Exploration of Long-Life Polarized Electron Sources

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-04ER83883
Agency Tracking Number: 75592S04-I
Amount: $99,964.00
Phase: Phase I
Program: SBIR
Awards Year: 2004
Solicitation Year: 2004
Solicitation Topic Code: 5
Solicitation Number: DOE/SC-0075
Small Business Information
27 Industrial Boulevard, Unit E, Medford, NY, 11763
HUBZone Owned: Y
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Hans Bluem
 (609) 514-0315
Business Contact
 Anthony Favale
Title: Mr.
Phone: (631) 345-6264
Email: tony_favale@mail.aesys.net
Research Institution
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. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government