TY  - JOUR
AU  - Genthe, Erik
AU  - Czwalinna, Marie Kristin
AU  - Lautenschlager, Bjoern
AU  - Schlarb, Holger
AU  - Hadziioannou, Celine
AU  - Gerberding, Oliver
AU  - Isleif, Katharina-Sophie
TI  - Seismic Noise Contributions to EuXFEL Bunch Arrival Time Jitter from Ocean-Generated Microseism
JO  - High power laser science and engineering
VL  - 13
SN  - 2095-4719
CY  - Cambridge
PB  - Cambridge Univ. Press
M1  - PUBDB-2024-05851
SP  - e52
PY  - 2025
N1  - Title has changed to: Seismic Noise Contributions to EuXFEL Bunch Arrival Time Jitter from Ocean-Generated Microseism
AB  - Measurements of the bunch arrival times at the European XFEL show noise contributions in the spectral rangebetween 0.05 Hz and 0.5 Hz with peak-to-peak jitter of up to 25 fs. Correlation with Distributed Acoustic Sensing(DAS) measurements confirms the seismic origin. The seismic noise in this frequency band is known to be ocean-generated microseism. Both primary and secondary ocean-generated microseism were identified using seismometersand a numerical ocean wave model. Whereas secondary microseism has a strong impact on the bunch arrival time,primary microseism has no notable effect. Rayleigh waves cause the effect, while Love waves have minimal impact.In the presented cases, the noise originates from the North Atlantic and/or the North Sea. The amplitude of the noisedepends on the local weather conditions and is much stronger in winter. Ocean-generated microseism is a significantbottleneck that must be addressed to achieve femtosecond bunch arrival time stability in the sub-Hz regime
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1017/hpl.2025.40
UR  - https://bib-pubdb1.desy.de/record/614384
ER  -