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Strong multiple scattering of the probe in scanning transmission electron microscopy (STEM) means image simulations are usually required for quantitative interpretation and analysis of elemental maps produced by electron energy-loss…

材料科学 · 物理学 2019-12-25 Hamish G. Brown , Jim Ciston , Colin Ophus

The reaction 28Si + 181Ta has been studied at E(Lab) = 125 and 135 MeV. Coincidences between high energy particles and various X- and gamma-rays from abnormally long-lived states were observed. e.g. 7.8 - 8.6 MeV alpha-particles with…

核实验 · 物理学 2009-04-13 A. Marinov , S. Gelberg , D. Kolb

Neutrino oscillations from a wide band beam of 1-6 GeV at CERN to LENA, a 50 kton liquid scintillator, at Pyhasalmi mine 2288 km apart are simulated. The performance is very promising and this can be considered as a realistic alternative…

高能物理 - 实验 · 物理学 2009-11-26 Juha Peltoniemi

The electron energy spectra, not connected to b-decay, of 235U- and 239Pu-films, irradiated by thermal neutrons, obtained by a Monte Carlo method is presented in the given work. The modelling was performed with the help of a computer code…

According to classical electrolyte theories interactions in dilute (low ion density) electrolytes decay exponentially with distance, with the Debye screening length the characteristic length-scale. This decay length decreases monotonically…

软凝聚态物质 · 物理学 2016-07-15 Alexander M. Smith , Alpha A. Lee , Susan Perkin

The feasibility of shell-model calculations is radically extended by the Quantum Monte Carlo Diagonalization method with various essential improvements. The major improvements are made in the sampling for the generation of shell-model basis…

核理论 · 物理学 2008-11-26 Michio Honma , Takahiro Mizusaki , Takaharu Otsuka

Computational approaches, such as Monte Carlo (MC) radiation transport simulations, are used to estimate the dosimetric effects of GNPs, where results differing by orders of magnitudes have been reported by different investigators. This has…

材料科学 · 物理学 2024-06-04 Wei Bo Li , Hans Rabus , Carmen Villagrasa , Jan Schuemann

A Monte Carlo simulation has been developed to predict the spatial resolution of silicon pixel detectors. The results discussed in this paper focus on the unit cell geometry of 50 $\mu$m x 400 $\mu$m, as chosen for BTeV. Effects taken into…

高能物理 - 实验 · 物理学 2009-10-31 Marina Artuso , Jianchun Wang

We propose a simple linear scaling expression in reciprocal space for evaluating the ion--electron potential of crystalline solids. The expression replaces the long-range ion--electron potential with an equivalent localized charge…

材料科学 · 物理学 2016-12-21 Xuecheng Shao , Wenhui Mi , Qiang Xu , Yanchao Wang , Yanming Ma

The CLEO-c experiment at the CESR e+ e- storage ring has collected data with E_cm = 3.77 GeV and E_cm ~ 4.17 GeV to study the decays of charmed mesons. This paper discusses results on the hadronic branching fractions of the D0, D+, and Ds+.

高能物理 - 实验 · 物理学 2019-08-14 Peter Onyisi

A series of Silicon crystal undulator samples were produced based on the approach presented in PRL 90 (2003) 034801, with the periods of undulation from 0.1 mm to 1 mm, and the number of periods on the order of 10. The samples were…

Using the specific model of a system of like charged ions confined between two planar like charged surfaces, we compare the predictions for the energy and density profile of four simulation methods available to treat the long range Coulomb…

统计力学 · 物理学 2007-05-23 M. Mazars , J-M. Caillol , J. -J. Weis , D. Levesque

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…

加速器物理 · 物理学 2014-12-12 Tanaji Sen , Christopher Lynn

The understanding of the crystal collimation and extraction experiments performed in the recent decade at CERN SPS, FNAL Tevatron, IHEP U-70 and RHIC is reviewed from the standpoint of Monte Carlo simulations. The expectations for the LHC -…

加速器物理 · 物理学 2007-05-23 V. M. Biryukov

The Project 8 experiment aims to measure the neutrino mass using tritium beta decays. Beta-decay electron energies will be measured with a novel technique: as the electrons travel in a uniform magnetic field their cyclotron radiation will…

仪器与探测器 · 物理学 2019-08-14 N. S. Oblath

We report on the first detailed measurements of electron backscattering from plastic scintillator targets, extending our previous work on beryllium and silicon targets. The scintillator experiment posed several additional experimental…

The need to acquire multiple angle-resolved electron energy loss spectra (EELS) is one of the several critical challenges associated with electron magnetic circular dichroism (EMCD) experiments. If the experiments are performed by scanning…

We have investigated experimentally the electronic transport properties of a two-dimensional electron gas (2DEG) present in an AlSb/InAs/AlSb quantum well, where part of the toplayer has been replaced by a superconducting Nb strip, with an…

凝聚态物理 · 物理学 2009-10-28 P. H. C. Magnee , B. J. van Wees , T. M. Klapwijk , W. van de Graaf , G. Borghs

We propose a measurement on the elastic $\pi\pi$ scattering phase shift difference $\delta^0_0-\delta^2_0$ through $\Psi'\to J/\Psi \pi^+ \pi^-$ process in future high statistics BES-III experiment. The decay amplitude is constructed with…

高能物理 - 实验 · 物理学 2008-11-26 Z. X. Zhang , J. J. Sanz-Cillero , X. Y. Shen , N. Wu , L. Y. Xiao , H. Q. Zheng

A low pressure discharge sustained in molecular hydrogen with help of the electron cyclotron resonance heating at a frequency of 2.45 GHz is simulated using a fully electromagnetic implicit charge- and energy-conserving…

等离子体物理 · 物理学 2024-12-23 D. Eremin , Yu. Sharova , L. Heijmans , A. M. Yakunin , M. van de Kerkhof , R. -P. Brinkmann , E. Kemaneci