Report/Internal Report

PUBDB-2016-02651

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Measurement of Slow Closed-Orbit Motion in the HERA Electron Ring in Correlation with Ground Motion

Decking, W. (Corresponding author)DESY* ; Flottmann, K.DESY* ; Rossbach, J.Extern*

1990

Report No.: DESY M90-05-I

Abstract: The closed-orbit motion of the HERA electron ring has been recorded with high precision for periods of up to 80 seconds. Simultaneously, ground motion in the HERA tunnel has been detected. Numerical correlation analysis is discussed. Results are in agreement with numerical and analytical model calculations and suggest the conclusion that the closed-orbit motion in 1 . . . 100 Hz regime is dominated by mechanical motion of quadrupole magnets.

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Contributing Institute(s):

1. Bereichsleitung Beschleuniger / Bereich Beschleuniger (M)
2. Koordination des XFEL-Beschleunigers (MXL)
3. Beschleunigerphysik (MPY)
4. Uni Hamburg / Experimentalphysik (UNI/EXP)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. No specific instrument

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