Title of article
Cooling of particle beams: Intrabeam scattering, envelope instability and shear
Author/Authors
Q. and Seurer، نويسنده , , M and Toepffer، نويسنده , , V and Variale، نويسنده , , V and Pisent، نويسنده , , A and Tecchio، نويسنده , , L and Burov، نويسنده , , A، نويسنده ,
Pages
6
From page
275
To page
280
Abstract
We investigate the dynamics of strongly coupled beams upon cooling, using molecular dynamics (MD) computer simulations. In the quest for crystalline beams in storage rings one has to overcome shear forces in the bending magnets as well as emittance growth due to envelope instabilities and intrabeam scattering (IBS). We show that for zero-current phase-advances σ0<90° even one-dimensional longitudinal cooling is effective, as the beam is stable and the transversal degrees of freedom are cooled indirectly through IBS. The case σ0>90° requires very high three-dimensional cooling rates in order to overcome envelope instabilities. The influence of the bending angle on the cooling process is investigated with two independent simulation codes, whose results agree very well.
Keywords
Emittance growth , Intrabeam scattering , Beam crystallization , Beam Dynamics , instabilities
Journal title
Astroparticle Physics
Record number
2002427
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