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The development of high gradient acceleration and tight phase-space control of high power beams is a key element for future lepton and hadron colliders since the increasing demands for higher energy and luminosity significantly raise costs…

Accelerator Physics · Physics 2015-12-09 Y. M. Shin , A. H. Lumpkin , R. M. Thurman-Keup

The energy spectrum of the extended attractive potential of a crystallographic row for negatively charged particles has quasi-bound states. It follows that a negatively charged particle with small transversal momentum component ($p_{\bot} R…

Mesoscale and Nanoscale Physics · Physics 2015-01-12 Gennady V. Kovalev

Lanthanide metals are a particular class of magnetic materials in which the magnetic moments are carried mainly by the localized electrons of the 4f shell. They are frequently found in technically relevant systems, to achieve, e.g., high…

Materials Science · Physics 2009-11-10 J. E. Prieto , O. Krupin , K. Doebrich , F. Heigl , G. Kaindl , K. Starke

We suggest a new type of the undulator radiation which is generated by an ultra-relativistic particle channeled along a periodically bent crystallographic plane or axis. The electromagnetic radiation arises mainly due to the bending of the…

Accelerator Physics · Physics 2009-11-07 A. V. Korol , A. V. Solov'yov , W. Greiner

The inkjet-fabricated liquid crystal (LC) droplet device not only capitalizes on the intrinsic birefringence properties of liquid crystals but also leverages the hemispherical shape of droplet devices on substrates. This configuration…

This paper discusses the undulator radiation emitted by high-energy positrons during planar channeling in periodically bent crystals. We demonstrate that the construction of the undulator for positrons with energies of 10 GeV and above is…

Accelerator Physics · Physics 2015-06-26 W. Krause , A. V. Korol , A. V. Solov'yov , W. Greiner

This paper discusses the undulator radiation emitted by high-energy positrons during planar channeling in periodically bent crystals. We demonstrate that the construction of the undulator for positrons with energies of 10 GeV and above is…

Accelerator Physics · Physics 2009-11-07 W. Krause , A. V. Korol , A. V. Solov'yov , W. Greiner

Propagation of high-current relativistic electron beam (REB) in plasma is relevant to many high-energy astrophysical phenomena as well as applications based on high-intensity lasers and charged-particle beams. Here we report a new regime of…

Plasma Physics · Physics 2023-05-08 K. Jiang , T. W. Huang , R. Li , M. Y. Yu , H. B. Zhuo , S. Z. Wu , C. T. Zhou , S. C. Ruan

Anthracene derivative compounds are currently investigated because of their unique physical properties (e.g., bright luminescence and emission tunability), which make them ideal candidates for advanced optoelectronic devices. Intermolecular…

For a particle channeled in the bent crystal planes (axes), the phenomenon of "bending dechanneling", which is a particle transition to a random state due to centrifugal force, is well known. We consider an analytical theory of the reverse…

High Energy Physics - Experiment · Physics 2009-11-07 Valery M. Biryukov

Methodology is developed that incorporates the radiation reaction force into the relativistic molecular dynamics framework implemented in the MBN Explorer software package. The force leads to a gradual decrease in the projectile's energy E…

Accelerator Physics · Physics 2023-01-04 Gennady B. Sushko , Andrei V. Korol , Andrey V. Solov'yov

We study channeling radiation from electron beams with energies under 100 MeV. We introduce a phenomenological model of dechanneling, correct non-radiative transition rates from thermal scattering, and discuss in detail the population…

Accelerator Physics · Physics 2014-12-12 Tanaji Sen , Christopher Lynn

An analytical theory for the efficiency of scattering-induced transitions from a random to a channeled state (feed-in) in bent crystals is derived. The predictions from the theory are in good agreement with experiment and Monte Carlo…

High Energy Physics - Experiment · Physics 2009-11-07 Valery M. Biryukov

The metamaterial based on two planar photonic crystals was used on experimental express analysis of liquids. The metamaterial operates at a frequency of about 9.5 GHz, and has a small size. It was shown experimentally that when the liquid…

Soft Condensed Matter · Physics 2017-01-24 Sergey Polevoy , Arthur Vakula , Sergey Nedukh , Sergey Tarapov

The Large Hadron Collider (LHC) uses a multi-stage collimator system to absorb the growing halo of circulating beams to protect and ensure reliable operation of superconducting magnets. A similar system is planned for the Future Circular…

Mechanical and elastic properties of materials are among the most fundamental quantities for many engineering and industrial applications. Here, we present a formulation that is efficient and accurate for calculating the elastic and bending…

Materials Science · Physics 2026-03-23 Changpeng Lin , Samuel Poncé , Francesco Macheda , Francesco Mauri , Nicola Marzari

We review achievements made in recent years in the field of numerical modeling of ultra-relativistic projectiles propagation in oriented crystals, radiation emission and related phenomena. This topic is highly relevant to the problem of…

Accelerator Physics · Physics 2023-05-17 Andrei V. Korol , Gennady B. Sushko , Andrey V. Solov'yov

Liquid crystals formed by acute-angle bent-core (ABC) molecules with a 1,7 naphthalene central core show an intriguing phase behavior with the nematic phase accompanied by poorly understood additional phases. In this work, we characterize…

Geant4 is a tool kit developed by a collaboration of physicists and computer professionals in the High Energy Physics field for simulation of the passage of particles through matter. The motivation for the development of the Beam Tools is…

High Energy Physics - Experiment · Physics 2007-05-23 V. Daniel Elvira , P. Lebrun , P. Spentzouris