By Harald Ibach, Peter W. Hawkes
ISBN-10: 0387528180
ISBN-13: 9780387528182
ISBN-10: 3540528180
ISBN-13: 9783540528180
Electron power loss spectroscopy has develop into an vital device in floor research. even supposing the elemental physics of this method is easily understood, tool layout has formerly principally been left to instinct. This booklet is the 1st to supply a accomplished remedy of the electron optics interested in the construction of extreme monochromatic beams and the detection of scattered electrons. It encompasses a complete 3-dimensional research of the electron optical homes of electron emission structures, monochromators and lens structures, putting specific emphasis at the tactics for matching a number of the elements. the outline is saved mathematically uncomplicated and makes a speciality of sensible facets, with many tricks for writing desktop codes to calculate and optimize electrostatic lens components.
Read Online or Download Electron energy loss spectrometers: the technology of high performance PDF
Similar crystallography books
New PDF release: Incommensurate Crystallography
The crystallography of aperiodic crystals employs many thoughts which are regularly utilized to periodic crystals. the current textual content has been written lower than the idea that the reader knows innovations like house staff symmetry, Bragg reflections and vector calculus. This assumption is stimulated by means of the popularity that readers attracted to aperiodic crystals will frequently have a historical past within the good country sciences, and by way of the truth that many books can be found that take care of the crystallography of tronslational symmetric buildings at either introductory and complicated degrees.
''This e-book presents an exceptional assessment and masses element of the state-of the-art in powder diffraction equipment. '' (Chemistry international. 2008. 5(11), p. p. sixty three) This publication offers a wide assessment of, and creation to, state of the art tools and functions of powder diffraction in learn and undefined.
Crystal Growth: Principles and Progress - download pdf or read online
This publication is the second one in a chain of clinical textbooks designed to hide advances in chosen examine fields from a uncomplicated and normal point of view, in order that basically restricted wisdom is needed to appreciate the importance of modern advancements. extra assistance for the non-specialist is supplied through the precis of abstracts partially 2, together with a number of the significant papers released within the examine box.
- Crystallography
- Surface and Defect Properties of Solids, Volume 3
- Object Recognition
- Science and Engineering of Casting Solidification
- Mineral physics & crystallography : a handbook of physical constants
- Introduction to Macromolecular Crystallography
Additional info for Electron energy loss spectrometers: the technology of high performance
Example text
45] based upon weighted cross-correlation (WCC) functions which are normalised and can be adapted to account for shifts in peak positions. The WCC procedure employs the concept of a ‘neighbourhood’, by which individual points in the profile are compared not just with exactly equivalent points in the reference profile, but also with points in the local neighbourhood, the scope of which is defined by a triangle function of specified width. Triangle functions that are narrow ignore the neighbourhood of the points in the profile, leading to strict requirements for similarity, while triangle functions that are broad lead often to uniformly high similarity values.
Taken to its extreme, cluster analysis can be made to show that each structure in a dataset is unique. At the other extreme, suitably liberal criteria will cluster all structures into a single group, without any discriminatory power. The most effective clustering level obviously lies somewhere between, and requires some level of input regarding how the results are to be interpreted. An effective procedure usually involves initial clustering into a small group of distinctly different clusters, which can then be sub-clustered to reveal more subtle differences.
4), together with a list of constraints on bond lengths, bond angles or bond torsion angles. 4 A generalised 3DSEARCH query containing three substructures (1–3) with four specified connections. ). The connections are defined between specified atoms in each substructure and can be constrained using a range of criteria (intra- or intermolecular, distance, angle, torsion). Reproduced from [32] by permission of the International Union of Crystallography criteria, such as particular interatomic distances.
Electron energy loss spectrometers: the technology of high performance by Harald Ibach, Peter W. Hawkes
by William
4.5