Laser-produced plasmas as unique x-ray souces for industry and astrophysics

Fujioka, Shinsuke; Nishimura, Hiroaki; Takabe, H.; Yamamoto, Norimasa; Nishihara, Katsunobu; Salzmann, David; Norimatsu, T.; Miyanaga, Noriaki; Mima, K.; Azechi, H.; Sunahara, A.; Shimada, Yusuke; Izawa, Yasukazu; Nagai, Keiji; Wang, F.; Zhong, Jiayong; Zhao, Geng; Li, Y.; Dong, Quan; Wang, Shiwei; Zhang, Y.; Zhang, Ji Ping; Rhee, Yun-Hee; Lee, Y. W.; Kwon, D. H.

doi:10.1088/1742-6596/244/1/012001

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…The use of transmission diffraction gratings is also worth mentioning. In papers [79,80] dealing with the laboratory investigation of photoionized plasma generated in a high-power laser facility GEKKO-XII, a spectrometer with a transmission grating was used to measure the absolute intensities of the plasma emission in the range of 1-6 keV. This diagnostic helped to control and measure the Planck spectrum of the central plasma.…”

Section: Diffraction Gratingsmentioning

confidence: 99%

X-ray Self-Emission Imaging of Hydrodynamic Laser-Induced Astrophysical Phenomena

et al. 2022

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In this article, we present an overview of the application of X-ray self-emission methods for the imaging of hydrodynamic astrophysical phenomena in laboratory-scale experiments. Typical diagnostic approaches, their advantages, drawbacks, and application perspectives are considered. We show that X-ray imaging and spectroscopy methods with 2D and even 1D spatial resolution are valuable for numerous laboratory astrophysical problems. Furthermore, the methods revealed the hydrodynamic evolution, the spatial shape and structure, and spatial features of important parameters such as electron density and plasma temperature of astrophysical objects and related phenomena, which are also required for the verification of astrophysical models.

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Section: Diffraction Gratingsmentioning

confidence: 99%

X-ray Self-Emission Imaging of Hydrodynamic Laser-Induced Astrophysical Phenomena

et al. 2022

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“…Due to the rapid advancement in laser technology, the laser-induced plasma has become an efficient source of X-rays for laboratory applications (8,9).…”

Section: Introductionmentioning

confidence: 99%

Surface modification of platinum by laser-produced X-rays

Latif

Rafique

Khaleeq-ur-Rahaman

et al. 2014

Radiation Effects and Defects in Solids

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Laser-induced plasma is used as an X-ray source for the growth of hillocks like nanostructures on platinum surface. To generate X-rays, plasma is produced by Nd:YAG laser, which is operated at second harmonics (λ = 532 nm, E = 400 mJ). Analytical grade 5 N pure Al, Cu and W are used as laser targets for X-rays production. X-rays produced from Al, Cu and W plasmas are used to irradiate three analytical grade (5 N pure) platinum substrates, respectively, under the vacuum ∼ 10 −4 torr. XRD analysis shows considerable structural changes in the exposed platinum. The decrement in reflection intensities, increment in dislocation line density, change in d-spacing and disturbance in the periodicity of planes evidently prove these structural changes. Atomic force microscope AFM topographic analysis of the platinum exposed to X-rays emitted from Al, Cu and W targets showed that nanometer-size hillocks are produced on the platinum surface irrespective of the source. It has also been observed that due to these hillocks, the roughness of the surface has increased. Conductivity of hillocks produced from X-rays produced by Al, Cu and W targets is compared and it is shown that the hillocks produced by Al target X-rays have better conductivity compared to the hillocks produced by X-rays from Cu and W targets.

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Spectral selective radio frequency emissions from laser induced breakdown of target materials

Kumar

Manikanta

Leela

et al. 2014

Applied Physics Letters

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The radio frequency emissions scanned over broad spectral range (30 MHz–1 GHz) from single shot nanosecond (7 ns) and picosecond (30 ps) laser induced breakdown (LIB) of different target materials (atmospheric air, aluminum, and copper) are presented. The dominant emissions from ns-LIB, compared to those from the ps-LIB, indicate the presence and importance of atomic and molecular clusters in the plasma. The dynamics of laser pulse-matter interaction and the properties of the target materials were found to play an important role in determining the plasma parameters which subsequently determine the emissions. Thus, with a particular laser and target material, the emissions were observed to be spectral selective. The radiation detection capability was observed to be relatively higher, when the polarization of the input laser and the antenna is same.

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Laser-produced plasmas as unique x-ray souces for industry and astrophysics

Cited by 4 publications

References 11 publications

X-ray Self-Emission Imaging of Hydrodynamic Laser-Induced Astrophysical Phenomena

X-ray Self-Emission Imaging of Hydrodynamic Laser-Induced Astrophysical Phenomena

Surface modification of platinum by laser-produced X-rays

Spectral selective radio frequency emissions from laser induced breakdown of target materials

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