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1.	Fenstermacher, M.E., et al. (author) DIII-D research advancing the physics basis for optimizing the tokamak approach to fusion energy 2022 In: Nuclear Fusion. - : IOP Publishing. - 0029-5515 .- 1741-4326. ; 62:4 Journal article (peer-reviewed)abstract DIII-D physics research addresses critical challenges for the operation of ITER and the next generation of fusion energy devices. This is done through a focus on innovations to provide solutions for high performance long pulse operation, coupled with fundamental plasma physics understanding and model validation, to drive scenario development by integrating high performance core and boundary plasmas. Substantial increases in off-axis current drive efficiency from an innovative top launch system for EC power, and in pressure broadening for Alfven eigenmode control from a co-/counter-I p steerable off-axis neutral beam, all improve the prospects for optimization of future long pulse/steady state high performance tokamak operation. Fundamental studies into the modes that drive the evolution of the pedestal pressure profile and electron vs ion heat flux validate predictive models of pedestal recovery after ELMs. Understanding the physics mechanisms of ELM control and density pumpout by 3D magnetic perturbation fields leads to confident predictions for ITER and future devices. Validated modeling of high-Z shattered pellet injection for disruption mitigation, runaway electron dissipation, and techniques for disruption prediction and avoidance including machine learning, give confidence in handling disruptivity for future devices. For the non-nuclear phase of ITER, two actuators are identified to lower the L-H threshold power in hydrogen plasmas. With this physics understanding and suite of capabilities, a high poloidal beta optimized-core scenario with an internal transport barrier that projects nearly to Q = 10 in ITER at ∼8 MA was coupled to a detached divertor, and a near super H-mode optimized-pedestal scenario with co-I p beam injection was coupled to a radiative divertor. The hybrid core scenario was achieved directly, without the need for anomalous current diffusion, using off-axis current drive actuators. Also, a controller to assess proximity to stability limits and regulate β N in the ITER baseline scenario, based on plasma response to probing 3D fields, was demonstrated. Finally, innovative tokamak operation using a negative triangularity shape showed many attractive features for future pilot plant operation.
2.	Aartsen, M. G., et al. (author) Very high-energy gamma-ray follow-up program using neutrino triggers from IceCube 2016 In: Journal of Instrumentation. - 1748-0221 .- 1748-0221. ; 11 Journal article (peer-reviewed)abstract We describe and report the status of a neutrino-triggered program in IceCube that generates real-time alerts for gamma-ray follow-up observations by atmospheric-Cherenkov telescopes (MAGIC and VERITAS). While IceCube is capable of monitoring the whole sky continuously, high-energy gamma-ray telescopes have restricted fields of view and in general are unlikely to be observing a potential neutrino-flaring source at the time such neutrinos are recorded. The use of neutrino-triggered alerts thus aims at increasing the availability of simultaneous multi-messenger data during potential neutrino flaring activity, which can increase the discovery potential and constrain the phenomenological interpretation of the high-energy emission of selected source classes (e. g. blazars). The requirements of a fast and stable online analysis of potential neutrino signals and its operation are presented, along with first results of the program operating between 14 March 2012 and 31 December 2015.
3.	Ulander, Lars, 1962, et al. (author) Bistatic Experiment with Ultra-Wideband VHF-band Synthetic-Aperture Radar 2008 In: in Proceedings of EUSAR 2008, 7th European Conference on Synthetic Aperture Radar, Friedrichshafen, GE, 2-5 June 2008. ; 1, s. 131-134 Conference paper (other academic/artistic)

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Type of publication: journal article (2); conference paper (1)

Type of content: peer-reviewed (2); other academic/artistic (1)

Author/Editor: Hansen, E. (2); Liu, X (1); Bohm, Christian (1); Chen, X. (1); Huang, Y. (1); Hughes, G. (1); show more...; Izzo, V. (1); Ji, H. (1); King, M. (1); Kobayashi, T. (1); Kolanoski, H. (1); Kopke, L. (1); Li, L. (1); Li, Y. (1); Liu, D. (1); Liu, Y. (1); Martinez, M. (1); Nelson, A. (1); Pohl, M. (1); Pueschel, E. (1); Qian, J. (1); Relich, M. (1); Sadeh, I. (1); Su, D. (1); Suzuki, Y. (1); Wang, H. (1); White, R. (1); Wu, M. (1); Wu, Y. (1); Yan, Z. (1); Yu, J. (1); Zhang, J. (1); Zhang, L. (1); Zhang, X. (1); Zhu, J. (1); Zhu, Y. (1); Hu, Q. (1); Liu, J. (1); Zhang, R. (1); Brown, G. (1); Christov, A. (1); Li, X. (1); Xu, C. (1); Zhao, L. (1); Liu, C. (1); Smith, D. (1); Saito, T (1); Banerjee, S. (1); Liu, T. (1); Han, H. (1); show less...

University: Chalmers University of Technology (2); Royal Institute of Technology (1); Uppsala University (1); Stockholm University (1)

Language: English (3)

Research subject (UKÄ/SCB): Engineering and Technology (3)Undo refine; Natural sciences (2)

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