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The SPARC linear accelerator based terahertz source
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10.1063/1.4794014
/content/aip/journal/apl/102/9/10.1063/1.4794014
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/9/10.1063/1.4794014
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic layout of the SPARC test facility.

Image of FIG. 2.
FIG. 2.

(a) RMS bunch length (black squares) measured as function of the bunch charge. The red dashed line is the fit function , with B = 0.243 (0.010). (b) CTR energy as function of the charge (data, blue circles and calculation, black stars). The fit (red dashed curve) of experimental data provides a power law of , with b = 1.44(0.33). Two more data points, olive crossed diamond (500 fs and 470 pC) and purple triangle (260 fs and 260 pC), highlight the effect of sub-ps bunches on CTR energy.

Image of FIG. 3.
FIG. 3.

(a) Longitudinal bunch profile measured with the RFD in case of a 260 fs RMS bunch duration with 260 pC charge. (b) Corresponding measured CTR pulse energy density in J/THz as function of frequency (red squares). Dashed blue and solid olive curves correspond to the CTR pulse energy density calculated from the ideal GF formula and the generalized one, respectively, taking into account the measured form factor.

Image of FIG. 4.
FIG. 4.

(a) CTR autocorrelation function as measured through a Martin-Puplett interferometer. (b) Bunch form factor and, (c) the retrieved longitudinal bunch profile, providing a RMS bunch length of 1.4(0.10) ps.

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/content/aip/journal/apl/102/9/10.1063/1.4794014
2013-03-04
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The SPARC linear accelerator based terahertz source
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/9/10.1063/1.4794014
10.1063/1.4794014
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