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Wei, H.

Paper Title Page
THPE097 Charged-Particle Dynamics in an Adiabatic Thermal Beam Equilibrium 4749
 
  • H. Wei, C. Chen
    MIT/PSFC, Cambridge, Massachusetts
  
 

The dy­nam­ics of charged par­ti­cles in a re­cent­ly-dis­cov­ered adi­a­bat­ic ther­mal beam equi­lib­ri­um* are stud­ied. In par­tic­u­lar, test par­ti­cle mo­tion is an­a­lyzed nu­mer­i­cal­ly, as­sum­ing the beam equi­lib­ri­um fields are in a pe­ri­od­ic solenoidal fo­cus­ing chan­nel. Poincare sur­face-of-sec­tion maps are gen­er­at­ed to ex­am­ine the be­hav­ior of the test par­ti­cles in phase space such as non­lin­ear res­o­nances and chaot­ic re­gions. Com­par­isons are made be­tween the adi­a­bat­ic ther­mal and rigid-ro­tor Vlasov beam equi­lib­ria**.


* J. Zhou, K.R. Samokhvalova, and C. Chen, Phys. Plasmas 15, 023102 (2008)
** C. Chen, R. Pakter and R.C. Davidson, Phys. Rev. Lett. 79, 225 (1997)