L., Wang, H. Q., Ding, S., Garofalo, A. M., Gong, X. Z., Eldon, D., Guo, H. Y., Leonard, A. W., Hyatt, A. W., Qian, J. P., Weisberg, D. B., McClenaghan, J., Fenstermacher, M. E., Lasnier, C. J., Watkins, J. G., Shafer, M. W., Xu, G. S., Huang, J., Ren, Q. L., Buttery, R. J., Humphreys, D. A., Thomas, D. M., Zhang, B., Liu, J. B.

“…Divertor detachment offers a promising solution to the challenge of plasma-wall interactions for steady-state operation of fusion reactors. Here, we…”
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Compatibility of the radiating divertor with high performance plasmas in DIII-D by Petrie, T.W., Wade, M.R., Brooks, N.H., Fenstermacher, M.E., Groth, M., Hyatt, A.W., Isler, R.C., Lasnier, C.J., Leonard, A.W., Mahdavi, M.A., Porter, G.D., Schaffer, M.J., Watkins, J.G., West, W.P.

“…A radiating divertor approach was successfully applied to high performance ‘hybrid’ plasmas [M.R. Wade et al., in: Proceedings of the 20th IAEA Fusion Energy…”
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A high-density and high-confinement tokamak plasma regime for fusion energy by Ding, S., Garofalo, A. M., Wang, H. Q., Weisberg, D. B., Li, Z. Y., Jian, X., Eldon, D., Victor, B. S., Marinoni, A., Hu, Q. M., Carvalho, I. S., Odstrčil, T., Wang, L., Hyatt, A. W., Osborne, T. H., Gong, X. Z., Qian, J. P., Huang, J., McClenaghan, J., Holcomb, C. T., Hanson, J. M.

“…The tokamak approach, utilizing a toroidal magnetic field configuration to confine a hot plasma, is one of the most promising designs for developing reactors…”
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Plasma control system for “Day-One” operation of KSTAR tokamak by Hahn, Sang-hee, Walker, M.L., Kim, Kukhee, Ahn, H.S., Penaflor, B.G., Piglowski, D.A., Johnson, R.D., Choi, Jaehoon, Lee, Dong-keun, Kim, Jayhyun, Yoon, S.W., Seo, Seong-Heon, Kim, H.T., Kim, K.P., Lee, T.G., Park, M.K., Bak, J.G., Lee, S.G., Nam, Y.U., Eidietis, N.W., Leuer, J.A., Hyatt, A.W., Jackson, G.L., Mueller, D., Welander, A.S., Abla, G., Humphreys, D.A., Kim, W.C., Oh, Yeong-Kook

“…A complete plasma control system (PCS) has been developed for KSTAR’s first plasma campaign as a collaborative project with the DIII-D team. The KSTAR real…”
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Author Correction: A high-density and high-confinement tokamak plasma regime for fusion energy by Ding, S., Garofalo, A. M., Wang, H. Q., Weisberg, D. B., Li, Z. Y., Jian, X., Eldon, D., Victor, B. S., Marinoni, A., Hu, Q. M., Carvalho, I. S., Odstrčil, T., Wang, L., Hyatt, A. W., Osborne, T. H., Gong, X. Z., Qian, J. P., Huang, J., McClenaghan, J., Holcomb, C. T., Hanson, J. M.

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First results examining the compatibility of RMP ELM suppression with the radiating divertor in DIII-D by Petrie, T.W., Evans, T.E., Fenstermacher, M.E., Mordijck, S., Brooks, N.H., Ferron, J.R., Hudson, B., Hyatt, A.W., Lasnier, C.J., Leonard, A.W., Luce, T.C., Moyer, R.A., Politzer, P.A., Schaffer, M.J., Snyder, P.B., Watkins, J.G.

“…We report on recent DIII-D experiments that integrate edge localized mode (ELM) suppression using resonant magnetic perturbations (RMPs) with divertor heat…”
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Migration of artificially introduced micron-size carbon dust in the DIII-D divertor by Rudakov, D.L., West, W.P., Wong, C.P.C., Brooks, N.H., Evans, T.E., Fenstermacher, M.E., Groth, M., Krasheninnikov, S.I., Lasnier, C.J., McLean, A.G., Pigarov, A.Yu, Solomon, W.M., Antar, G.Y., Boedo, J.A., Doerner, R.P., Hollmann, E.M., Hyatt, A.W., Moyer, R.A., Watkins, J.G.

“…Migration of pre-characterized carbon dust in a tokamak environment was studied by introduction of ∼30mg of micron-size (∼6μm median diameter) dust in the…”
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DIII-D Integrated plasma control solutions for ITER and next-generation tokamaks by Humphreys, D.A., Ferron, J.R., Hyatt, A.W., La Haye, R.J., Leuer, J.A., Penaflor, B.G., Walker, M.L., Welander, A.S., In, Y.

