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Demonstration of a low electromagnetic pulse laser-driven argon gas jet x-ray source
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10.1063/1.4734506
/content/aip/journal/apl/101/2/10.1063/1.4734506
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/2/10.1063/1.4734506
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Figures

Image of FIG. 1.
FIG. 1.

Experimental layout at the PHELIX laser for comparing the EMP from gas jet and solid laser targets of similar x-ray photon energy. (a) Experimental setup showing diagnostics and B-dot probe positions (*). (b) x-ray spectra and (c) electron spectra from solid foil and gas jet target shots with similar laser conditions. X-ray spectra are similar but electron spectra are very different.

Image of FIG. 2.
FIG. 2.

(a) Magnetic field strengths measured by the B-dot probe for 200 TW laser irradiation of Ar gas jet (blue line) and PVDC plastic solid foil targets (black line). Time t = 0 denotes when the high power laser arrives at the target. (b) Poynting flux exceeds the pre-event noise thresholds (dotted lines) for a brief burst 1.8 < t < 7.5 ns, with duration τ EMP = 5.7 ns (foil) and 2.0 ns (gas) measured to 90% of the (c) cumulative EMP energy calculated with Eq. (3).

Image of FIG. 3.
FIG. 3.

Illustration of the frequency domain. (a) Broadband power spectral density of the B-dot signals. (b) System response: probe transfer function T(f), filtering, cable attenuation. The shaded band indicates the bandwidth under study in this work, from about 400 MHz to 2.5 GHz.

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/content/aip/journal/apl/101/2/10.1063/1.4734506
2012-07-11
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Demonstration of a low electromagnetic pulse laser-driven argon gas jet x-ray source
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/2/10.1063/1.4734506
10.1063/1.4734506
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