Exploration of Long-Life Polarized Electron Sources

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$99,964.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
DE-FG02-04ER83883
Award Id:
69197
Agency Tracking Number:
75592S04-I
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Advanced Energy Systems, Inc. (Currently Advanced Energy Systems, Inc)
27 Industrial Boulevard, Unit E, Medford, NY, 11763
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Hans Bluem
Dr.
(609) 514-0315
hans_bluem@mail.aesys.net
Business Contact:
Anthony Favale
Mr.
(631) 345-6264
tony_favale@mail.aesys.net
Research Institution:
n/a
Abstract
75592-A radio frequency (RF) photoemission source that delivers polarized electrons at low emittance would be an attractive electron source for a linear collider. Moreover, if such a source were used in conjunction with nearby injection system optics, a beam with a high ratio of transverse emittances could be delivered, thereby simplifying the linear collider¿s damping system. However, present electron source technology has not developed sufficiently to assure that such a source is feasible. This project will fabricate a long-life, low emittance photocathode source for producing polarized electrons. The development of this source will require a substantial improvement in the vacuum inside an RF source, or in a booster in close proximity to a DC source, as well as an understanding and reduction of the effects of ion back bombardment. Phase I will study three configurations for beam dynamics and ion back bombardment and choose a configuration and operating temperature, so that the source for polarized electrons can be designed and fabricated in Phase II. Commercial Applications and Other Benefits as described by the awardee: All linear collider designs should benefit from long-life, low-emittance polarized sources, which would significantly ease the requirements on the damping rings. As an additional benefit, sources with a solenoid field on the cathode followed by a flat beam transformer could provide large aspect ratio beam emittance.

* information listed above is at the time of submission.

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