The Physical Basis Of Atomic Frequency Standards
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| Author | : A. S. Risley |
| Publisher | : |
| Total Pages | : 64 |
| Release | : 1971 |
| Genre | : Atomic frequency standards |
| ISBN | : |
A tutorial discussion of the physical basis of atomic frequency standards is given.These principles are then related to the conditions under which an atom can be used as the working substance of a stable and accurate frequency standard.The three primary examples of atomic frequency standards--the hydrogen maser, the cesium beam, and the rubidium gas cell--are then discussed in terms of these principles and conditions.The functions of the fundamental parts of each device become apparent through this development.(Author).
| Author | : United States. National Bureau of Standards |
| Publisher | : |
| Total Pages | : 75 |
| Release | : 1967 |
| Genre | : |
| ISBN | : |
| Author | : A. S. Risley |
| Publisher | : |
| Total Pages | : |
| Release | : 1969 |
| Genre | : Atomic frequency standards |
| ISBN | : |
| Author | : A. S. Risley |
| Publisher | : Forgotten Books |
| Total Pages | : 68 |
| Release | : 2018-09-20 |
| Genre | : Science |
| ISBN | : 9781391655703 |
Excerpt from The Physical Basis of Atomic Frequency Standards Today, the atomistic character of matter is taken for granted by almost everyone who has been raised in a technological society. And yet, for 2200 years (from the time of Democritus), a majority of scientists, partly on theological grounds, actively rejected the idea. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
| Author | : |
| Publisher | : |
| Total Pages | : 54 |
| Release | : 1971 |
| Genre | : |
| ISBN | : |
| Author | : A. S. Risley |
| Publisher | : |
| Total Pages | : 64 |
| Release | : 1971 |
| Genre | : Atomic frequency standards |
| ISBN | : |
A tutorial discussion of the physical basis of atomic frequency standards is given.These principles are then related to the conditions under which an atom can be used as the working substance of a stable and accurate frequency standard.The three primary examples of atomic frequency standards--the hydrogen maser, the cesium beam, and the rubidium gas cell--are then discussed in terms of these principles and conditions.The functions of the fundamental parts of each device become apparent through this development.(Author).
| Author | : Jacques Vanier |
| Publisher | : CRC Press |
| Total Pages | : 478 |
| Release | : 2015-08-05 |
| Genre | : Science |
| ISBN | : 1466576979 |
This volume covers advances in atomic frequency standards (atomic clocks) from the last several decades. It explains the use of techniques, such as laser optical pumping, coherent population trapping, laser cooling, and electromagnetic and optical trapping, in the implementation of classical microwave and optical atomic frequency standards. The authors describe the basic physics behind the operation of atomic clocks, explore new frequency standards that provide better stability and accuracy than conventional standards, and illustrate the application of atomic clocks in various areas.
| Author | : Fritz Riehle |
| Publisher | : John Wiley & Sons |
| Total Pages | : 540 |
| Release | : 2006-03-06 |
| Genre | : Science |
| ISBN | : 3527605959 |
Of all measurement units, frequency is the one that may be determined with the highest degree of accuracy. It equally allows precise measurements of other physical and technical quantities, whenever they can be measured in terms of frequency. This volume covers the central methods and techniques relevant for frequency standards developed in physics, electronics, quantum electronics, and statistics. After a review of the basic principles, the book looks at the realisation of commonly used components. It then continues with the description and characterisation of important frequency standards from atomic clocks, to frequency stabilised lasers. The whole is rounded of with a discussion of topical applications in engineering, telecommunications, and metrology.
| Author | : Jacques Vanier |
| Publisher | : Bristol : A. Hilger |
| Total Pages | : 984 |
| Release | : 1989 |
| Genre | : Atomic frequency standards |
| ISBN | : |
Atomic frequency standards are very stable and accurate frequency sources. They are now used, for example, in high-speed communication, in navigation systems and in time-keeping. This study, which examines present knowledge regarding the operation of such devices, is designed to be used by the newcomer to the field as well as by the experienced researcher.
| Author | : J Vanier |
| Publisher | : CRC Press |
| Total Pages | : 296 |
| Release | : 1989-01-01 |
| Genre | : Science |
| ISBN | : 9780852744345 |
Atomic frequency standards provide the most accurate measurements in physics. The Quantum Physics of Atomic Frequency Standards is an extensive survey of the subject covering both theoretical and experimental aspects together with applications. As an accessible and essential reference it will be invaluable to experienced researchers and beginners alike. The first volume begins with a quantum mechanics treatment of the interaction of static fields and electromagnetic radiation with atoms and molecules. Each of the important phenomena - noise, relaxation, broadening and frequency shifts - is treated in detail and optical pumping and population inversion are explained. With all the background material now in place the major part of these volumes is devoted to a theoretical analysis of the operation of the numerous atomic frequency standards that are either in use, are being studied or have been proposed. * Caesium atomic beam frequency standards * Hydrogen maser * Rubidium frequency standards * Mercury ion trap * Frequency stabilized lasers In the final chapter the authors discuss the impact of atomic frequency standards on navigation and communication systems, in industry, in new technology and on fundamental research.
