Results 21 to 30 of about 3,052,189 (295)

Ultra-short pulse laser acceleration of protons to 80 MeV from cryogenic hydrogen jets tailored to near-critical density

Nature Communications, 2023
Laser plasma-based particle accelerators attract great interest in fields where conventional accelerators reach limits based on size, cost or beam parameters.
Martin Rehwald, Stefan Assenbaum, Constantin Bernert, Florian-Emanuel Brack, Michael Bussmann, Thomas E. Cowan, Chandra B. Curry, Frederico Fiuza, Marco Garten, Lennart Gaus, Maxence Gauthier, Sebastian Göde, Ilja Göthel, Siegfried H. Glenzer, Lingen Huang, Axel Huebl, Jongjin B. Kim, Thomas Kluge, Stephan Kraft, Florian Kroll, Josefine Metzkes-Ng, Thomas Miethlinger, Markus Loeser, Lieselotte Obst-Huebl, Marvin Reimold, Hans-Peter Schlenvoigt, Christopher Schoenwaelder, Ulrich Schramm, Mathias Siebold, Franziska Treffert, Long Yang, Tim Ziegler, Karl Zeil   +32 more
doaj   +1 more source

Physics-Based Deep Neural Networks for Beam Dynamics in Charged Particle Accelerators [PDF]

Physical Review Accelerators and Beams, 2020
This paper presents a novel approach for constructing neural networks which model charged particle beam dynamics. In our approach, the Taylor maps arising in the representation of dynamics are mapped onto the weights of a polynomial neural network.
A. Ivanov, I. Agapov
semanticscholar   +1 more source

Silicon crystals for steering high-intensity particle beams at ultrahigh-energy accelerators

Physical Review Research, 2021
Experimental results and simulation models show that crystals might play a relevant role for the development of new generations of high-energy and high-intensity particle accelerators and might disclose innovative possibilities at existing ones.
A. Mazzolari, M. Romagnoni, E. Bagli, L. Bandiera, S. Baricordi, R. Camattari, D. Casotti, M. Tamisari, A. Sytov, V. Guidi, G. Cavoto, S. M. Carturan, D. De Salvador, A. Balbo, G. Cruciani, Thu Nhi Tran Caliste, R. Verbeni, N. Pastrone, L. Lanzoni, A. Rossall, J. A. van den Berg, R. Jenkins, P. Dumas   +22 more
doaj   +1 more source

Magnetized particle transport in multi-MA accelerators

Physical Review Accelerators and Beams, 2021
Kinetic simulations of Sandia National Laboratories’ Z machine are conducted to understand particle transport in the highly magnetized environment of a multi-MA accelerator. Joule heating leads to the rapid formation of electrode surface plasmas.
N. Bennett, D. R. Welch, G. Laity, D. V. Rose, M. E. Cuneo   +4 more
doaj   +1 more source

Physics-informed Gaussian Process for Online Optimization of Particle Accelerators [PDF]

Physical Review Accelerators and Beams, 2020
High-dimensional optimization is a critical challenge for operating large-scale scientific facilities. We apply a physics-informed Gaussian process (GP) optimizer to tune a complex system by conducting efficient global search.
A. Hanuka, X. Huang, J. Shtalenkova, D. Kennedy, A. Edelen, V. R. Lalchand, D. Ratner, J. Duris   +7 more
semanticscholar   +1 more source

Online multi-objective particle accelerator optimization of the AWAKE electron beam line for simultaneous emittance and orbit control

AIP Advances, 2020
Multi-objective optimization is important for particle accelerators where various competing objectives must be satisfied routinely such as, for example, transverse emittance vs bunch length.
Alexander Scheinker, Simon Hirlaender, Francesco Maria Velotti, Spencer Gessner, Giovanni Zevi Della Porta, Verena Kain, Brennan Goddard, Rebecca Ramjiawan   +7 more
doaj   +1 more source

Particle Acceleration Mechanisms [PDF]

International Astronomical Union Colloquium, 1994
AbstractHigh-energy particle acceleration is observed to proceed in a diverse variety of astrophysical sites ranging from the terrestrial aurorae to the most distant quasars. Particle acceleration is a fairly common channel for the release of large-scale kinetic, rotational, and magnetic energy.
openaire   +3 more sources

Development of a novel approach for construction of high gradient braze-free S-band cavities

Scientific Reports, 2021
Vacuum breakdown is one of the main limitations to the operating accelerating gradient in radio frequency linear accelerators. Recent studies of copper cavities have been shown that harder copper conditions more quickly and can reach higher accelerating ...
Mahdi Aghayan, S. Farhad Masoudi, Farshad Ghasemi, Walter Wuensch, Hamed Shaker   +4 more
doaj   +1 more source

Review of Quality Optimization of Electron Beam Based on Laser Wakefield Acceleration

Photonics, 2022
Compared with state-of-the-art radio frequency accelerators, the gradient of laser wakefield accelerators is 3–4 orders of magnitude higher. This is of great significance in the development of miniaturized particle accelerators and radiation sources ...
Kangnan Jiang, Wentao Wang, Ke Feng, Ruxin Li   +3 more
doaj   +1 more source

Evaluation of MLC Thickness and Composite Effects on Collimation Parameters using EGSnrc and IAEA Phase Space Data [PDF]

Journal of Biomedical Physics and Engineering, 2020
Background: Recently, multileaf collimators (MLC) have become an important part of any LINAC collimation system because they reduce the treatment planning time and improve the conformity.
K Hadad, H Alipour
doaj   +1 more source