Search Results - "Sammuli, B."

Real-Time Magnetic Sensor Anomaly Detection Using Autoencoder Neural Networks on the DIII-D Tokamak by Anand, H., Sammuli, B. S., Olofsson, K. E. J., Humphreys, D. A.

“…Magnetic diagnostics in tokamaks are key to plasma equilibrium control (plasma current, plasma shape, and position) and amelioration of plasma instabilities…”
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Avoidance of vertical displacement events in DIII-D using a neural network growth rate estimator by Sammuli, B.S., Barr, J.L., Humphreys, D.A.

“…•A neural network was used to emulate an expensive physics calculation.•The surrogate model was able to estimate its own uncertainty.•The model was integrated…”
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Model-predictive kinetic control with data-driven models on EAST by Moreau, D., Wang, S., Qian, J.P., Yuan, Q., Huang, Y., Li, Y., Ding, S., Du, H., Gong, X., Li, M., Liu, H., Luo, Z., Zeng, L., Olofsson, E., Sammuli, B., Artaud, J.F., Ekedahl, A., Witrant, E.

“…Abstract In this work, model-predictive control (MPC) was combined for the first time with singular perturbation theory, and an original plasma kinetic control…”
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Real-time plasma equilibrium reconstruction and shape control for the MAST Upgrade tokamak by Anand, H., Wehner, W., Eldon, D., Welander, A., Xing, Z., Lvovskiy, A., Barr, J., Cho, E., Sammuli, B., Humphreys, D., Eidietis, N., Leonard, A., Kochan, M., Vincent, C., McArdle, G., Cunningham, G., Thornton, A., Harrison, J., Soukhanovskii, V., Lovell, J.

“…Abstract Real-time magnetic control has been developed to deliver precise control of multiple plasma shape parameters for advanced divertor configurations,…”
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Real-time estimation and control of divertor surface heat flux on the DIII-D tokamak by Anand, H., Eldon, D., Humphreys, D., Hyatt, A., Sammuli, B., Welander, A., Barr, J., Scotti, F., Boedo, J.

“…•A new system has been developed at DIII-D that estimates and controls in real-time the heat flux to the plasma-facing components.•Real-time estimation of the…”
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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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Fabrication of SiC–SiC composites for fuel cladding in advanced reactor designs by Deck, C.P., Khalifa, H.E., Sammuli, B., Hilsabeck, T., Back, C.A.

“…Both advanced fission reactor concepts and fusion energy systems demand materials that can survive extremely harsh operating environments having persistent…”
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Development and Commissioning of GALADRIEL, the General Atomics LAboratory for Developing Rep-Rated Instrumentation and Experiments with Lasers by Collin, G. W., Manuel, M. J.-E., McGuffey, C., Dautt-Silva, A., Jaris, M., Vollmer, D., Sammuli, B., Margo, M.

“…As High Energy Density (HED) sciences and their corresponding facilities advance into higher rep-rate and energy regimes, the diagnostics, targets, and data…”
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Upgrade of EAST plasma control system for steady-state advanced operation by Yuan, Q.P., Tang, J.Y., Penaflor, B., Johnson, R., Wu, K., Piglowski, D., Zhang, R.R., Xiao, B.J., Chai, W.T, Anyanetu, I., Sammuli, B., Kostuk, M.

“…The EAST plasma control system (PCS) undergoes continuous development and upgrade to achieve major goals of EAST steady-state advanced operation. According to…”
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Requirements management support for the ITER Plasma Control System in view of first plasma operations by Cinque, M., Fucci, F., De Tommasi, G., de Vries, P.C., Gomez, I., Sammuli, B., Snipes, J., Treutterer, W., Walker, M., Winter, A., Zabeo, L.

“…In a complex project as the ITER one, it is essential to rely on a system-engineering oriented approach for requirements management, to both track the…”
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Hazard function exploration of tokamak tearing mode stability boundaries by Olofsson, K.E.J., Sammuli, B.S., Humphreys, D.A.

