Injection, dynamic aperture, and beam instability of a small synchrotron radiation source in the hard-x-ray region

A small synchrotron radiation source in the hard-x-ray region was conceptually designed and its injection scheme, dynamic aperture, and beam instabilities were studied. Synchrotron radiation with the critical wavelength of 0.1 nm is emitted from a pair of superconducting bending magnets. The storage ring has only one pair of quadrupole magnets to save its drift space. The decay time of the kicker magnet and the angle between the central orbit and the orbit of the injected beam were optimized by computer simulation. The reduction of the dynamic aperture due to the errors of the bending field is less than 20%. Considerations of possible instabilities showed that there is no critical instability up to the beam current of 200 mA when the beam is injected with higher energy than 650 MeV