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Showing 1 to 11 of 11 for “"electron optics"”.
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A Critical Assessment of the Finite Element Method for Calculating Magnetic Fields in Electron Optics
… of the magnetic field distribution in magnetic electron lenses by means of the finite element method. A critical comparison is made of the available finite element computer programs. Necessary modifications have been made in certain programs, useful comments and general data format were written …
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Optimization of electron optics in a resonator cavity using Nelder-Mead simplex search for the quantum electron microscope
The Quantum Electron Microscope (QEM) is a proposed imaging modality that aims to reduce or eliminate the effects of radiation on living cells compared to traditional electron microscopy techniques. In recent years, an interaction free measurement scheme was proposed by Putnam and Yanik [1], and an …
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Direct ray tracing for low energy electron microscopy
… is concerned with the accurate simulation of electron trajectory paths in electron optics. In particular, it investigates the use of a direct ray tracing method that employs the Cash-Karp 5th order Runge-Kutta technique in combination with a Fourier series fit to axial magnetic/electric field …
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(e,2e) spectroscopic investigations of the spectral momentum densities of thin carbon films
An (e,2e) electron scattering spectrometer has been constructed and used for the first time to investigate the spectral momentum density of the valence bands of a solid target. This technique provides fundamental information about the electronic structure of both crystalline and amorphous solids. …
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Evaluation of tests for porosity and defects in PVD and electroless coatings.
… of electroless nickel coatings was examined. Electron optics, GDOES and ICP were used to evaluate the limits of their applicability to extend porosity/corrosion tests used on coated specimen. A marking technique was developed which enabled individual features on coated surfaces to be examined …
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From Homogeneous To Heterogeneous: Statistical 3-D Signal Reconstruction Of Macromolecular Complexes
… complexes. The data is single-particle cryo electron microscopy images of individual instances of the complex and therefore the data contains information concerning the heterogeneity of the complex, although the information is usually ignored. Each image is a noisy 2-D projection of the 3-D …
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Návrh projektorové soustavy transmisního elektronového mikroskopu pro metodu Single Particle Analysis
… projektorové soustavy byl vytvořen v programu Electron Optical Design (EOD) verze 4.020. Série buzení jednotlivých čoček pro zvětšení projektorové soustavy v rozsahu od 50 do 10000 byla vypočítaná pomocí přístupu využívajícího aproximaci tenké čočky, dále pomocí přístupu využívajícího …
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Design and Study of an Electron Beam System for Silicon Recrystallization
… work was aimed at understanding and improving an electron beam recrystallization technique which is used for the fabrication of silicon on insulator substrates. In this technique, two electron beams are employed, one to provide general heating, the other to recrystallize the Silicon - On - …