Tracking studies for the Oxford Instruments compact electron synchrotron

Abstract

Simulating electron trajectories (tracking) in a realistic compact ring introduces special problems because the magnetic bending radius can be as little as twenty times the horizontal displacement. Common simplifying approximations in tracking codes may not be appropriate. Results are presented from a thin lens tracking code which correctly handles the small bending radius virtual forces and real magnetic forces to octupole level. Nonsymplectic behavior is controlled by highly segmenting the Oxford superconducting dipoles. A qualitative comparison with experimental results is made.