Title :
First polarization calculations in MAD
Author_Institution :
CERN, Geneva, Switzerland
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;
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.1991.164289
