Computing for accelerator physics Ilya Agapov, 7/12/09, DESY ...

Linear optics
A typical parametrization – through so­called twiss parameters
A beam transport system (e.g. beam parameters) easily given by matrix multiplication.
Writing a program to SIMULATE linear beam optics is straightforward and can be
done in a matter of days (fortran) or hours (matlab, mathematica, python, root etc.).
Almost every computer­inclined accelerator specialist has probably done it.
Computer­aided design:
Too many free parameters. Still designed by humans from analytical principles
starting from simple building blocks (FODO cell; final doublet/triplet)
Only tuning (matching) of optics: find exact magnet settings to fit the beam size at IP
Further issues, e.g.:
Powering constraints
xs= s cos s
Cost issues (tunnel length minimization, required current minimization)
Attempts at multiobjective genetic optimization have been made