First polarization calculations in MAD

Author

Grote, Hans

Author_Institution

CERN, Geneva, Switzerland

fYear

1991

fDate

6-9 May 1991

Firstpage

324

Abstract

A module has been added to the MAD (Methodical Accelerator Design) program allowing the calculation of polarization levels in electron and positron storage rings. It is based on the program SITF developed at DESY (Deutsches Elektronen-Synchrotron). Its availability inside MAD offers the advantage of allowing it to use machine descriptions in the MAD format, and to change single elements interactively, thus showing immediately the impact on the polarization level. Calculations are performed for thick elements, with alignment and field errors, and the depolarizing effects caused by quantum diffusion in energy and by quantum excitation of vertical motion are treated. The calculations are based on linear spin-orbit coupling, and use a first-order perturbative approach.<>

Keywords

electron accelerators; physics computing; storage rings; MAD; Methodical Accelerator Design; depolarizing effects; electron storage rings; first-order perturbative approach; linear spin-orbit coupling; machine descriptions; polarization calculations; positron storage rings; quantum diffusion; quantum excitation; Data structures; Ear; Electrons; Linear accelerators; Orbital calculations; Particle beams; Particle tracking; Polarization; Positrons; Proton accelerators;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/PAC.1991.164289

Filename

164289