Results 1 to 10 of about 515,702 (289)

Magnetic control of particle-injection in plasma based accelerators [PDF]

Physical Review Letters, 2011
The use of an external transverse magnetic field to trigger and to control electron self-injection in laser- and particle-beam driven wakefield accelerators is examined analytically and through full-scale particle-in-cell simulations.
J. Vieira, L. O. Silva, M. Kumada, R. A. Fonseca, S. F. Martins, V. B. Pathak, W. B. Mori   +6 more
core   +7 more sources

Practicality of magnetic compression for plasma density control [PDF]

Physics of Plasmas, 2016
Plasma densification through magnetic compression has been suggested for time-resolved control of the wave properties in plasma-based accelerators. Using particle in cell simulations with real mass ratio, the practicality of large magnetic compression on
Fisch, Nathaniel J., Gueroult, Renaud
core   +4 more sources

Active optical boundary recognition with boron powder injection in a magnetic confinement device [PDF]

Scientific Reports
Accurate determination of the plasma boundary—especially the Last Closed Flux Surface (LCFS)—is crucial for understanding equilibrium, optimizing confinement, and achieving effective control in magnetic confinement devices. Conventional detection methods,
Dong Guo, Yuejiang Shi, Qifeng Xie, Hongyue Li, Chao Wu, Jia Li, Tongqing Zhou, Yonghua Ding   +7 more
doaj   +2 more sources

Multi-party quantum private size comparison protocol with d-dimensional Bell states

Frontiers in Physics, 2022
A feasible multi-party quantum private comparison (MQPC) protocol based on d-dimensional Bell states was proposed. In the protocol, all participants can independently encrypt their privacies and send them to a semi-honest quantum third party (TP) through
Bing Wang, Bing Wang, Bing Wang, Li-Hua Gong, Li-Hua Gong, San-Qiu Liu, San-Qiu Liu, San-Qiu Liu   +7 more
doaj   +1 more source

Hierarchical Cascade Control Systems for Time-Dependent Dynamical Plants as Applied to Magnetic Plasma Control in D-Shaped Tokamaks

Engineering Proceedings, 2023
The systems of poloidal field coils in D-shaped Tokamaks such as ITER, EAST, JET, ASDEX Upgrade, TCV, GLOBUS-M2, DIII-D, SPARC, IGNITOR, JT-60SA, DEMO-9.1, DEMO-1.6, T-15MD, and TRT are analyzed for their efficiency in the application of plasma position,
Yuri V. Mitrishkin
doaj   +1 more source

Development of a plasma shape and position display system for damavand tokamak control room [PDF]

مجله علوم و فنون هسته‌ای, 2023
Determining the magnetic field profile is very important for studying flux surfaces, elongation, plasma boundaries, and real-time control in tokamaks. In this research, a system for calculating and displaying the shape, position, and boundary of plasma ...
D. Iraji, H. Rasouli, Ch. Rasouli, B. Pourshahab   +3 more
doaj   +1 more source

Implementation of a High-Speed Multichannel Data Acquisition System for Magnetic Diagnostics and Plasma Centroid Position Control in ISTTOK

IEEE Access, 2023
In tokamak and other fusion devices, magnetic control is the main tool that allows to regulate the plasma current, position and shape; it is in charge of actuating the desired plasma current waveform, steering the plasma position to a given set point and
Domenica Corona, Adriano Mele, Nuno Cruz, Hugo Alves, Bernardo B. Carvalho, Humberto Figueiredo, Horacio Fernandes   +6 more
doaj   +1 more source

Adaptive Tikhonov regularization and dynamic control points for accurate shape parameter control of plasmas

Nuclear Fusion, 2023
Precise control of plasma shape parameters, such as elongation and triangularity is duly needed to achieve high-performance tokamak plasmas, for which we propose adaptive search schemes of (1) optimum regularization parameter for the Tikhonov ...
S. Inoue, S. Kojima, Y. Miyata, H. Urano, T. Suzuki   +4 more
doaj   +1 more source

Magnetic detachment and plume control in escaping magnetized plasma [PDF]

Journal of Plasma Physics, 2009
AbstractThe model of two-fluid, axisymmetric, ambipolar magnetized plasma detachment from thruster guide fields is extended to include plasmas with non-zero injection angular velocity profiles. Certain plasma injection angular velocity profiles are shown to narrow the plasma plume, thereby increasing exhaust efficiency.
P. F. SCHMIT, N. J. FISCH
openaire   +3 more sources

Magnetic pickup coil systems on the HL-3 tokamak

AIP Advances, 2023
HL-3 is a new medium-sized copper conducting tokamak, which is dedicated to the plasma shaping control for plasma high performance and flexible operation, especially the advanced divertor configurations.
A. Wang, S. Y. Liang, T. F. Sun, M. Y. He, J. M. Gao, J. Z. Zhang, R. Ma, X. Q. Ji, W. Chen   +8 more
doaj   +1 more source