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We calculate synchrotron radiation in three-dimensional pseudo-Newtonian magnetohydrodynamic simulations of radiatively inefficient accretion flows. We show that the emission is highly variable at optically thin frequencies, with order of…

Astrophysics · Physics 2009-11-10 Joshua E. Goldston , Eliot Quataert , Igor V. Igumenshchev

We report about the methods used in, and the performance of, the new fast and light-weight linear beam transport program MinT. MinT provides, beyond the usual linear ion optics, methods to compute the effects of beam degradation, multiple…

Accelerator Physics · Physics 2023-07-31 C. Baumgarten

Neutron Resonance Transmission Analysis (NRTA) is a spectroscopic technique which uses the resonant absorption of neutrons in the epithermal range to infer the isotopic composition of an object. This spectroscopic technique has relevance in…

Instrumentation and Detectors · Physics 2021-05-19 Ethan A. Klein , Farheen Naqvi , Jacob E. Bickus , Hin Y. Lee , Robert J. Goldston , Areg Danagoulian

(Dated: August 3, 2018) The new method of numerical analysis of experimental ferromagnetic resonance (FMR) spectra in thin films is developed and applied to (Ga,Mn)As thin films. Specifically, it starts with the finding of numerical…

Materials Science · Physics 2018-10-17 Piotr Tomczak , Henryk Puszkarski

A beam-energy-spread monitor is under development in order to control and stabilize the energy spread of high-current single-bunch electron beams for producing a sufficient number of positrons. The author has proposed a new monitor using…

Accelerator Physics · Physics 2009-10-05 Tsuyoshi Suwada

Co and CoO thin films were deposited by magnetron sputtering in the form of multilayers. They were irradiated with Ar and Si ion beams of different energies and fluences. The magnetic properties were investigated.

Materials Science · Physics 2016-08-22 A. S. Bhattacharyya

Ion beam analysis techniques are among the most powerful tools for advanced material characterization. Despite their growing relevance in a widening number of fields, most ion beam analysis facilities still rely on the oldest accelerator…

Plasma Physics · Physics 2019-03-06 Matteo Passoni , Luca Fedeli , Francesco Mirani

Nuclear resonant forward scattering (NFS) and nuclear inelastic scattering (NIS) of synchrotron radiation are fairly recent spectroscopic methods for the investigation of complexes containing M\"ossbauer-active transition metal ions. NFS,…

Chemical Physics · Physics 2012-06-12 Hauke Paulsen , Volker Schünemann , Alfred Xaver Trautwein , Heiner Winkler

Ion Beam Analysis (IBA) is an established tool for material characterization, providing precise information on elemental composition, depth profiles, and structural information in the region near the surface of materials. However,…

Materials Science · Physics 2025-02-21 Tiago Fiorini da Silva

Nuclear emulsions are capable of very high position resolution in the detection of ionizing particles. This feature can be exploited to directly resolve the micrometric-scale fringe pattern produced by a matter-wave interferometer for low…

Instrumentation and Detectors · Physics 2018-05-09 S. Aghion , A. Ariga , M. Bollani , A. Ereditato , R. Ferragut , M. Giammarchi , M. Lodari , C. Pistillo , S. Sala , P. Scampoli , M. Vladymyrov

Self-driving labs (SDLs), employing automation and machine learning (ML) to accelerate experimental procedures, have enormous potential in the discovery of new materials. However, in thin film science, SDLs are mainly restricted to…

Machine Learning · Computer Science 2026-01-12 Sanna Jarl , Jens Sjölund , Robert J. W. Frost , Anders Holst , Jonathan J. S. Scragg

Neutron Resonance Transmission Analysis (NRTA) uses resonant absorption of neutrons to infer the absolute isotopic composition of a target object, enabling applications in a broad range of fields such as archaeology, materials analysis of…

Instrumentation and Detectors · Physics 2020-01-29 Ezra M. Engel , Ethan A. Klein , Areg Danagoulian

An efficient approach for the simulation of ion scattering from solids is proposed. For every encountered atom, we take multiple samples of its thermal displacements among those which result in scattering with high probability to finally…

Materials Science · Physics 2011-05-18 V. A. Khodyrev , R. Andrzejewski , A. Rivera , D. O. Boerma , J. E. Prieto

Recently, we suggested that low-energy beta-beam neutrinos can be very useful for the study of supernova neutrino interactions. In this paper, we examine the use of a such experiment for the analysis of a supernova neutrino signal. Since…

Nuclear Theory · Physics 2008-11-26 N. Jachowicz , G. C. McLaughlin , C. Volpe

The recent development of a micromagnetic simulation methodology - suitable for multiphase magnetic nanocomposites - permits the computation of the magnetic microstructure and of the associated magnetic small-angle neutron scattering (SANS)…

Mesoscale and Nanoscale Physics · Physics 2012-07-11 Andreas Michels , Sergey Erokhin , Dmitry Berkov , Nataliya Gorn

Crossing a horizontal nonlinear resonance is the approach that can be used to split a beam in several beamlets with the goal to perform multi-turn extraction from a circular particle accelerator. Such an approach has been successfully…

Accelerator Physics · Physics 2022-11-29 G. Russo , F. Cerutti , L. S. Esposito , G. Franchetti , M. Giovannozzi , J. R. Hunt , A. Huschauer

Autonomous synthesis and characterization of inorganic materials requires the automatic and accurate analysis of X-ray diffraction spectra. For this task, we designed a probabilistic deep learning algorithm to identify complex multi-phase…

Materials Science · Physics 2021-05-27 Nathan J. Szymanski , Christopher J. Bartel , Yan Zeng , Qingsong Tu , Gerbrand Ceder

Self-consistent computations of the potential profile in complex semiconductor heterostructures can be successfully applied for comprehensive simulation of the gain and the absorption spectra, for the analysis of the capture, escape,…

Other Condensed Matter · Physics 2009-11-10 Ivan Safonov , Aleksey Shulika , Igor Sukhoivanov , Volodimir Lysak

Several, recently proposed methods of surface manufacturing based on ion beam sputtering, which involve dual beam setups, sequential application of ion beams from different directions, or sample rotation, are studied with the method of…

Mesoscale and Nanoscale Physics · Physics 2023-01-05 Taha Yasseri , Reiner Kree

Neutron Zeeman spatial beam-splitting is considered at reflection from magnetically noncollinear films. Two applications of Zeeman beam-splitting phenomenon in polarized neutron reflectometry are discussed. One is the construction of…

Materials Science · Physics 2017-01-31 S. V. Kozhevnikov , V. K. Ignatovich , F. Radu