Zobrazeno 1 - 10
of 1 710
pro vyhledávání: '"Harrison, P. R."'
Autor:
Federici, Fabio, Reinke, Matthew L., Lipschultz, Bruce, Lovell, Jack J., Verhaegh, Kevin, Cowley, Cyd, Kryjak, Mike, Ryan, Peter, Thornton, Andrew J., Harrison, James R., Peterson, Byron J., Lomanowski, Bartosz, Lore, Jeremy D., Damizia, Yacopo
Plasma detachment involves interactions of the plasma with impurities and neutral particles, leading to significant losses of plasma power, momentum, and particles. Accurate mapping of plasma emissivity in the divertor and X-point region is essential
Externí odkaz:
http://arxiv.org/abs/2409.02837
Autor:
Verhaegh, K., Harrison, J. R., Moulton, D., Lipschultz, B., Lonigro, N., Osborne, N., Ryan, P., Theiler, C., Wijkamp, T., Brida, D., Cowley, C., Derks, G., Doyle, R., Federici, F., Kool, B., Février, O., Hakola, A., Henderson, S., Reimerdes, H., Thornton, A. J., Vianello, N., Wischmeier, M., Xiang, L.
Exhausting power from the hot fusion core to the plasma-facing components is one of the biggest challenges in fusion energy. The MAST Upgrade tokamak uniquely integrates strong containment of neutrals within the exhaust area (divertor) with extreme d
Externí odkaz:
http://arxiv.org/abs/2311.08586
Autor:
Verhaegh, K., Harrison, J. R., Lipschultz, B., Lonigro, N., Kobussen, S., Moulton, D., Osborne, N., Ryan, P., Theiler, C., Wijkamp, T., Brida, D., Derks, G., Doyle, R., Federici, F., Hakola, A., Henderson, S., Kool, B., Newton, S., Osawa, R., Pope, X., Reimerdes, H., Vianello, N., Wischmeier, M.
This experimental study presents an in-depth investigation of the performance of the MAST-U Super-X divertor during NBI-heated operation (up to 2.5 MW) focussing on volumetric ion sources and sinks as well as power losses during detachment. The parti
Externí odkaz:
http://arxiv.org/abs/2311.08580
Autor:
Harrison, Geoffrey R., Saule, Tobias, Goetz, R. Esteban, Gibson, George N., Le, Anh-Thu, Trallero-Herrero, Carlos A.
We present a high precision, self-referencing, common path XUV interferometer setup to produce pairs of spatially separated and independently controllable XUV pulses that are locked in phase and time. The spatial separation is created by introducing
Externí odkaz:
http://arxiv.org/abs/2305.17263
Publikováno v:
Appl. Opt. 61, 8873-8879 (2022)
The ability of spatial light modulators (SLMs) to modify the amplitude and phase of light has proved them invaluable to the optics and photonics community. In many applications the bit-depth of SLMs is a major limiting factor dictated by the digital
Externí odkaz:
http://arxiv.org/abs/2211.10311
Over the past decade the use of machine learning in meteorology has grown rapidly. Specifically neural networks and deep learning have been used at an unprecedented rate. In order to fill the dearth of resources covering neural networks with a meteor
Externí odkaz:
http://arxiv.org/abs/2211.00147
The rise of interest in the study of quantum emitters has recently prompted many research groups to construct their own confocal epifluorescence microscopy/spectroscopy instruments. The low light levels typically involved in quantum emitter measureme
Externí odkaz:
http://arxiv.org/abs/2206.10705
Publikováno v:
Weather and Forecasting 37 (2022) 1509-1529
Recently, the use of machine learning in meteorology has increased greatly. While many machine learning methods are not new, university classes on machine learning are largely unavailable to meteorology students and are not required to become a meteo
Externí odkaz:
http://arxiv.org/abs/2204.07492
Autor:
Verhaegh, K, Lipschultz, B, Harrison, J R, Duval, B P, Bowman, C, Fil, A, Gahle, D S, Moulton, D, Myatra, O, Perek, A, Theiler, C, Wensing, M
Publikováno v:
Nuclear Materials and Energy, 100922, 2021
In this work we provide experimental insights into the impact of plasma-molecule interactions on the target ion flux decrease during divertor detachment achieved through a core density ramp in the TCV tokamak. Our improved analysis of the hydrogen Ba
Externí odkaz:
http://arxiv.org/abs/2008.00272
Autor:
Verhaegh, K, Lipschultz, B, Bowman, C, Duval, B P, Fantz, U, Fil, A, Harrison, J R, Moulton, D, Myatra, O, Wünderlich, D, Federici, F, Gahle, D S, Perek, A, Wensing, M, team, the TCV, team, the EuroFusion MST1
Publikováno v:
Plasma Phys. Control. Fusion 63 035018 (2021)
Detachment, an important mechanism for reducing target heat deposition, is achieved through reductions in power, particle and momentum; which are induced through plasma-atom and plasma-molecule interactions. Experimental research in how those reactio
Externí odkaz:
http://arxiv.org/abs/2008.00288