Modeling the dynamics of charged-particle beams using a Fokker-Planck approach

Conference · Sat Oct 01 00:00:00 EDT 1994

OSTI ID:10189205

Bohn, C L; Delayen, J R

At the previous Linac Conference, we introduced a semianalytic Fokker-Planck formalism for calculating the evolution of intense, nonrelativistic, mismatched beams propagating through focusing channels. We have since elaborated on its physical basis and greatly expanded its applicability. In this paper, we implement the model to study the dynamics of a circularly symmetric beam propagating through a linear focusing channel. An example is discussed for an ion beam and accelerator parameters which are representative of high-current spallation neutron sources in which space-charge forces are important. The example illustrates the dynamics of emittance growth and halo formation in the beam.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10189205
• Report Number(s): ANL/TD/CP-84288; CONF-9408125-37; ON: DE95001458; TRN: 94:020481
• Resource Relation: Conference: 17. international LINAC conference,Tsukuba (Japan),21-26 Aug 1994; Other Information: PBD: [1994]
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM DYNAMICS
FOKKER-PLANCK EQUATION
LINEAR ACCELERATORS
ION BEAMS
BEAM EMITTANCE
430200
BEAM DYNAMICS, FIELD CALCULATIONS, AND ION OPTICS