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Open problems in beam dynamics with applications to synchrotron radiation

Open problems in beam dynamics with applications to synchrotron radiation

ANKA seminar room, building 348, 2nd floor


ESRF, France



Inviting person:

Anke-Susanne Mueller, IBPT


Boaz Nash 



I will review some topics in beam dynamics for electron storage rings where open questions remain, worthy of continuing research. In single particle dynamics, this includes the dynamic aperture problem of non-linear dynamics. Although computing clusters may be used to search the large parameter space to optimize dynamic aperture, basic questions of understanding remain.  I propose that we look beyond the usual normal form approach to find other perspectives. In the realm of collective effects, there are open problems in understanding the microwave instability and coherent synchrotron radiation along with transverse instabilities. Continued theoretical and experimental studies of these topics should be carried out with focus on which parameters most impact the resulting synchrotron radiation properties seen downstream at the sample of a beamline. For the radiation itself, there are still questions, particularly regarding partially coherent radiation. Finally, both for the electron beam and for the synchrotron radiation, basic theory must also be combined with well-designed software modeling tools. Along these lines, I will describe my own efforts at coordinating development of the Accelerator Toolbox tracking code, and some of the lessons learned.