title: Measurements of emittance and absolute spectral flux of the PETRA undulator at DESY Hamburg.
abstract: The first synchrotron radiation beamline using a 4 m-long undulator at the 12 GeV storage ring PETRA delivers hard X-ray photons usable up to 300 keV. The photon intensity is measured on an absolute scale in the energy range between 16 and 60 keV and compared with calculated intensities. The experimental set-up described is also used to measure the horizontal and vertical emittance of the source.
authors.affiliation: Hamburger Synchrotronstrahlungslabor HAS YLAB at Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, Hamburg D-22607, Germany.
authors.forename: U
authors.initials: U
authors.lastname: Hahn
authors.forename: H
authors.initials: H
authors.lastname: Schulte-Schrepping
authors.forename: K
authors.initials: K
authors.lastname: Balewski
authors.forename: J R
authors.initials: JR
authors.lastname: Schneider
authors.forename: P
authors.initials: P
authors.lastname: Ilinski
authors.forename: B
authors.initials: B
authors.lastname: Lai
authors.forename: W
authors.initials: W
authors.lastname: Yun
authors.forename: D
authors.initials: D
authors.lastname: Legnini
authors.forename: E
authors.initials: E
authors.lastname: Gluskin