“…•First large-scale database analysis of tokamak tearing mode onset intensities.•Hazard functions are tested for and shown to be statistically…”
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Modeling Forced Flow Chemical Vapor Infiltration Fabrication of SiC-SiC Composites for Advanced Nuclear Reactors by Back, C. A., Sammuli, B., Khalifa, H. E., Deck, Christian P.

“…Silicon carbide fiber/silicon carbide matrix (SiC-SiC) composites exhibit remarkable material properties, including high temperature strength and stability…”
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TokSearch: A search engine for fusion experimental data by Sammuli, B.S., Barr, J.L., Eidietis, N.W., Olofsson, K.E.J., Flanagan, S.M., Kostuk, M., Humphreys, D.A.

“…At a typical fusion research site, experimental data is stored using archive technologies that deal with each discharge as an independent set of data. These…”
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Achievements and lessons learned from the operation of KSTAR plasma control system upgrade by Hahn, Sang-hee, Penaflor, B.G., Milne, P.G., Bak, J.G., Eidietis, N.W., Han, H., Hong, J.S., Jeon, Y.M., Johnson, R.D., Kim, H.-S., Kim, HeungSu, Kim, Y.J., Kwon, G.I., Lee, W.R., Woo, M.H., Sammuli, B.S., Walker, M.L.

“…Results on the integration and the operation of the KSTAR plasma control system (PCS) upgrade are given. Real-time hardware, new realtime-capable operating…”
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Remote control of a fusion facility by Schissel, D.P., Abla, G., Humphreys, D.A., Penaflor, B.G., Sammuli, B.S., Walker, M.L.

“…Magnetic fusion experiments keep growing in size and complexity resulting in a concurrent growth in collaboration between experimental sites and laboratories…”
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Development environments for Tokamak plasma control by Walker, M. L., Humphreys, D. A., Sammuli, B., Welander, A. S., Mattei, M., Winter, A., Snipes, J., de Vries, P., Neu, G., Treutterer, W., Raupp, G., Rapson, C., Ambrosino, G., De Tommasi, G.

“…We describe a software system known as the Plasma Control System Simulation Platform (PCSSP) that is being constructed to support development of the ITER…”
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Approaches to tokamak off-normal event detection and response at DIII-D, KSTAR, and EAST by Sammuli, B.S., Walker, M.L., Humphreys, D.A., Ferron, J.R., Johnson, R.D., Penaflor, B.G., Piglowski, D.A., Hahn, S.H., Hong, J., Xiao, B., Yuan, Q.

“…The DIII-D digital plasma control system (PCS) has been adapted and used at a number of tokamaks around the world over the past several years. Implementations…”
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Accumulated experiences from implementations of the DIII-D plasma control system worldwide by Piglowski, D.A., Humphreys, D.A., Walker, M.L., Ferron, J.R., Penaflor, B.G., Johnson, R.D., Sammuli, B., Xiao, B., Hahn, S.H., Mastrovito, D.M.

“…The current DIII-D plasma control system (PCS) has evolved through several iterations into a robust platform that has been adopted at several fusion devices…”
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Implications for ITER CODAC from DIII-D experience by Walker, M.L., Ferron, J.R., Humphreys, D.A., Hyatt, A.W., Johnson, R.D., Leuer, J.A., Penaflor, B.G., Piglowski, D.A., Sammuli, B.S., Welander, A.S., Bongard, M.W., Gates, D., Hahn, S.H., McArdle, G.J., Squitieri, A.A., Xiao, B.

“…The DIII-D digital plasma control system (D3PCS) has been in use since 1993 controlling DIII-D plasmas. Control research and D3PCS development at DIII-D has…”
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Avoidance of vertical displacement events in DIII-D using a neural network growth rate estimator by Sammuli, B. S., Barr, J. L., Humphreys, D. A.

“…Not provided…”
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