Results 41 to 50 of about 3,754,015 (306)

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

Robust energetic positron beam production in laser-electron beam interactions

open access: yesFundamental Plasma Physics
Particle accelerators require energetic positron sources to satisfy next generation requirements. Positrons are currently sourced using solid targets. Here, we consider the collision of an energetic electron beam (≥5 GeV) with an intense laser pulse (2 ...
L.A. Ingle, C.D. Murphy, C.P. Ridgers
doaj   +1 more source

Two Dimensional Simulation of Beam Injection Into Neutral Plasma [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1990
Two dimensional electrostatic model was used to investigate the interactions between bean electron and neutral plasma. It was found that results heavily depend on the beam density.
Jong Ho Seon, Kyoung Wook Min
doaj  

Effect of electron disruption in the energy recovery linac based electron ion collider

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2010
Beam-beam effects present one of the major factors limiting the luminosity of colliders. In the energy recovery linac (ERL) based eRHIC design, the electron beam, accelerated in a superconducting ERL, collides with the proton beam circulating in the RHIC
Y. Hao, V. Ptitsyn
doaj   +1 more source

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

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

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 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

A map for the thick beam-beam interaction [PDF]

open access: yesProceedings Particle Accelerator Conference, 2002
We give a closed-form expression for the thick beam-beam interaction for a small disruption parameter, as typical in electron-positron storage rings. The dependence on transverse angle and position of the particle trajectory as well as the longitudinal position of collision and the waist-modified shape of the beam distribution are included.
Irwin, J., Chen, T.
openaire   +1 more source

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