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Electron Microscopy
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Author:
Ahmed ZewailNumber Of Downloads:
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Language:
English
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11.60 MB
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Natural ScienceSection:
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50
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excellent
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Book Description
"Electron Microscopy" is a comprehensive guide to the principles and applications of electron microscopy in various fields of science. The book provides an overview of the development of electron microscopy and the different types of electron microscopes, including transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The authors discuss the basic principles of electron optics and imaging, as well as the preparation of specimens for electron microscopy.
The book covers a wide range of topics, from the study of biological specimens, such as cells and tissues, to the investigation of materials and their structures. The authors also discuss the use of electron microscopy in the fields of metallurgy, geology, and nanotechnology, among others.
One of the main strengths of electron microscopy is its ability to provide high-resolution images of specimens, allowing researchers to study the details of their structure and composition at the nanometer scale. The book explains the different imaging modes and techniques used in electron microscopy, including dark-field and bright-field imaging, diffraction and crystallography, and high-resolution imaging.
The authors also provide a comprehensive overview of the various sample preparation techniques used in electron microscopy, including fixation, embedding, sectioning, and staining. They discuss the advantages and disadvantages of different techniques, as well as the challenges involved in preparing specimens for electron microscopy.
Overall, "Electron Microscopy" is an essential reference for researchers and students in a wide range of fields who are interested in the principles and applications of electron microscopy. The book provides a clear and concise overview of the different types of electron microscopes, the basic principles of electron optics and imaging, and the sample preparation techniques used in electron microscopy. It is a valuable resource for anyone seeking to understand the complex world of electron microscopy.
Ahmed Zewail
Ahmed Zewail (1946-2016) was an Egyptian-American scientist who won the Nobel Prize in Chemistry in 1999 for his work in femtochemistry, a field he helped create. Zewail was born in Damanhur, Egypt, and earned his undergraduate degree from Alexandria University before completing his graduate studies at the University of Pennsylvania and the University of California, Berkeley.
Zewail's groundbreaking work in femtochemistry involved studying chemical reactions at the timescale of femtoseconds, or one quadrillionth of a second. Using ultrafast lasers, Zewail was able to capture images of atoms and molecules in motion during chemical reactions, leading to a greater understanding of the dynamics and mechanisms of chemical reactions.
In addition to his work in femtochemistry, Zewail was also a strong advocate for science education and science diplomacy. He founded the Zewail City of Science and Technology in Egypt, a research and education center focused on science and technology, and was a member of President Obama's Council of Advisors on Science and Technology.
Zewail received numerous awards and honors throughout his career, including the National Medal of Science in 1993 and the Order of the Nile, Egypt's highest state honor, in 2008. He was also a fellow of many scientific societies, including the American Association for the Advancement of Science and the Royal Society of Chemistry.
Zewail passed away in 2016 at the age of 70. His contributions to the field of femtochemistry and his dedication to science education and diplomacy continue to have a lasting impact on the scientific community.
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