Marylie 3.0 - A Program for Nonlineapr Analysis of Accelerator and Beamline Lattices

Abstract

MARYLIE 3.0 is a Fortran-language beam transport and tracking code developed at the University of Maryland. It employs algorithms based on a Lie algebraic formalism for charged particle trajectory calculations/sup 1/, and is designed to compute transfer maps for and trace rays through single or multiple beam-line elements. This is done without the use of numerical integration or traditional matrix methods; all nonlinearities (including chromatic effects) through third (octupole) order are included. Thus MARYLIE 3.0 includes effects one order higher than those usually handled by existing matrix-based programs. In addition MARYLIE is exactly symplectic (Canonical) through all orders. The Lie algebraic treatment of higher order multipoles is under study. MARYLIE 4.0, a MARYLIE version that includes decapole effects, is currently being tested. All versions of MARYLIE have provisions for user written subroutines that permit the treatment of any multipole element by the usual approximations or numerical integration.