Results 81 to 90 of about 223,941 (197)

Characterization of laser-driven single and double electron bunches with a permanent magnet quadrupole triplet and pepper-pot mask

New Journal of Physics, 2014
Electron beams from laser-plasma wakefield accelerators have low transverse emittance, comparable to those from conventional radio frequency accelerators, which highlights their potential for applications, many of which will require the use of quadrupole
G G Manahan, E Brunetti, C Aniculaesei, M P Anania, S Cipiccia, M R Islam, D W Grant, A Subiel, R P Shanks, R C Issac, G H Welsh, S M Wiggins, D A Jaroszynski   +12 more
doaj   +1 more source

Quantum confinement particle in a 2D quadrupole potential

, 2010
"We analytically solve the Hamiltonian for a quantum particle confined in a cylindrical hard-wall well, subject to the action of a two-dimensional quadrupolar potential at the well center. The angular part of the wavefunction is expressed by Mathieu functions whose angulareigenenergies take negative values when the quadrupolar momentum is above a ...
J. Adrian Reyes, G. J. Vázquez, M. del Castillo-Mussot, A. Reyes   +3 more
openaire   +1 more source

Simulation and Engineering Design of a Secondary Quadrupole Ion Transmission System

Zhipu Xuebao
In this study, the secondary quadrupole ion transmission system was investigated, focusing on its design and optimization using computational fluid dynamics (CFD) and ion optics simulations.
Xin ZHANG, Ji-fan YIN, Wu WEN, Xin-yu YANG, Qun ZHANG, Li-tian WANG, Kai YANG, Yong-shuai ZHOU, Xing-ke WU   +8 more
doaj   +1 more source

Current Role and Potential of Triple Quadrupole Mass Spectrometry in Biomedical Research and Clinical Applications

Molecules
Mass-spectrometry-based assays nowadays play an essential role in biomedical research and clinical applications. There are different types of commercial mass spectrometers on the market today, and triple quadrupole (QqQ) is one of the time-honored ...
Andreas Tsakalof, Alexey A. Sysoev, Kira V. Vyatkina, Alexander A. Eganov, Nikolay N. Eroshchenko, Alexey N. Kiryushin, Alexey Yu. Adamov, Elena Yu. Danilova, Alexander E. Nosyrev   +8 more
doaj   +1 more source

Spinodal Theory: A Common Rupturing Mechanism in Spinodal Dewetting and Surface Directed Phase Separation (Some Technological Aspects: Spatial Correlations and the Significance of Dipole-Quadrupole Interaction in Spinodal Dewetting)

Advances in Condensed Matter Physics, 2011
The emerging structures in spinodal dewetting of thin nano films and spinodal decomposition of binary mixtures are found to be similar with certain differences attributed to the nonlinearities inherent in the wetting forces.
Satya Pal Singh
doaj   +1 more source

Observation of tunable accidental bound state in the continuum in silicon nanodisk array

Nanophotonics
We experimentally demonstrate the tuning of accidental bound states in the continuum (A-BICs) in silicon nanodisk arrays. The A-BIC emerges of the destructive interference of multipoles, which are the dominating out-of-plane electric dipole and in-plane ...
Han Yingying, Xiong Lei, Shi Jianping, Li Guangyuan   +3 more
doaj   +1 more source

Gravitational waves effects in a Lorentz–violating scenario

Physics Letters B
This paper focuses on how the production and polarization of gravitational waves are affected by spontaneous Lorentz symmetry breaking, which is driven by a self–interacting vector field.
K.M. Amarilo, M.B. Ferreira Filho, A.A. Araújo Filho, J.A.A.S. Reis   +3 more
doaj   +1 more source

Special N-dimensional charged anti-de-Sitter black holes in f(Q) gravitational theory

Physics Letters B
In this study, we introduce a toroidal solution for charged anti-de Sitter black holes in N dimensions within the framework of the quadratic form of f(Q) gravity, employing the coincident gauge condition [1].
G.G.L. Nashed
doaj   +1 more source

Metastable doubly charged Rydberg trimers

Physical Review Research
We examine an effectively one-electron system with three positive nuclei composed of a ^{87}Rb^{*} Rydberg atom interacting with a pair of ^{87}Rb^{+} ions and predict the existence of metastable vibrationally bound states of ^{87}Rb_{3}^{2+}.
Daniel J. Bosworth, Matthew T. Eiles, Peter Schmelcher   +2 more
doaj   +1 more source

A nature-inspired ion trap for parallel manipulation of ions on a massive scale. [PDF]

Sci Adv
Krutchinsky AN, Chait BT.
europepmc   +1 more source