The effect of trapped electrons on beam driven currents in toroidal plasmas

Start, D.F.H.; Cordey, J.G.; Jones, E. M.

doi:10.1088/0032-1028/22/4/002

Cited by 45 publications

(24 citation statements)

References 9 publications

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“…͓S1070-664X͑97͒01611-X͔ It is well-known that trapped electrons play an important role in determining the magnitude of neutral beam current drive ͑NBCD͒ in toroidal geometry. [1][2][3][4][5][6][7] In modeling NBCD, 8 the beam driven current density is often written as…”

mentioning

confidence: 99%

Trapped electron correction to beam driven current in general tokamak equilibria

Lin‐Liu

Hinton

1997

Physics of Plasmas

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An analytical model of computing ion energy distributions for multiple frequencies capacitive discharges J. Appl. Phys. 112, 063306 (2012) Magnetic reconnection in space Phys. Plasmas 19, 092902 (2012) Separate control of the ion flux and ion energy in capacitively coupled radio-frequency discharges using voltage waveform tailoring Appl. Phys. Lett. 101, 124104 (2012) Nonlinear electron-magnetohydrodynamic simulations of three dimensional current shear instability Phys. Plasmas 19, 092305 (2012) Additional information on Phys. Plasmas

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confidence: 99%

Trapped electron correction to beam driven current in general tokamak equilibria

Lin‐Liu

Hinton

1997

Physics of Plasmas

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“…This result can't be clearly concluded from Eq. (1), but given the inverse aspect ratio, pitch angle, bounce average and other corrections, the beam drive efficiency is proportional to I ion /n e [9,13]. In these simulative experiments, high density results in more collision and ionization probability between beam atoms and bulk ions, so I ion increases with the increasing n e .…”

Section: Different Plasma Densitymentioning

confidence: 95%

The Simulation of Certain Properties of Plasma Affecting Beam-Driven Current in EAST

Wang

et al. 2014

J Fusion Energ

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Some properties of plasma are investigated for the impact of the beam-driven current in experimental advanced superconducting tokamak (EAST). Beam-driven current simulation experiments have been performed to study beam-driven current due to the density, temperature and Z eff of plasma for the on-axis injection. These impact factors for the co-injection and counter-injection are considered qualitatively and quantitatively under some certain specified experimental conditions to guide the future EAST experimental campaign.

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“…The current drive efficiencies of LHCD [7,8], ECCD [9]) and NBCD [10][11][12] are all proportional to the electron temperature T e . Then the driven current I cd is…”

Section: The Q CD Value For Plasma Current Balancementioning

confidence: 99%

“…Therefore the sensitivities of their variation ΔQ and ΔQ cd on their variables must be taken into account. Since Q is given by (11) in the form of…”

Section: Sensitivity Of Q and Q CD On Plasma Parametersmentioning

confidence: 99%

Scaling Law of Non-Inductive Current Drive Steady State Tokamak

Miyamoto

2012

Plasma and Fusion Research

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In non-inductive current drive steady state operation of tokamak reactor, it is desirable that the Q cd value determined by the plasma current balance is the same as the Q value determined by the plasma energy balance [Progress in the ITER Physics Basis, Nucl. Fusion 47, S285 (2007)]. The more quantitative scaling laws of Q and Q cd are derived from the scaling laws of electron density, beta ratio, energy confinement time and current drive efficiency. The reduced scaling laws of Q and Q cd are examined by comparison with the data of the standard scenario of inductive operation and the reference scenario of non-inductive operation of ITER. Sensitivities of Q and Q cd on the plasma parameters are studied and requirement is examined to satisfy Q cd ≈ Q.

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The effect of trapped electrons on beam driven currents in toroidal plasmas

Cited by 45 publications

References 9 publications

Trapped electron correction to beam driven current in general tokamak equilibria

Trapped electron correction to beam driven current in general tokamak equilibria

The Simulation of Certain Properties of Plasma Affecting Beam-Driven Current in EAST

Scaling Law of Non-Inductive Current Drive Steady State Tokamak

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