Radiation Acoustics

Radiation acoustics is a developing field lying at the intersection of acoustics, high-energy physics, nuclear physics, and condensed matter physics. Radiation Acoustics is among the first books to address this promising field of study, and the first to collect all of the most significant results achieved since research in this area began in earnest in the 1970s. The book begins by reviewing the data on elementary particles, absorption of penetrating radiation in a substance, and the mechanisms of acoustic radiation excitation. The next seven chapters present a theoretical treatment of thermoradiation sound generation in condensed media under the action of modulated penetrating radiation and radiation pulses. The author explores particular features of the acoustic fields of moving thermoradiation sound sources, sound excitation by single high-energy particles, and the efficiency and optimal conditions of thermoradiation sound generation. Experimental results follow the theoretical discussions, and these clearly demonstrate the validity of the thermoradiation theory. The book concludes with discussions on applications, including the large-scale DUMAND and GENIUS projects now on the horizon. Radiation acoustics holds enormous potential for applications in areas such as microelectronics, geophysics, and astrophysics. This book offers a unique opportunity to benefit from the approach and extensive experience of author Leonid N. Lyamshev, who in this, his last book, shows how he left an indelible mark on the world of acoustics.

In this volume, the author explains a generalized theory of radiation acoustic phenomena. This concise and comprehensive introduction to the field of radiation acoustics considers the nonlinear and non-thermal mechanisms of sound generation as well as the fundamental equations of radiation acoustics. The author also explores topics beyond theory and postulates some applications of radiation acoustic effects. Introduction to Radiation Acoustics is ideal for graduate students and specialists in the fields of accelerator techniques, acoustics, radiotherapeutics, and elementary particle physics.

In this volume, the author explains a generalized theory of radiation acoustic phenomena. This concise and comprehensive introduction to the field of radiation acoustics considers the nonlinear and non-thermal mechanisms of sound generation as well as the fundamental equations of radiation acoustics. The author also explores topics beyond theory an

Interest in acoustics continues to increase. Although this branch of science was concerned primarily with the promotion of qualitative and quantitative sound transmission until a few decades ago, emphasis is currently placed also on the limitation of sound nuisance and, by extension, the setting of boundaries for permissible sound levels in places \vhere people are found. This last aspect in particular is exercising more and more influence on the design of buildings and machines, and in town and country planning. In addition, sound vibrations, because of their physical characteristics, are being used increasingly in disparate disciplines such as navigation, medical investigation and non destructive materials research. The flood of publications resulting from this increased interest in acoustics has led to a growing number of people being confronted with terminology which had until quite re cently only been used by a relatively small group of specialists and had remained largely unknown as a result. This four language dictionary, based on 'W. Reichardt, Technische Akustik; Berlin 1979', has been compiled to make not only this literature but also the nomenclature of equipment and instructions for their use accessible to the specialist and the interested layman.

Underwater Scattering and Radiation describes the relevant theoretical foundations of underwater scattering and radiation. Acoustic scattering from elastic solids is discussed, and variational formulations in acoustic radiation and scattering are presented. Surface waves and quasi-cylindrical modes are also explored, along with the Helmholtz-Kirchhoff integral corollaries. Comprised of two chapters, this volume begins with a comprehensive account of scattering by elastic objects, focusing on the classic idealized shapes of spheres and infinite cylinders. The reader is introduced to important concepts such as normal modes, the S-matrix, and the T-matrix as well as resonances, whispering gallery modes, Franz modes, and Stoneley waves. Subsequent sections describe methods for treating scattering by elastic bodies of more general shapes. The T-matrix formalism is discussed and then applied to spheroidal scatterers and finite cylinders. The second chapter analyzes how variational principles can be used in acoustics, with the choice of topics directed toward applications to underwater acoustic radiation and scattering. This book will be of interest to physicists.