X-ray emission from laser-produced plasmas

Giulietti, Danilo; Gizzi, L. A.

doi:10.1007/bf02874624

Cited by 156 publications

(115 citation statements)

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“…Such plasmas are remarkably different from conventional laboratory plasmas as they are formed rapidly and hydrodynamic expansion is insignificant during the laser pulse. They are 'point' (micron size) sources for both soft and hard x-ray [2,3,4] and gamma ray pulses [5,6]. This aspect has attracted multifaceted research to explore various applications like x-ray lithography and time resolved x-ray diffraction [1].…”

mentioning

confidence: 99%

Role of surface roughness in hard-x-ray emission from femtosecond-laser-produced copper plasmas

et al. 2002

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The hard x-ray emission in the energy range of 30 − 300 keV from copper plasmas produced by 100 fs, 806 nm laser pulses at intensities in the range of 10 15 -10 16 W cm −2 is investigated. We demonstrate that surface roughness of the targets overrides the role of polarization state in the coupling of light to the plasma. We further show that surface roughness has a significant role in enhancing the x-ray emission in the above mentioned energy range.

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confidence: 99%

Role of surface roughness in hard-x-ray emission from femtosecond-laser-produced copper plasmas

et al. 2002

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“…due to the presence of the hot spots) and contributes to reach the intensity threshold, while in the case of porous materials filamentation doesn't occur because of the homogenizing action of foams on laser irradiation inhomogeneities. In addition to intensity gradient, filamentation is facilitated also by the presence of high density gradients hence its absence can be related to the production of a plasma characterized by smoother variation in density [7].…”

Section: Density Profilementioning

confidence: 99%

Laser Irradiated Foam Targets: Absorption and Radiative Properties

Salvadori

Andreoli

Cipriani

et al. 2018

EPJ Web of Conferences

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Abstract. An experimental campaign to characterize the laser radiation absorption of foam targets and the subsequent emission of radiation from the produced plasma was carried out in the ABC facility of the ENEA Research Center in Frascati (Rome). Different targets have been used: plastic in solid or foam state and aluminum targets. The activated different diagnostics allowed to evaluate the plasma temperature, the density distribution, the fast particle spectrum and the yield of the X-Ray radiation emitted by the plasma for the different targets. These results confirm the foam homogenization action on laser-plasma interaction, mainly attributable to the volume absorption of the laser radiation propagating in such structured materials. These results were compared with simulation absorption models of the laser propagating into a foam target.

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“…Spherically bent crystal for X-ray imaging X-ray imaging is very important in order to study laser-produced plasmas [25]. One tool is at the same time rather simple and very powerful and has found a very large application in recent experiment.…”

Section: Diagnostics Of Laser-produced Plasmasmentioning

confidence: 99%