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Vector Diffraction Theory and Coherent Transition Radiation Interferometry in Electron Linacs.

DE2007917852

Publication Date	2006
Personal Author	Maxwell, T. J.; Bohn, C. L.; Mihalcea, D.; Piot, P.
Page Count	3
Abstract	Electrons impinging on a thin metallic foil produce small bursts of transition radiation (TR) as they cross the boundary from one medium to the next. A popular diagnostic application is found for compact electron bunches. In this case they will emit radiation more or less coherently with an enhancement of the intensity on wavelengths comparable to or larger than the bunch size, generating coherent transition radiation (CTR). Several detailed analytical descriptions have been proposed for describing the resulting spectral distribution, often making different simplifying assumptions. Given that bunches tenths of millimeters long can generate measurable spectra into the millimeter range, concern may arise as to weak diffraction effects produced by optical interference devices containing elements with dimensions in the centimeter range.
Keywords	Accelerators Transition radiation Interferometers Electrons Vectors Diffraction Beam bunching Optical equipment Wavelengths Dimensions
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Fermi National Accelerator Lab., Batavia, IL.; Northern Illinois Univ., De Kalb.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with Northern Illinois Univ., De Kalb. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200806

Vector Diffraction Theory and Coherent Transition Radiation Interferometry in Electron Linacs.

Vector Diffraction Theory and Coherent Transition Radiation Interferometry in Electron Linacs.
DE2007917852

Publication Date	2006
Personal Author	Maxwell, T. J.; Bohn, C. L.; Mihalcea, D.; Piot, P.
Page Count	3
Abstract	Electrons impinging on a thin metallic foil produce small bursts of transition radiation (TR) as they cross the boundary from one medium to the next. A popular diagnostic application is found for compact electron bunches. In this case they will emit radiation more or less coherently with an enhancement of the intensity on wavelengths comparable to or larger than the bunch size, generating coherent transition radiation (CTR). Several detailed analytical descriptions have been proposed for describing the resulting spectral distribution, often making different simplifying assumptions. Given that bunches tenths of millimeters long can generate measurable spectra into the millimeter range, concern may arise as to weak diffraction effects produced by optical interference devices containing elements with dimensions in the centimeter range.
Keywords	Accelerators Transition radiation Interferometers Electrons Vectors Diffraction Beam bunching Optical equipment Wavelengths Dimensions
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Fermi National Accelerator Lab., Batavia, IL.; Northern Illinois Univ., De Kalb.; Department of Energy, Washington, DC.
Supplemental Notes	Prepared in cooperation with Northern Illinois Univ., De Kalb. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200806