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

Volume

3

fYear

1999

fDate

1999

Firstpage

2172

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1999. Proceedings of the 1999

Conference_Location

New York, NY

Print_ISBN

0-7803-5573-3

Type

conf

DOI

10.1109/PAC.1999.794410

Filename

794410