TY - GEN
T1 - A Cherenkov radiator for FEL-synchronized VUV-pulses at a linac-based FEL
AU - Goloviznin, V.V.
AU - Oepts, W.
AU - Wiel, van der, M.J.
PY - 1997
Y1 - 1997
N2 - A possible way to carry out two-color IR + VUV pump-probe experiments at linac-based FELs is proposed. The idea is to supply an FEL facility with a gas cell filled with helium or hydrogen, so that the electron beam, upon passage through the undulator, could be used to generate ultraviolet Cherenkov radiation. Such a Cherenkov radiator is shown to provide a reasonably high spectral-angular density of photons in a wide range of wavelengths from visible (300–400 nm) down to the VUV (65–70 nm). When averaged over a macropulse, the intensity of such a source exceeds that of synchrotron radiation from a wiggler in a modern storage ring. The spatial quality of the source is inferior to that of synchrotron radiation, but the synchronization to the infrared FEL pulses, which is crucial for most applications, is obviously perfect.
AB - A possible way to carry out two-color IR + VUV pump-probe experiments at linac-based FELs is proposed. The idea is to supply an FEL facility with a gas cell filled with helium or hydrogen, so that the electron beam, upon passage through the undulator, could be used to generate ultraviolet Cherenkov radiation. Such a Cherenkov radiator is shown to provide a reasonably high spectral-angular density of photons in a wide range of wavelengths from visible (300–400 nm) down to the VUV (65–70 nm). When averaged over a macropulse, the intensity of such a source exceeds that of synchrotron radiation from a wiggler in a modern storage ring. The spatial quality of the source is inferior to that of synchrotron radiation, but the synchronization to the infrared FEL pulses, which is crucial for most applications, is obviously perfect.
U2 - 10.1016/S0168-9002(97)00555-X
DO - 10.1016/S0168-9002(97)00555-X
M3 - Conference contribution
T3 - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SP - 510
EP - 513
BT - Proceedings of the 18th International Free Electron Laser Conference, 26-31 August 1996, Rome, Italy
T2 - conference; 18th Intern. Free Electron Laser Conf.; 1996-08-26; 1996-08-31
Y2 - 26 August 1996 through 31 August 1996
ER -