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A simple cross-correlation technique between infrared and hard x-ray pulses
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10.1063/1.3125256
/content/aip/journal/apl/94/17/10.1063/1.3125256
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/17/10.1063/1.3125256
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Fluorescence yield signal from x-ray absorption by neutral Kr atoms (upper trace) and ions (lower trace) as a function of x-ray energy. The energies corresponding to resonant excitations are indicated.

Image of FIG. 2.
FIG. 2.

Experimental setup.

Image of FIG. 3.
FIG. 3.

Cross-correlation data for hybrid fill (solid circles, 10 s/ch) and 24-bunch mode (open circles, 20 s/ch). A background from neutrals was subtracted. The solid curves are the cumulative integral of the respective x-ray pulse profiles from streak camera measurements.

Image of FIG. 4.
FIG. 4.

Root mean square (rms) x-ray bunch lengths extracted from cross-correlation measurements as a function of the electron bunch current. Diamonds, hybrid fill, 16/17 mA injected; the two points below 2 mA were taken after an extended period without top-up injections. Triangles, hybrid fill 8 mA. Circles, 24-bunch, 4 mA. Open squares, APS nominal x-ray bunch lengths. The dashed curve represents a cube root functional behavior.

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/content/aip/journal/apl/94/17/10.1063/1.3125256
2009-04-30
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A simple cross-correlation technique between infrared and hard x-ray pulses
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/17/10.1063/1.3125256
10.1063/1.3125256
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