Results 41 to 50 of about 69,031 (267)

Simultaneous high-resolution x-ray backlighting and self-emission imaging for laser-produced plasma diagnostics using a two-energy multilayer Kirkpatrick–Baez microscope

Matter and Radiation at Extremes, 2022
A simultaneous high-resolution x-ray backlighting and self-emission imaging method for laser-produced plasma diagnostics is developed in which two Kirkpatrick–Baez imaging channels for high-energy and low-energy diagnostics are constructed using a ...
S. Z. Yi, J. Q. Dong, L. Jiang, Q. S. Huang, E. F. Guo, Wang Z. S.   +5 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Characterization of online high dynamic range imaging for laser-driven ion beam diagnostics using visible light

Current Directions in Biomedical Engineering, 2017
Laser-driven acceleration of particle beams is an emerging modality under research for biomedical applications. The spatially resolved diagnostics of laser-accelerated proton bunches is crucial for their application.
Englbrecht Franz, Balling Felix, Rösch Thomas Federico, Würl Matthias, Lindner Florian Hans, Parodi Katia, Schreiber Jörg   +6 more
doaj   +1 more source

Recent diagnostic developments at the 100 kJ-level laser facility in China

Matter and Radiation at Extremes, 2020
A 100 kJ-level laser facility has been designed to study inertial confinement fusion physics in China. This facility incorporates various diagnostic techniques, including optical, x-ray imaging, x-ray spectrum, and fusion product diagnostics, as well as ...
Feng Wang, Shaoen Jiang, Yongkun Ding, Shenye Liu, Jiamin Yang, Sanwei Li, Tianxuan Huang, Zhurong Cao, Zhenghua Yang, Xin Hu, Wenyong Miao, Jiyan Zhang, Zhebin Wang, Guohong Yang, Rongqing Yi, Qi Tang, Longyu Kuang, Zhichao Li, Dong Yang, Yulong Li, Xiaoshi Peng, Kuan Ren, Baohan Zhang   +22 more
doaj   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Diagnostics of laser-produced plasmas

Nukleonika, 2016
We present the general challenges of plasma diagnostics for laser-produced plasmas and give a few more detailed examples: spherically bent crystals for X-ray imaging, velocity interferometers (VISAR) for shock studies, and proton radiography.
Batani Dimitri, Morace Alessio, Maheut Yohann, Jakubowska Katarzyna, Volpe Luca   +4 more
doaj   +1 more source

Scanning of Optical Fields Using Near-Field Scanning Optical Microscopy

Communications, 2006
The Near-field scanning optical microscopy is a high-resolution diagnostics for the optical field characterization. In our experiments we focus on the optical field characterization of semiconductor laser diodes based on multiple quantum well structure ...
Dusan Pudis, Ivan Martincek, Ivan Turek, M. Michalka, J. Kovac, V. Gottschalch, Daniel Kacik   +6 more
doaj   +1 more source

Lipid Nanoparticles for the Delivery of CRISPR/Cas9 Machinery to Enable Site‐Specific Integration of CFTR and Mutation‐Agnostic Disease Rescue

Advanced Functional Materials, EarlyView.
Lipid nanoparticles (LNPs) are optimized to co‐deliver Cas9‐encoding messenger RNA (mRNA), a single guide RNA (sgRNA) targeting the endogenous cystic fibrosis transmembrane conductance regulator (CFTR) gene, and homologous linear double‐stranded donor DNA (ldsDNA) templates encoding CFTR.
Ruth A. Foley, Paul G. Ayoub, Vrishti Sinha, Colin Juett, Alicia Sanoyca, Emily C. Duggan, Lindsay E. Lathrop, Priyanka Bhatt, Kevin Coote, Beate Illek, Brigitte N. Gomperts, Donald B. Kohn, Steven J. Jonas   +12 more
wiley   +1 more source

“SMART” LASER SCALPELS FOR ROBOTIC SURGERY

Alʹmanah Kliničeskoj Mediciny, 2016
Background: Elaboration of automatized and robotic systems for precision and minimally traumatic surgery is one of the main areas of modern surgery. The concept of the so-called “smart” laser scalpels seems a  promising technical solution in this field ...
A. K. Dmitriev, A. N. Konovalov, V. N. Kortunov, V. A. Ul'yanov   +3 more
doaj   +1 more source

Single- and two-photon absorption laser-induced fluorescence spectroscopy in rare gases for gridded ion thruster diagnostics

EPJ Techniques and Instrumentation, 2022
Methods based on laser-induced fluorescence spectroscopy are widely used for spatially resolved non-intrusive diagnostics of atomic or molecular densities and velocity distributions in plasma applications.
Christoph Eichhorn, Lukas Pietzonka, Frank Scholze, Carsten Bundesmann, Daniel Spemann, Horst Neumann, Hans J. Leiter   +6 more
doaj   +1 more source