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Determination of X-ray pulse duration via intensity correlation measurements of X-ray fluorescence
- Source :
- Journal of synchrotron radiation. 26(Pt 6)
- Publication Year :
- 2019
-
Abstract
- A simple method using X-ray fluorescence is proposed to diagnose the duration of an X-ray free-electron laser (XFEL) pulse. This work shows that the degree of intensity correlation of the X-ray fluorescence generated by irradiating an XFEL pulse on metal foil reflects the magnitude relation between the XFEL duration and the coherence time of the fluorescence. Through intensity correlation measurements of copper Kα fluorescence, the duration of 12 keV XFEL pulses from SACLA was evaluated to be ∼10 fs.
- Subjects :
- Nuclear and High Energy Physics
Coherence time
Radiation
Materials science
010308 nuclear & particles physics
business.industry
Pulse (signal processing)
X-ray fluorescence
Pulse duration
Laser
01 natural sciences
Fluorescence
law.invention
Intensity (physics)
SACLA
Optics
law
0103 physical sciences
010306 general physics
business
Instrumentation
Subjects
Details
- ISSN :
- 16005775
- Volume :
- 26
- Issue :
- Pt 6
- Database :
- OpenAIRE
- Journal :
- Journal of synchrotron radiation
- Accession number :
- edsair.doi.dedup.....6e79d368bdb7918e8fbfadcc85eb7a3e