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A critical review of the developments in molecular dynamics simulations to study femtosecond laser ablation
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Recycling of silver from CIGS solar cells using laser ablation and debonding
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Cryogenic Laser Ablation Reveals Short-Circuit Mechanism in Lithium Metal Batteries
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Characterization of plasma and gas-phase chemistry during boron-nitride nanomaterial synthesis by laser-ablation of boron-rich targets
Formation of B 2 N molecules occurs when solid BN is utilized as feedstock for the synthesis of boron nitride nanomaterials.
Beam target neutron production using laser ablated deuterated polyethylene on a 1 MA, 100 ns z-pinch device
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Mapping Critical Mineral Distributions in Shales and Sandstones using Laser Ablation Inductively Couple Plasma Mass Spectrometry
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Laser Ablation Molecular Isotopic Spectrometry for Planetary Applications
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Investigating the Limits of Stainless-Steel Chemistry Specifications in Femtosecond Laser Ablation Modeling
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Investigation of magnetic field evolution in laser ablation Z-pinch experiments using Zeeman Induced Magnetic Splitting (ZIMS) spectroscopic technique
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Picosecond Laser Ablation and Ion Clusters for External Injection into the Extended EBIS
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Z-Pinch and Laser-Ablation-Driven High-Yield Neutron Source Project #: LO-005-20 Year 3 of 3
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Z-Pinch and Laser-Ablation-Driven High-Yield Neutron Source
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Z-Pinch and Laser-Ablation-Driven High-Yield Neutron Source
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A method of determining ablation depth from free surface velocities in laser induced ablation experiments
The generation of laser ablation depth data in the ultrafast (100ps) time regime is important for the validation of radiation hydrodynamic codes in that time regime. We present a technique using data from a velocimetry diagnostic to determine the hot electron penetration depth into a metal sample.
Features of ion generation by a picosecond laser in the range of 10 11 –10 13 W cm -2 power densities
Picosecond lasers (ps-lasers) have significant advantages for the generation of low charge state ions compared to nanosecond lasers because the influence of heat conductivity on a solid target is almost negligible in the case of ps-laser ablation for laser pulse durations less than 10 ps. However, there is no comprehensive data on ion yields for different elements and target irradiation conditions for laser power densities at the target surface around and below 10 13 W cm –2 , which is of interest to our study of such plasmas as a source of low charge state ions for various applications, particularly for external injection of those ions into an Electron Beam Ion Source (EBIS). We investigated ion generation from Al, Ti, Cu, Nb and Ta target elements by a ps-laser with power densities in the range of 10 11 –10 13 W cm –2 at the target surface. A ps-laser with 1.27 mJ maximum energy within an 8 ps pulse and repetition rate up to 400 Hz has been used to generate a laser-ablated plasma. Dependencies of ion current versus time, total charge of registered ions as well as ion kinetic energy distributions are characterized using a Faraday cup. Significant difference in ion current dynamics between first, second and following shots onto the same target spot was found for all five target elements. The total charge of ions registered by the Faraday cup increases linearly with increasing laser pulse energy and is almost independent of the target element and number of shots onto the same target spot for all five target elements studied. The results obtained give us a basis for specification and design of the source of low charge state ions for external injection into EBIS.
Advancing Elemental and Isotopic Analysis of Uranium Mineral Inclusions: Rapid Screening via Laser-Induced Breakdown Spectroscopy and High-Resolution Laser Ablation-ICP-MS Mapping
The work presented herein employs two laser-based analytical techniques (laser-induced breakdown spectroscopy (LIBS) and laser ablation – inductively coupled plasma – mass spectrometry (LA-ICP-MS)) to spatially determine the elemental and isotopic composition of uranium bearing minerals. Uniquely, this work leverages the high-speed applicability of LIBS to “screen” the sample(s) for their elemental constituents. After determining the location of the uranium inclusions (via LIBS), high-resolution LA-ICP-MS was employed to further characterize the inclusions. The high-resolution (sub-µm) capabilities of LA-ICP-MS were able to extract important information from the uranium minerals including discerning its chemical form (e.g., finchite from carnotite, Sr- and K-bearing uranyl vanadates, respectively) as well as their 235 U/ 238 U isotopic composition. This approach, LIBS followed by LA-ICP-MS, significantly reduces the analysis time (~95 %) in comparison to employing a LA-ICP-MS only approach. Furthermore, this work presented a novel approach to analyzing inclusions via a particle/inclusion analysis tool which is commercially available within the iolite 4 software. This tool allowed for a more accurate characterization of the isotopic distribution of the inclusions, as well as allowing for rapid sizing of the inclusions. Finally, this analytical approach could readily be applied to other sample types in which the target species (e.g., µm-sized inclusions) are embedded in complex matrices (e.g., cm-sized samples).