Progress towards numerical and experimental simulations of fusion relevant beam instabilities

15th International Congress on Plasma Physics; 13th Latin American Workshop on Plasma Physics

King, M.^1 ; Bryson, R.^1 ; Ronald, K.^1 ; Cairns, R.A.^2 ; McConville, S.L.^1 ; Speirs, D.C.^1 ; Phelps, A.D.R.^1 ; Bingham, R.^1,3 ; Gillespie, K.M.^1 ; Cross, A.W.^1 ; Vorgul, I.^2 ; Trines, R.^3

SUPA, Department of Physics, University of Strathclyde, G4 0NG Glasgow, United Kingdom^1

School of Mathematics and Statistics, University of St Andrews, Fife, KY16 9SS, United Kingdom^2

STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, United Kingdom^3

关键词: Beam instability;    Computational simulation;    Cyclotron resonance maser;    Designing an experiment;    Experimental simulations;    Magnetic confinement fusions;    Two stream instability;    University of Strathclyde;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/511/1/012047/pdf
DOI  :  10.1088/1742-6596/511/1/012047

来源: IOP

【 摘 要 】

In certain plasmas, non-thermal electron distributions can produce instabilities. These instabilities may be useful or potentially disruptive. Therefore the study of these instabilities is of importance in a variety of fields including fusion science and astrophysics. Following on from previous work conducted at the University of Strathclyde on the cyclotron resonance maser instability that was relevant to astrophysical radiowave generation, further instabilities are being investigated. Particular instabilities of interest are the anomalous Doppler instability which can occur in magnetic confinement fusion plasmas and the two-stream instability that is of importance in fast-ignition inertial confinement fusion. To this end, computational simulations have been undertaken to investigate the behaviour of both the anomalous Doppler and two-stream instabilities with the goal of designing an experiment to observe these behaviours in a laboratory.