Fiscal Year	2015
Division	Graduate School of Engineering & Applied Science
Department	Physics
Investigator(s)	Cohn, Keith R. Blau, Joseph A.
Sponsor	High Energy Laser-Joint Technology Office (Joint)
Summary	Investigate beam source and collective effects and instabilities, such as coherent synchrotron radiation and beam halo formation, relevant to high-power accelerator operation via a combination of theoretical modeling, simulation and experimental investigation. Work on cathodes will include investigation of dispenser hotocathodes for uniformity of quantum efficiency and longevity. Novel beam formation techniques, such as the use of elliptical laser pulses to obtain beams with linear space charge forces, will be tested and refined in theory and experiment. Beam transport effects for low-voltage, high-charge, high-quality beams will be predicted and compared with experiment over the 1 - 10 MeV energy range, of high relevance to weapons-class infrared FEL designs.
Keywords
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