“…Plasma control design approaches and solutions developed at DIII-D to address its control-intensive advanced tokamak (AT) mission are applicable to many…”
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Plasma Startup Design of Fully Superconducting Tokamaks EAST and KSTAR With Implications for ITER by Leuer, J.A., Eidietis, N.W., Ferron, J.R., Humphreys, D.A., Hyatt, A.W., Jackson, G.L., Johnson, R.D., Penaflor, B.G., Piglowski, D.A., Walker, M.L., Welander, A.S., Yoon, S.W., Hahn, S.H., Oh, Y.K., Xiao, B.J., Wang, H.Z., Yuan, Q.P., Mueller, D.

“…Recent commissioning of two major fully superconducting (SC)-shaped tokamaks, Experimental Advanced Superconducting Tokamak (EAST) and Korean Superconducting…”
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Plasma impurity content, gas fueling, and exhaust on DIII-D over extended periods between boronizations by West, W.P., Groth, M., Hyatt, A.W., Brooks, N.H., Jackson, G.L., Wade, M.R., Greenfield, C.M.

“…During the 2006 and 2007 DIII-D experimental campaigns the rate of boronization events was reduced significantly from past campaigns with no detrimental…”
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Physics Operations With the DIII-D Plasma Control System by Hyatt, A.W., Ferron, J.R., Humphreys, D.A., Chamberlain, F.R., Johnson, R.D., Penaflor, B.G., Piglowski, D.A., Scoville, J.T., Walker, M.L.

“…The DIII-D device began operation in 1986, and a fully digital plasma control system (PCS) was implemented in 1993. Over time, the success of the PCS to…”
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Sensitivity of injected argon behavior to changes in magnetic balance in double-null plasmas in DIII-D by Petrie, T.W., Brooks, N.H., Fenstermacher, M.E., Groth, M., Hyatt, A.W., Lasnier, C.J., Leonard, A.W., Porter, G.D., Schaffer, M.J., Wade, M.R., Watkins, J.G., West, W.P.

“…Recent DIII-D experiments show that both magnetic balance and particle drifts are important to understanding how argon impurities accumulate in balanced and…”
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Heat flux management via advanced magnetic divertor configurations and divertor detachment by Kolemen, E., Allen, S.L., Bray, B.D., Fenstermacher, M.E., Humphreys, D.A., Hyatt, A.W., Lasnier, C.J., Leonard, A.W., Makowski, M.A., McLean, A.G., Maingi, R., Nazikian, R., Petrie, T.W., Soukhanovskii, V.A., Unterberg, E.A.

“…The snowflake divertor (SFD) control and detachment control to manage the heat flux at the divertor are successfully demonstrated at DIII-D. Results of the…”
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Radiative snowflake divertor studies in DIII-D by Soukhanovskii, V.A., Allen, S.L., Fenstermacher, M.E., Hill, D.N., Lasnier, C.J., Makowski, M.A., McLean, A.G., Meyer, W.H., Kolemen, E., Groebner, R.J., Hyatt, A.W., Leonard, A.W., Osborne, T.H., Petrie, T.W.

“…Recent DIII-D experiments assessed the snowflake divertor (SF) configuration in a radiative regime in H-mode discharges with D2 seeding. The SF configuration…”
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A Fusion Nuclear Science Facility for a fast-track path to DEMO by Garofalo, A.M., Abdou, M.A., Canik, J.M., Chan, V.S., Hyatt, A.W., Hill, D.N., Morley, N.B., Navratil, G.A., Sawan, M.E., Taylor, T.S., Wong, C.P.C., Wu, W., Ying, A.

“…•A FNSF is needed to reduce the knowledge gaps to a fusion DEMO and accelerate progress toward fusion energy.•FNSF will test and qualify first-wall/blanket…”
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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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High precision strike point control to support experiments in the DIII-D small angle slot divertor by Eldon, D., Hyatt, A.W., Covele, B., Eidietis, N., Guo, H.Y., Humphreys, D.A., Moser, A.L., Sammuli, B., Walker, M.L.

“…•Improved strike point position control at DIII-D to ±1 mm precision.•Precise control supports experiments in the small angle slot divertor at DIII-D.•Upgraded…”
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Tokamak operation with safety factor q95 < 2 via control of MHD stability by Piovesan, P, Hanson, J M, Martin, P, Navratil, G A, Turco, F, Bialek, J, Ferraro, N M, La Haye, R J, Lanctot, M J, Okabayashi, M, Paz-Soldan, C, Strait, E J, Turnbull, A D, Zanca, P, Baruzzo, M, Bolzonella, T, Hyatt, A W, Jackson, G L, Marrelli, L, Piron, L, Shiraki, D

“…Magnetic feedback control of the resistive-wall mode has enabled the DIII-D tokamak to access stable operation at safety factor q(95) = 1.9 in divertor plasmas…”
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Improved fast vertical control in KSTAR by Mueller, D., Hahn, S.H., Eidietis, N., Bak, J.G., Boyer, M.D., Humphreys, D.A., Hyatt, A.W., Jeon, Y.M., Kim, H.S., Walker, M.

“…Fast vertical control of shaped plasmas is essential for the successful realization of plasma operation near the limit of vertical control to achieve maximum…”
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