The transverse dynamics of space-charge dominated beams are investigated both analytically and computationally, in order to understand the mechanisms for emittance oscillations and growth due to nonlinear space-charge fields. This work explores the role of space-charge dominated equilibrium and its relationship to phase space wave breaking, which is responsible for the irreversible emittance growth in these systems. The physics of both coasting and accelerating beams are examined in order to illuminate the most effective approaches to beam handling during the emittance compensation process as well as during subsequent beam transport. These results are discussed within the context of recent ultrahigh brightness RF photoinjector designs. (20 References). /home/httpd/docserver/releases/20080613005430/public/paper/file/23/anderson_2000_0146.pdf anderson_2000_0146.pdf 1 23 Electron acceleratorsPlasma densityPlasma devicesPlasma simulationPlasma wavesPlasma-beam interactionsWakefield acceleratorsLinear accelerators [A2915D], Particle beam interactions in plasma [A5240M], Plasma temperature and density [A5225L], Waves, oscillations, and instabilities in plasma [A5235], Plasma simulation [A5265], Particle accelerators [B7410]plasma electron trapping, plasma electron acceleration, plasma wake field, density transition, plasma electron injection, acceleration phase, single short electron pulse, underdense plasma, sharp localized downward density transition, background plasma electrons, rapid wavelength increase, induced wake wave, two-dimensional particle-in-cell simulations, acceleration mechanisms,Accelerator RF systemsBeam handling techniquesParticle beam dynamicsParticle beam injectionParticle beam stabilitySpace chargeBeams in particle accelerators [A2921], Preacceleration,injection) [A2910], Particle beam handling and diagnostics [B7410B]nonequilibrium transverse motion, emittance growth, ultrarelativistic space-charge dominated beams, transverse dynamics, emittance oscillations, nonlinear space-charge fields, phase space wave breaking, beam handling, emittance compensation, beam transport, ultrahigh brightness RF photoinjector English Journal Paper APS, USA. 0 2000 Physical Review Special Topics-Accelerators & Beams 146 2007-10-08T21:21:37-07:00 094201 2000