X-ray photon diagnostics at the European XFEL.
J Synchrotron Radiat
; 26(Pt 5): 1422-1431, 2019 Sep 01.
Article
em En
| MEDLINE
| ID: mdl-31490130
The European X-ray Free-Electron Laser (European XFEL) (Altarelli et al., 2006; Tschentscher et al., 2017), the world's largest and brightest X-ray free-electron laser (Saldin et al., 1999; Pellegrini et al., 2016), went into operation in 2017. This article describes the as-built realization of photon diagnostics for this facility, the diagnostics commissioning and their application for commissioning of the facility, and results from the first year of operation, focusing on the SASE1 beamline, which was the first to be commissioned. The commissioning consisted of pre-beam checkout, first light from the bending magnets, X-rays from single undulator segments, SASE tuning with many undulator segments, first lasing, optics alignment for FEL beam transport through the tunnel up to the experiment hutches, and finally beam delivery to first users. The beam properties assessed by photon diagnostics throughout these phases included per-pulse intensity, beam position, shape, lateral dimensions and spectral properties. During this time period, the machine provided users with up to 14â
keV photon energy, 1.5â
mJ pulse energy, 300 FEL pulses per train and 4.5â
MHz intra-bunch train repetition rate at a 10â
Hz train repetition rate. Finally, an outlook is given into the diagnostic prospects for the future.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Aceleradores de Partículas
/
Monitoramento de Radiação
/
Lasers
Tipo de estudo:
Diagnostic_studies
País/Região como assunto:
Europa
Idioma:
En
Revista:
J Synchrotron Radiat
Assunto da revista:
RADIOLOGIA
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Alemanha
País de publicação:
Estados Unidos