Author: Publisher:
ISBN:
Category :
Languages : fr
Pages : 0
Book Description
Recherches sur les propriétés diélectriques des gaz ionisés et la décharge en haute fréquence
Author: Recherches sur les propriétés diélectriques des gaz ionisés et la décharge en haute fréquence
Author: H. GuttonRecherches sur les propriétés diélectriques des gaz ionisés et la décharge en haute fréquence, par M. H. Gutton...
Author: H. GuttonProbing the Sky with Radio Waves
Author: Chen-Pang YeangPublisher: University of Chicago Press
ISBN: 022603481X
Category : Science
Languages : en
Pages : 378
Book Description
By the late nineteenth century, engineers and experimental scientists generally knew how radio waves behaved, and by 1901 scientists were able to manipulate them to transmit messages across long distances. What no one could understand, however, was why radio waves followed the curvature of the Earth. Theorists puzzled over this for nearly twenty years before physicists confirmed the zig-zag theory, a solution that led to the discovery of a layer in the Earth’s upper atmosphere that bounces radio waves earthward—the ionosphere. In Probing the Sky with Radio Waves, Chen-Pang Yeang documents this monumental discovery and the advances in radio ionospheric propagation research that occurred in its aftermath. Yeang illustrates how the discovery of the ionosphere transformed atmospheric science from what had been primarily an observational endeavor into an experimental science. It also gave researchers a host of new theories, experiments, and instruments with which to better understand the atmosphere’s constitution, the origin of atmospheric electricity, and how the sun and geomagnetism shape the Earth’s atmosphere. This book will be warmly welcomed by scholars of astronomy, atmospheric science, geoscience, military and institutional history, and the history and philosophy of science and technology, as well as by radio amateurs and electrical engineers interested in historical perspectives on their craft.
Multipactor in Accelerating Cavities
Author: Valery D. ShemelinPublisher: Springer Nature
ISBN: 3030481980
Category : Science
Languages : en
Pages : 145
Book Description
This book is written by two world-recognized experts in radio frequency (RF) systems for particle accelerators and is based on many years of experience in dealing with the multipactor phenomenon. The authors introduce and review multipactor in RF cavities for scientists and engineers working in the field of accelerator physics and technology. The multipactor phenomenon of unintended electron avalanches occurs in the RF cavities commonly and quite often is a performance-limiting factor. The book starts with an Introductory Overview which contains historical observations and brief description of most common aspects of the phenomenon. Part I deals with the multipactor in a flat gap. It starts with description of the dynamics of electrons, derivation of the stability condition and analyzing influence of several factors on the multipactor. Then, the initial considerations are extended to derive a generalized phase stability and finally a particular case, called ping-pong multipacting, is considered. The part one is concluded with a brief review of computer codes used in multipactor simulations. Part II is dedicated to the multipactor in crossed RF fields, the typical situation in accelerating cavities. Two cases of MP are considered: a two-point multipactor near the cavity equator in elliptical cavities and a one-point multipactor. Part III describes optimization of the cavity shapes geared toward designing multipactor-free structures. The book will serve as an importance reference on multipactor for those involved in developing and operating radio frequency cavities for particle accelerators.
Proceedings of the Indian Science Congress
Author: Indian Science Congress AssociationPublisher:
ISBN:
Category : Indian Science Congress
Languages : en
Pages : 554
Book Description
Proceedings of the Institute of Radio Engineers
Author: Institute of Radio EngineersPublisher:
ISBN:
Category : Electronics
Languages : en
Pages : 1204
Book Description
Gaz ionisés
Author: Eugen BădărăuPublisher:
ISBN:
Category : Electric discharges through gases
Languages : fr
Pages : 342
Book Description
Recherches sur les gaz ionisés
Author: Paul LangevinPublisher:
ISBN:
Category : History
Languages : fr
Pages : 224
Book Description
Author: