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Growth rates of fusion product driven lower hybrid drift instability

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Cook, James William S., Chapman, Sandra C. and Dendy, R. O. (2010) Growth rates of fusion product driven lower hybrid drift instability. In: 37th EPS Conference on Plasma Physics, Dublin, Ireland, 21-25 June 2010. Published in: Europhysics conference abstracts, Vol.34A P5.146.

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Official URL: http://ocs.ciemat.es/EPS2010PAP/pdf/P5.146.pdf

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Abstract

We present particle-in-cell (PIC) simulations of minority energetic protons in a deuterium plasma, which undergo a collective instability. We focus on obliquely propagating
modes under conditions appropriate to the outer mid-plane edge in a large tokamak, through
which pass confined centrally born fusion products on banana orbits that have large radial
excursions. A fully self-consistent electromagnetic relativistic PIC code representing all
vector field quantities and particle velocities in three dimensions as functions of a single
spatial dimension is used to model this situation by evolving the initial antiparallel travelling ring-beam distribution of 3MeV protons in a background 10keV Maxwellian deuterium plasma with realistic ion-electron mass ratio. Growth rates of the instability have
been calculated for a range of oblique angles and proton-deuterium concentration ratios,
using electric field and particle data.

Item Type: Conference Item (Paper)
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): Tokamaks, Energy transfer, Collisions (Nuclear physics)
Journal or Publication Title: Europhysics conference abstracts
Official Date: 2010
Dates:
DateEvent
2010Published
Volume: Vol.34A
Page Range: P5.146
Status: Not Peer Reviewed
Publication Status: Published
Conference Paper Type: Paper
Title of Event: 37th EPS Conference on Plasma Physics
Type of Event: Conference
Location of Event: Dublin, Ireland
Date(s) of Event: 21-25 June 2010

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