A high-order moment simulation model

Author

Tsang, K.T. ; Kostas, C. ; Mondelli, A.

Author_Institution

Sci. Applications Int. Corp., McLean, VA, USA

fYear

1993

fDate

17-20 May 1993

Firstpage

3270

Abstract

The physical length of accelerator systems presents computational difficulties for three-dimensional discrete-particle simulations of the dynamics and emittance growth in beam transport. An alternative to the discrete-particle approach is a high-order moment equation model, which is an extension of envelope equations formulated first by Kapchinskij and Vladimirskij (1959) and later adapted by Lee, Close and Smith (1987). Chernin (1988) has derived a beam envelope equation from the equations of motion for a mono-energetic particle beam in a magnetic field that is linear in the transverse coordinates. In this work we are interested in beams with a spread in energy, and transport systems with a nonlinear transverse dependence of the magnetic field

Keywords

beam handling techniques; particle beam diagnostics; 3D discrete-particle simulations; accelerator physical length; beam envelope equation; beam transport dynamics; beam transport emittance growth; envelope equations; equations of motion; high-order moment simulation model; monoenergetic particle beam; nonlinear transverse magnetic field dependence; Computational modeling; Coordinate measuring machines; Differential equations; Extraterrestrial measurements; Magnetic fields; Partial differential equations; Particle accelerators; Particle beams; Physics computing; Tensile stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1993., Proceedings of the 1993

Conference_Location

Washington, DC

Print_ISBN

0-7803-1203-1

Type

conf

DOI

10.1109/PAC.1993.309622

Filename

309622