Repetitively pulsed plasma illumination source improvements

1999 ◽  
Author(s):  
Robert G. Root ◽  
Paul Falkos
Keyword(s):  
Pulsed Plasma ◽  
Illumination Source

The erosion of materials exposed to a laser-pulsed-plasma (LPP) extreme ultraviolet (EUV) illumination source

2004 ◽  
Author(s):  
Richard J. Anderson ◽  
Dean A. Buchenauer ◽  
Leonard E. Klebanoff ◽  
Obert R. Wood II ◽  
Nora V. Edwards
Keyword(s):  
Extreme Ultraviolet ◽  
Pulsed Plasma ◽  
Illumination Source

scholarly journals Obtaining Silicon Oxide Nanoparticles Doped with Fluorine and Gold Particles by the Pulsed Plasma-Chemical Method

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Galina Kholodnaya ◽  
Roman Sazonov ◽  
Denis Ponomarev ◽  
Igor Zhirkov
Keyword(s):  
Chemical Synthesis ◽  
Silicon Oxide ◽  
Fine Particles ◽  
Chemical Reactor ◽  
Beam Diameter ◽  
Pulsed Plasma ◽  
Plasma Chemical ◽  
Plasma Chemical Synthesis ◽  
Transmission Electron ◽  
Average Size

This paper presents a study on pulsed plasma-chemical synthesis of fluorine- and gold-doped silicon oxide nanopowder. The gold- and fluorine-containing precursors were gold chloride (AuCl3) and sulphur hexafluoride (SF6). Pulsed plasma-chemical synthesis is realized on the laboratory stand, including a plasma-chemical reactor and TEA-500 electron accelerator. The parameters of the electron beam are as follows: 400–450 keV electron energy, 60 ns half-amplitude pulse duration, up to 200 J pulse energy, and 5 cm beam diameter. We confirmed the composite structure of SixOy@Au by using transmission electron microscopy and energy-dispersive spectroscopy. We determined the chemical composition and morphology of synthesized SixOy@Au and SixOy@F nanocomposites. The material contained a SixOy@Au carrier with an average size of 50–150 nm and a shell of fine particles with an average size of 5–10 nm.

Subsurface imaging for panel paintings inspection: A comparative study of the ultraviolet, the visible, the infrared and the terahertz spectra

2015 ◽  
Vol 23 (1) ◽  
Author(s):  
A. Bendada ◽  
S. Sfarra ◽  
C. Ibarra−Castanedo ◽  
M. Akhloufi ◽  
J.−P. Caumes ◽  
...  
Keyword(s):  
Subsurface Imaging ◽  
Wide Spread ◽  
Ir Thermography ◽  
Complementary Information ◽  
Ir Sensors ◽  
The World ◽  
Panel Paintings ◽  
Temperature Maps ◽  
Illumination Source ◽  
Ir Reflectography

AbstractInfrared (IR) reflectography has been used for many years for the detection of underdrawings on panel paintings. Advances in the fields of IR sensors and optics have impelled the wide spread use of IR reflectography by several recognized Art Museums and specialized laboratories around the World. The transparency or opacity of a painting is the result of a complex combination of the optical properties of the painting pigments and the underdrawing material, as well as the type of illumination source and the sensor characteristics. For this reason, recent researches have been directed towards the study of multispectral approaches that could provide simultaneous and complementary information of an artwork. The present work relies on non−simultaneous multispectral inspection using a set of detectors covering from the ultraviolet to the terahertz spectra. It is observed that underdrawings contrast increases with wavelength up to 1700 nm and, then, gradually decreases. In addition, it is shown that IR thermography, i.e., temperature maps or thermograms, could be used simultaneously as an alternative technique for the detection of underdrawings besides the detection of subsurface defects.

scholarly journals Characterization of functionalized coatings prepared from pulsed plasma polymerization

2021 ◽  
pp. 124621
Author(s):  
Marisol Ji ◽  
Andrea Jagodar ◽  
Eva Kovacevic ◽  
Lazhar Benyahia ◽  
Fabienne Poncin-Epaillard
Keyword(s):  
Plasma Polymerization ◽  
Pulsed Plasma ◽  
Pulsed Plasma Polymerization ◽  
Functionalized Coatings

Non-thermal pulsed plasma activated water: environmentally friendly way for efficient surface modification of semiconductor nanoparticles

2021 ◽  
Author(s):  
Pavel Galář ◽  
Josef Khun ◽  
Anna Fučíková ◽  
Kateřina Dohnalová ◽  
Tomáš Popelář ◽  
...  
Keyword(s):  
Surface Modification ◽  
Free Surface ◽  
Thermal Plasma ◽  
Environmentally Friendly ◽  
Semiconductor Nanoparticles ◽  
Reactive Species ◽  
Pulsed Plasma ◽  
Non Thermal Plasma ◽  
Plasma Activated Water

Non-thermal plasma activated water can be used for cheap, easy and chemicals-free surface modification of nanoparticles, with all the reactive species originating solely in air and water.

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