Fiscal Year	2011
Division	Graduate School of Engineering & Applied Science
Department	Physics
Investigator(s)	Lewellen, John W.
Sponsor	High Energy Laser Joint Technology Office (Joint)
Summary	This project will study the properties of advanced cathodes for high-average-current, high-brightness injectors. In particular, the quantum efficiency of dispenser photocathodes will be measured as a function of time and position on the cathode surface. Studies to determine the ability of the cathode to regenerate the quantum efficiency following damage is also of interest. Diamond pyramid field emission cathodes will also be investigated, for Ion-term operational performance, in particular emission uniformity and stability, as well as resistance to ion impact damage.
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Publications	Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal
Data	Publications, theses (not shown) and data repositories will be added to the portal record when information is available in FAIRS and brought back to the portal