Results 11 to 20 of about 7,481 (251)

Integrating static angle ports and dynamic collimator rotation in volumetric modulated arc therapy for hypofractionated whole breast irradiation in Chinese females: a single-centre dosimetric study [PDF]

Radiation Oncology
Background Whole breast irradiation remains the standard in breast-conserving therapy for early-stage carcinoma. Conventional RapidArc™ plans, while dosimetrically efficient, are limited by fixed collimator position.
Adams Hei Long Yuen, Matthew Shing Cheung Yik, Kenneth Tsz Hei Chung, Fuk Hay Tang, Christopher Wai Keung Lai, Yue Li, Yaqing Nong, Mingmei Tang, Zhen Zhang, Xingliu Wang, Xiaoshen Wang, Weihua Zhu, Fuqiang Chen, Alex Hoi Ning Leung, Jacky Tsz Lung Wong   +14 more
doaj   +2 more sources

Laser beam welding of high thickness sheet metal with highly dynamic beam shaping

Procedia CIRP
Published by Elsevier, Amsterdam [u.a.]
Simon Olschok, Uwe Reisgen
exaly   +3 more sources

Influence of dynamic beam shaping on the geometry of the keyhole during laser beam welding

Procedia CIRP, 2022
Jonas Wagner, Andreas Heider, Reiner Ramsayer, Rudolf Weber, Frauke Faure, Artur Leis, Nina Armon, Roey Susid, Oded Tsiony, Eyal Shekel, Thomas Graf   +10 more
exaly   +2 more sources

Polarization-controlled nonlinear computer-generated holography

Scientific Reports, 2023
Dynamic phase-only beam shaping with a liquid crystal spatial light modulator is a powerful technique for tailoring the intensity profile or wave front of a beam.
Lisa Ackermann, Clemens Roider, Kristian Cvecek, Nicolas Barré, Christian Aigner, Michael Schmidt   +5 more
doaj   +1 more source

Beam shaping technology and its application in metal laser additive manufacturing: A review

Journal of Materials Research and Technology, 2023
Laser additive manufacturing (AM) technology is widely applied in manufacturing critical components (e.g., rocket fuel nozzles, satellite antenna mounts and human implants, etc.) in automotive, medical, aerospace and other fields due to the advantages of
Jiang Bi, Liukun Wu, Shide Li, Zhuoyun Yang, Xiangdong Jia, Mikhail Dmitrievich Starostenkov, Guojiang Dong   +6 more
doaj   +1 more source

Beam Shaping in Laser Powder Bed Fusion: Péclet Number and Dynamic Simulation

Metals, 2022
A uniform distribution of power density (energy flux) in a stationary laser beam leads to a decrease in the overheating of the material in the center of the laser beam spot during laser powder bed fusion and a decrease in material losses due to its ...
Sergey N. Grigoriev, Andrey V. Gusarov, Alexander S. Metel, Tatiana V. Tarasova, Marina A. Volosova, Anna A. Okunkova, Andrey S. Gusev   +6 more
doaj   +1 more source

Understanding the Changed Mechanisms of Laser Beam Fusion Cutting by Applying Beam Oscillation, Based on Thermographic Analysis

Applied Sciences, 2021
The latest research on applying beam oscillation in laser beam fusion cutting revealed significant process improvements regarding speed and quality.
Thomas Pinder, Cindy Goppold
doaj   +1 more source

1-Bit Transmission-Type Digital Programmable Coding Metasurface with Multi-Functional Beam-Shaping Capability for Ka-Band Applications

Micromachines, 2023
Digital programmable coding metasurfaces (DPCMs) have recently attracted enormous attention and have been broadly applied, owing to their ability to manipulate electromagnetic (EM) wave behaviours and programmable multi-functionality.
Aqeel Hussain Naqvi, Duc Anh Pham, Syed Imran Hussain Shah, Sungjoon Lim   +3 more
doaj   +1 more source

Improvement of Laser Beam Fusion Cutting of Mild and Stainless Steel Due to Longitudinal, Linear Beam Oscillation

Applied Sciences, 2020
The latest research on laser beam fusion cutting (LBFC) with static beam shaping have shown a limitation in the quality of cut parts for thick steel plates (> 6 mm) when using solid state lasers.
Cindy Goppold, Thomas Pinder, Susanne Schulze, Patrick Herwig, Andrés Fabián Lasagni   +4 more
doaj   +1 more source

Dynamic ultraviolet harmonic beam pattern control by programmable spatial wavefront modulation of near-infrared fundamental beam

Nanophotonics, 2023
The ultraviolet (UV) wavelength regime is attracting increasing attention because of its growing demand in semiconductor lithography, spectroscopy, and imaging applications owing to its high spatial resolution and high photon energy.
Won Seungjai, Choi Seungman, Kim Taewon, Kim Byunggi, Kim Seung-Woo, Kim Young-Jin   +5 more
doaj   +1 more source