Development of Polarized Photocathodes for the Linear Collider

Technical Report · Tue Dec 22 04:00:00 EST 2009

DOI:https://doi.org/10.2172/969331· OSTI ID:969331

Prepost, Richard ^[1]

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1. University of Wisconsin

In prior years a Wisconsin-SLAC collaboration developed polarized photocathodes which were used for the SLAC SLD and fixed target programs. Currently, the R&D program goal is the development of a polarized electron source (PES) which meets the ILC requirements for polarization, charge, lifetime, and pulse structure. There are two parts to this program. One part is the continued improvement of photocathode structures with higher polarization. The second part is the design and development of the laser system used to drive the photocathode. The long pulse train for the ILC introduces new challenges for the PES. More reliable and stable operation of the PES may be achievable if appropriate R&D is carried out for higher voltage operation and for a simpler photocathode load-lock system. The collaboration with SLAC is through the Polarized Photocathode Research Collaboration (PPRC). Senior SLAC personnel include T. Maruyama, J. Clendenin, R. Kirby, and A. Brachmann.

• Research Organization: University of Wisconsin
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: FG02-04ER41351
• OSTI ID: 969331
• Report Number(s): DOE/FE/41351-1 Final Report
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
DESIGN
ELECTRON SOURCES
LASERS
LIFETIME
LINEAR COLLIDERS
PERSONNEL
PHOTOCATHODES
POLARIZATION
STANFORD LINEAR ACCELERATOR CENTER
TARGETS