Title :
Bunch length measurements using a Martin Puplett interferometer at the TESLA Test Facility linac
Author :
Leissner, B. ; Berger, Ch ; Siedling, R. ; Tonutti, M. ; Geitz, M. ; Schmidt, G. ; Schmüser, P.
Author_Institution :
Tech. Hochschule Aachen, Germany
Abstract :
The longitudinal charge distribution of the electron bunches in the TESLA Test Facility linac has been determined using coherent transition radiation produced at a thin metal foil. The autocorrelation of the radiation pulse is measured with a Martin Puplett interferometer and then Fourier transformed to yield the coherent radiation spectrum and the bunch form factor. Several techniques, including a Kramers-Kronig analysis, have been applied to determine the longitudinal bunch charge distribution. Measurements with a thermionic electron gun and a RF photoinjector are presented. The influence of frequency-dependent acceptance corrections is discussed
Keywords :
X-ray apparatus; electromagnetic wave interferometers; electron accelerators; linear accelerators; particle beam bunching; particle beam diagnostics; Fourier transform; Kramers-Kronig analysis; Martin Puplett interferometer; RF photoinjector; TESLA Test Facility; bunch form factor; coherent transition radiation; electron bunch; frequency-dependent acceptance corrections; linac; longitudinal bunch charge distribution; longitudinal charge distribution; thermionic electron gun; Arm; Autocorrelation; Detectors; Electrons; Length measurement; Linear particle accelerator; Optical interferometry; Polarization; Pulse measurements; Testing;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.794410
