  One challenge on the path to delivering FLASH-compatible beams with a
synchrotron is facilitating an accurate dose-control for the required
ultra-high dose rates. We propose the use of pulsed RFKO extraction instead of
continuous beam delivery as a way to control the dose delivered per Voxel. In a
first feasibility test dose rates in pulses of up to 600 Gy/s were observed,
while the granularity at which the dose was delivered is expected to be well
below 0.5 Gy.
