Characterization of X-ray emission from laser generated plasma

X-ray emission from laser generated plasma was studied at low (10 10 W/cm 2 ) and high (10 18 W/cm 2 ) intensity using ns and fs laser, respectively. Plasma characteristics were controlled trough the laser parameters, the irradiation conditions and the target properties. The X-ray spectra were acqui...

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Bibliographic Details
Published in:EPJ Web of Conferences 2018-01, Vol.167, p.3004
Main Authors: Cannavò, Antonino, Torrisi, Lorenzo, Ceccio, Giovanni, Cutroneo, Mariapompea, Calcagno, Lucia, Sciuto, Antonella, Mazzillo, Massimo
Format: Article
Language:English
Subjects:
Active regions (lasers)
Atomic properties
Diodes
Emission analysis
Laser plasmas
Lasers
Particle acceleration
Plasma
Plasma temperature
X ray spectra
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Summary:X-ray emission from laser generated plasma was studied at low (10 10 W/cm 2 ) and high (10 18 W/cm 2 ) intensity using ns and fs laser, respectively. Plasma characteristics were controlled trough the laser parameters, the irradiation conditions and the target properties. The X-ray spectra were acquired using fast detection technique based on SiC diodes with different active regions. The X-ray yield increases with the atomic number of the target, both at low and high intensity, and a similar empirical law has been obtained. The X-ray emission mechanisms from plasma are correlated to the plasma temperature and density and to the Coulomb charge particle acceleration, due to the charge separation effects produced in the non-equilibrium plasma. Functional dependences, theoretical approaches and interpretation of possible mechanism will be presented and discussed.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201816703004