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Dynamic aperture and transverse proton diffusion in HERA
AIP Conference Proceedings
The dynamic aperture caused by persistent-current nonlinear field errors is an important concern in the design of superconducting hadron storage rings. The HERA proton ring is the second superconducting accelerator in operation. In this lecture note, its measured dynamic aperture is compared with that inferred from comprehensive tracking studies. To understand the difference between prediction and measurement, a semi-analytical method is developed for evaluating transverse diffusion rates duedoi:10.1063/1.47320 fatcat:bipvjqtvrncobm3romdmohbzey