DOCUMENT METADATA
SLAC Publication: SLAC-PUB-17013
SLAC Release Date: August 9, 2017
METHOD OF CREATING LARGE APERTURE, SMALL PERIOD RF UNDULATORS USING POWER EXTRACTED FROM MULTIBUNCH BEAMS
Dolgashev, Valery.
A method of creating millimeter and sub-millimeter period rf undulators with apertures in
the order of a centimeter is described. This method opens possibilities that are impossible
to reach with state-of-art static field undulators. The undulator could be used to create
spontaneous or coherent synchrotron radiation in multibunch accelerators and storage
rings, including energy recovery linacs or multibunch (even 2 bunch) linear accelerators.
First, rf energy is extracted from the accelerators b... Show Full Abstract
A method of creating millimeter and sub-millimeter period rf undulators with apertures in
the order of a centimeter is described. This method opens possibilities that are impossible
to reach with state-of-art static field undulators. The undulator could be used to create
spontaneous or coherent synchrotron radiation in multibunch accelerators and storage
rings, including energy recovery linacs or multibunch (even 2 bunch) linear accelerators.
First, rf energy is extracted from the accelerators bunches, then the rf energy is used to
create deflecting field in the rf undulator. The undulator field is then interacts with
trailing bunches. This method could be used to create multi-stage devices, where rf power
generated in a previous stage rf undulator is used to produce deflecting field in the next
stage of the rf undulator, with frequency of generated rf increasing with each stage. RF
pulse compression schemes are expected to be used to increase efficiency of undulatorbunch
interaction. This scheme could be SLED (Z.D. Farkas, Brief History of SLED,
SLAC-TN-74-016, 1974) like or variants of resonant rings. Show Partial Abstract
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