Title :
Diffusive transport enhancement by isolated resonances and distribution tails growth in hadronic beams
Author_Institution :
Fermilab, Batavia, IL, USA
Abstract :
The escape rates and evolution of a distribution of particles are considered for a 2-D model of transverse motion of particles in hadronic storage rings, when nonlinear resonances and external diffusion are present. Dynamic enhancement of diffusion inside separatrices can develop under a certain geometry of resonance oscillations and relatively wide resonances, leading to the fast growth of distribution tails and escape rates. The phenomenon is absent in 1-D.<>
Keywords :
particle beam diagnostics; proton accelerators; storage rings; 2-D model; diffusive transport enhancement; distribution tails growth; escape rates; external diffusion; hadronic beams; hadronic storage rings; isolated resonances; nonlinear resonances; resonance oscillations; separatrices; transverse motion; Damping; Diffusion processes; Geometry; Intensity modulation; Lattices; Probability distribution; Radio frequency; Resonance; Storage rings; Tides;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164742
