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	Título: 4d Electron Microscopy. Imaging In Space And Time.
	Autor: Zewail, Ahmed H/ Thomas, John M	Precio: $672.00
	Editorial: Imperial College Press	Año: 2009
	Tema: Fisica, Quimica, Biologia	Edición: 1ª
	Sinopsis	ISBN: 9781848164000
	The modern electron microscope, as a result of recent revolutionary developments and many evolutionary ones, now yields a wealth of quantitative knowledge pertaining to structure, dynamics, and function barely matched by any other single scientific instrument. It is also poised to contribute much new spatially-resolved and time-resolved insights of central importance in the exploration of most aspects of condensed matter, ranging from the physical to the biological sciences. Whereas in all conventional EM methods, imaging, diffraction, and chemical analyses have been conducted in a static _ time-integrated _ manner, now it has become possible to unite the time domain with the spatial one, thereby creating four-dimensional (4D) electron microscopy. This advance is based on the fundamental concept of timed, coherent single-electron packets, or electron pulses, which are liberated with femtosecond durations. Structural phase transitions, mechanical deformations, and the embryonic stages of melting and crystallization are examples of phenomena that can now be imaged in unprecedented structural detail with high spatial resolution, and ten orders of magnitude as fast as hitherto. No monograph in existence attempts to cover the revolutionary dimensions that EM in its various modes of operation nowadays makes possible. The authors of this book chart these developments, and also compare the merits of coherent electron waves with those of synchrotron radiation. They judge it prudent to recall some important basic procedural and theoretical aspects of imaging and diffraction so that the reader may better comprehend the significance of the new vistas and applications now afoot. This book is not a vade mecum _ numerous other texts are available for the practitioner for that purpose. It is instead an in-depth exposé of the paradigm concepts and the developed techniques that can now be executed to gain new knowledge in the entire domain of biological and physical science, and in the four dimensions of space and time. Contents: Historical Perspectives: From Camera Obscura to 4D Imaging Concepts of Coherence: Optics, Diffraction, and Imaging From 2D to 3D Structural Imaging: Salient Concepts Applications of 2D and 3D Imaging and Related Techniques 4D Electron Imaging in Space and Time: Principles 4D Ultrafast Electron Imaging: Developments and Applications The Electron Microscope and the Synchrotron: A Comparison 4D Visualization: Past, Present, and Future

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