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Generation of first hard X-ray pulse at Tsinghua Thomson Scattering X-ray Source
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10.1063/1.4803671
/content/aip/journal/rsi/84/5/10.1063/1.4803671
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/5/10.1063/1.4803671

Figures

Image of FIG. 1.
FIG. 1.

Schematic of TTX.

Image of FIG. 2.
FIG. 2.

Photograph of the facility. The photocathode RF gun, solenoids, accelerating section, deflecting cavity, interaction chamber, triplets, waveguide system, and dipole are shown.

Image of FIG. 3.
FIG. 3.

Layout of the interaction region. The electron and laser beam size at the center of the chamber are measured using a screen and a CCD. Typical beam profiles are also shown.

Image of FIG. 4.
FIG. 4.

Typical X-ray signal from the MCP detector. The solid (red) line is the background signal with only the electron on. The dashed (blue) line is the X-ray signal when the laser and electron are aligned and simultaneously set to on.

Image of FIG. 5.
FIG. 5.

Experimentally measured MCP signals as a function of timing delay (black square) and Lorentzian fit with Δt = 60 ps.

Image of FIG. 6.
FIG. 6.

X-ray yield as a function of laser pulse energy. The electron charge is 200 pC.

Image of FIG. 7.
FIG. 7.

Histogram of the measured X-ray signal fluctuation.

Image of FIG. 8.
FIG. 8.

X-ray transverse distribution measured by the Andor EMCCD using a CsI scintillator over 100 s integration at 5 Hz. (a) False-color CCD image and (b) measured angular energy distribution in the - and -axes and the distribution predicted by simulation with CAIN.

Image of FIG. 9.
FIG. 9.

X-ray spectral measurement. (a) CCD image with 9 mm silicon wafers; (b) attenuation curves at points a, b, and c; (c) reconstructed X-ray spectrum at points a, b, and c (solid line), and compared with X-ray spectrum simulated using CAIN (dash line); and (d) measured and simulated results of the mean X-ray energy as a function of scattered angle. The energy is normalized with the mean energy at point a.

Image of FIG. 10.
FIG. 10.

Results from an absorption imaging test using the X-ray pulse at the TTX. (a) Picture of the object and (b) X-ray absorbed image.

Tables

Generic image for table
Table I.

Measured electron and laser parameters in the experiment.

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/content/aip/journal/rsi/84/5/10.1063/1.4803671
2013-05-08
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Generation of first hard X-ray pulse at Tsinghua Thomson Scattering X-ray Source
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/5/10.1063/1.4803671
10.1063/1.4803671
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