Results 81 to 90 of about 77,319 (287)

Industrial hygiene and safety implications of radiofrequency use in particle accelerator technologies

Radiation Protection and Environment
Despite their essential contributions, particle accelerators present unique occupational hazards, including exposure to ionizing radiation, high-voltage systems, cryogenic temperatures, and risks associated with handling hazardous materials and strong ...
Vyom Saxena
doaj   +1 more source

IPAC2010 Accelerator Prize article: Particle accelerators and colliders

Physical Review Accelerators and Beams, 2020
In this document, I recall my own personal memories of the conception, design, construction and operation of particle accelerators and particle colliders over the past 50 years.
Stephen Myers
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Development Status and Trend of Particle Accelerator in China

Yuanzineng kexue jishu, 2022
Particle accelerators in China have been in rapid development in the past twenty years and are approaching the world’s advanced level in terms of different types, scales and application directions.
TANG Jingyu;ZHOU Luping
doaj  

Warp-X: a new exascale computing platform for beam-plasma simulations

, 2018
Turning the current experimental plasma accelerator state-of-the-art from a promising technology into mainstream scientific tools depends critically on high-performance, high-fidelity modeling of complex processes that develop over a wide range of space ...
Almgren, A., Bell, J., Ge, L., Grote, D. P., Hogan, M., Kononenko, O., Lehe, R., Myers, A., Ng, C., Park, J., Ryne, R., Shapoval, O., Thevenet, M., Vay, J. -L., Zhang, W.   +14 more
core   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

Advanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller, Amaya Compart, Mahnaz Mehdizadehlima, Serhii Yaroshevskyi, Christos G. Aneziris, Horst Biermann, Anja Weidner   +6 more
wiley   +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

Modelling of a variable length gas cell target for laser wakefield acceleration

High Power Laser Science and Engineering
We present time-dependent two-dimensional (2D) and three-dimensional (3D) fluid simulations of a gas cell with a variable length of 0–5 cm, designed for laser wakefield acceleration.
Runfeng Luo, Greg Christian, Michael Backhouse, Nelson Lopes, Saleh Alatabi, Michael Bloom, Matthias Maier, Zulfikar Najmudin   +7 more
doaj   +1 more source

Operational data for fault prognosis in particle accelerators with machine learning. [PDF]

Data Brief, 2023
Radaideh MI, Pappas C, Wezensky M, Cousineau S.   +3 more
europepmc   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source