Open AccessMeasurements of Emittance and Absolute Spectral Flux of the PETRA Undulator at DESY Hamburg
Author(s) -
Hahn U.,
SchulteSchrepping H.,
Balewski K.,
Schneider J. R.,
Ilinski P.,
Lai B.,
Yun W.,
Legnini D.,
Gluskin E.
Publication year - 1997
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049596010734
Subject(s) - desy , undulator , beamline , physics , storage ring , thermal emittance , synchrotron radiation , synchrotron , flux (metallurgy) , optics , photon , spectrometer , photon energy , advanced photon source , range (aeronautics) , nuclear physics , atomic physics , radiation , beam (structure) , materials science , metallurgy , composite material
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.