188
Development of a Tunable
Dielectric Loaded Accelerating Structure--Euclid TechLabs,
LLC, 5900 Harper Rd. #102, Solon, OH
44139; www.euclidtechlabs.com
Dr. Alex Kanareykin,
Principal Investigator, alexkan@euclidtechlabs.com
Mr. David Dunay, Business
Official, daved@euclidtechlabs.com
DOE Grant No. DE-FG02-07ER84822
Amount: $99,772
Dielectric
structures driven by wakefields or external radio
frequency (RF) are presently being considered as a promising technique for next
generation linear colliders. This project will develop dielectric-loaded wakefield accelerating
structures that can be adjusted in frequency using a bias electric field. This technique can be used to compensate for nonuniformities in dielectric structures, which are
intrinsic to the manufacturing process and limit the utility of these devices. The method will be inexpensive and easy to
implement without affecting beam quality.
The tuning will be accomplished by incorporating a thin film layer of ferroelectric material.
The nonlinear change in the permittivity of
the ferroelectric material under an applied DC
electric field will be used to vary the frequencies of the cavity modes in the
structure. In Phase I, the ferroelectric material to be used as an additional layer in
the accelerating structures will be improved, and the required loss factor will
be achieved. A thin, cylindrical ferroelectric layer for a prototype, tunable,
dielectric-loaded accelerator (DLA) structure will be developed and bench
tested. In Phase II, the tunable DLA
structure will be beam- and high-power tested.
Commercial
Applications and other Benefits as described by the awardee: In addition
to the application for efficient cost effective future electron
accelerators, the technology should be directly applicable to the
communications industry with respect to microwave power sources and switches,
passive microwave resonators, filters, and phase-shifters.