Aberration-corrected Analytical Electron Microscopy (RMS - - download pdf or read online

By Rik Brydson

ISBN-10: 0470518510

ISBN-13: 9780470518519

The publication is worried with the speculation, historical past, and sensible use of transmission electron microscopes with lens correctors that could right the results of round aberration. The e-book additionally covers a comparability with aberration correction within the TEM and purposes of analytical aberration corrected STEM in fabrics technological know-how and biology. This ebook is vital for microscopists eager about nanoscale and fabrics microanalysis specially these utilizing scanning transmission electron microscopy, and comparable analytical innovations similar to electron diffraction x-ray spectrometry (EDXS) and electron strength loss spectroscopy (EELS).

Show description

Read or Download Aberration-corrected Analytical Electron Microscopy (RMS - Royal Microscopical Society) PDF

Best light books

Download e-book for kindle: Dynamic Laser Speckle and Applications by Hector J. Rabal, Roberto A. Braga Jr.

Speckle research constitutes a multidisciplinary region with inherent complexities. so as to overcome demanding situations equivalent to the variety of samples and delicate measurements, researchers needs to increase a theoretical and statistical realizing of either organic and non-biological metrology utilizing dynamic speckle laser.

Laser Cleaning II - download pdf or read online

Laser cleansing II is the second one of a chain of books reporting study at the use of lasers for cleansing fabric surfaces and comparable micro-scale and nano-scale laser processing. It follows Laser cleansing, edited via Boris Luk yanchuk, released in 2002. the first concentration is on contaminant particle removing, nano-scale sized debris specifically, which represents an immense cleansing problem in commercial contexts and poses a extensive variety of analysis questions.

New PDF release: Modern Optical Spectroscopy: With Exercises and Examples

This textbook deals transparent reasons of optical spectroscopic phenomena and indicates how spectroscopic ideas are utilized in glossy molecular and mobile biophysics and biochemistry. the themes coated contain digital and vibrational absorption, fluorescence, resonance strength move, exciton interactions, round dichroism, coherence and dephasing, ultrafast pump-probe and photon-echo spectroscopy, single-molecule and fluorescence-correlation spectroscopy, Raman scattering, and multiphoton absorption.

Extra resources for Aberration-corrected Analytical Electron Microscopy (RMS - Royal Microscopical Society)

Example text

They can be used to correct or compensate for aberrations in the main rotationally symmetric electromagnetic lenses (see Chapter 4). 3) in which the magnitude of F, |F| = |B|e|v| sin θ. Where θ is the angle between B and v. Hence if a component of v is parallel to B, |F| = 0, but any perpendicular component will result in a force on the electron, which will describe a circular motion about B. The resulting path of the electron will describe a helix. If the cylindrical lens has an homogeneous field then the electrons which pass exactly through the centre will experience no force but those some distance off the main axis will spiral towards INTRODUCTION TO ELECTRON OPTICS 27 the centre and then out again, leading to a focusing action of the lens.

Beam damage of the specimen can occur by two dominant mechanisms – knock-on damage in which an atom or ion is displaced from its normal site, and ionisation damage (in some contexts called radiolysis) in which electrons are perturbed leading to chemical and then possibly structural changes. Both mechanisms are discussed by Williams and Carter (2009) and also Egerton et al. (2004), who give a chart showing the ranges of primary beam energy which are likely to cause displacement damage for specific atomic species.

In some cases, a sample in the TEM also behaves like an aperture and fringes (Fresnel fringes) appear at sharp edges on the image of the sample and degrade the resolution. The sum over all the different spherical waves – the Fresnel integral – can be treated in a graphical way using an amplitude-phase diagram in which the amplitude is represented by a distance in the xy plane and the phase is represented INTRODUCTION TO ELECTRON OPTICS 23 by angle. By plotting how the overall intensity changes as the waves are summed, it is possible, for example, to illustrate how the intensity changes in the vicinity of a sharp edge in the specimen.

Download PDF sample

Aberration-corrected Analytical Electron Microscopy (RMS - Royal Microscopical Society) by Rik Brydson

by Jason

Rated 4.53 of 5 – based on 27 votes