Results 31 to 40 of about 131,717 (268)

Mutually guided light and particle beam propagation

open access: yesScientific Reports, 2022
The polarizability of atoms and molecules gives rise to optical forces that trap particles and a refractive index that guides light beams, potentially leading to a self-guided laser and particle beam propagation.
Andres M. Castillo   +3 more
doaj   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

Efficient Fabrication of High‐Density Ensembles of Color Centers via Ion Implantation on a Hot Diamond Substrate

open access: yesAdvanced Physics Research
Nitrogen‐vacancy (NV) centers in diamonds are one of the most promising systems for quantum technologies, including quantum metrology and sensing. A promising strategy for the achievement of high sensitivity to external fields relies on the exploitation ...
E. Nieto Hernandez   +14 more
doaj   +1 more source

Stability diagrams of colliding beams in the Large Hadron Collider

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2014
Most hadron synchrotrons rely on lattice nonlinearities for Landau damping of impedance driven coherent modes of oscillation. However, in a collider, the presence of beam-beam interactions strongly modifies the transverse amplitude detuning and therefore
X. Buffat   +4 more
doaj   +1 more source

Symmetrization of the beam-beam interaction in an asymmetric collider [PDF]

open access: yesAIP Conference Proceedings, 1990
In order to attain high luminosity e+e− colliding beams proposed for new B Factories a consequence is a beam tune shift at the beam‐beam interaction point. Computer simulations have yielded results for unequal beam energies whereby beam blow up occurs for one beam and not for the other.
openaire   +4 more sources

Effect of terahertz irradiation on DNA damage repair in living cells

open access: yesFEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno   +3 more
wiley   +1 more source

Trace element and radiological characterisation of ash and soil at a legacy site in the former Raša coal-mining area

open access: yesArhiv za Higijenu Rada i Toksikologiju
Coal mined in the shut-down Raša mine in Istria, Croatia had a high organic sulphur content. What has remained of its local combustion is a coal and ash waste (legacy site) whose trace element and radionuclide composition in soil has enduring ...
Bituh Tomislav   +5 more
doaj   +1 more source

Modeling of nonlinear effects due to head-on beam-beam interactions

open access: yesPhysical Review Accelerators and Beams, 2018
The beam-beam interaction is one of the most severe limitations on the performance of circular colliders, as it is an unavoidable strong nonlinear effect. As one aspires for greater luminosity in future colliders, one will simultaneously achieve stronger
Sondre Vik Furuseth, Xavier Buffat
doaj   +1 more source

The PADME beam line Monte Carlo simulation

open access: yesJournal of High Energy Physics, 2022
The PADME experiment at the DAΦNE Beam-Test Facility (BTF) of the INFN Laboratory of Frascati is designed to search for invisible decays of dark sector particles produced in electron-positron annihilation events with a positron beam and a thin fixed ...
The PADME collaboration   +41 more
doaj   +1 more source

Observations of the beam-beam interaction [PDF]

open access: yes, 2007
The observed complexity of the beam-beam interaction is the subject of this paper. The varied observations obtained from many storage rings happen to be sufficiently similar that a prescription can be formulated to describe the behavior of the luminosity as a function of beam current including the peak value.
openaire   +1 more source

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