Abstract:
This paper presents the current status of
the booster synchrotron for the Duke FEL
storage ring. The booster will provide full
energy injection into the storage ring in a
wide energy range from 0.27 to 1.2 GeV. When
operating the Duke FEL storage ring as the
High Intensity Gamma Source (HIGS) to produce
gamma photons above 20 MeV with Compton
scattering, continuous electron loss occurs.
The top-off mode operation of the booster
injector will enable the continuous operation
of the HIGS facility by replenishing the lost
electrons. The design requirement for a
compact booster with the single bunch
extraction capability remains a challenge for
the machine development. Presently, the
booster project is in the installation phase.
The magnetic elements, vacuum chambers,
injection and extraction kickers have been
fabricated in the Budker Institute of Nuclear
Physics, Russia. The diagnostic and control
system is being developed in the FEL lab,
Duke University. The commissioning of the
booster synchrotron is planned for fall 2005.