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Development of a Non-Axisymmetric Permanent Magnet Focusing System for Elliptic
Charged-Particle Beams--Beam Power Technology, Inc., 150 Lincoln Street,
Apt. 3C, Boston, MA 02111; 978-376-0143
Mr. Thomas Bemis, Principal
Investigator, tbemis@beampower.com
Mr. Michael Lawrence, Business
Official, mlawrence@beampower.com
DOE Grant No. DE-FG02-07ER84910
Amount: $100,000
A
high-brightness, elliptic, electron or positron beam is a novel device that has
wide applications in high energy accelerators.
Once developed, a large-aspectratio elliptic
electron beam would enable the development of L-band ribbon-beam klystrons (RBKs) or sheet-beam klystrons (SBKs),
which are more efficient than the multi-beam klystrons (MBKs)
for the International Linear Collider (ILC). Also, elliptic electron and positron sources
would be more suitable for beam injections, because sheetlike
electron and positron bunches are brought to collision in the interaction
section in the ILC. Finally,
high-brightness elliptic charged-particle beams can be naturally matched into
alternating gradient focusing systems, where the transverse section of the beam
is a pulsating ellipse. This project
will demonstrate a high-intensity elliptic beam system, including a thermionic elliptic electron gun for elliptic beam
generation, a periodic permanent magnet system for elliptic beam focusing, and
a depressed collector. The beam will be
characterized and compared to theoretical and simulation predictions.
Commercial
Applications and other Benefits as described by the awardee: In
addition to the high-energy accelerator applications, high-brightness elliptic
charged-particle (electron, muon, proton, antiproton,
and ion) beams should have wide applications in other accelerators for nuclear
physics research and high-energy density physics research