The Stopping and Ranges of Ions in Matter


Book Description

Stopping Cross-Sections for Energetic Ions in All Elements shows the stopping cross-sections of energetic ions in various elements in both solid and gas phase targets. The book plots chosen ion and target combinations to allow accurate linear interpolation between plots for all elemental ions and all elemental targets (atomic number 1 through 92). Existing stopping data and summaries of the experimental data are presented as well. Chapters are also devoted to electronic and nuclear stopping of ions. Physicists, researchers, physicians, nuclear scientists, radiologists, and engineers will find the book a good reference material.










Condensed Matter


Book Description

Applied Atomic Collision Physics, Volume 4: Condensed Matter deals with the fundamental knowledge of collision processes in condensed media. The book focuses on the range of applications of atomic collisions in condensed matter, extending from effects on biological systems to the characterization and modification of solids. This volume begins with the description of some aspects of the physics involved in the production of ion beams. The radiation effects in biological and chemical systems, ion scattering and atomic diffraction, x-ray fluorescence analysis, and photoelectron and Auger spectroscopy are discussed in detail. The final two chapters in the text cover two areas of ion beam materials modification: ion implantation in semiconductors and microfabrication. This text is a good reference material for physics graduate students, experimental and theoretical physicists, and chemists.




Electron Impact Ionization


Book Description

It is perhaps surprising that a process which was one of the first to be studied on an atomic scale, and a process which first received attention over seven decades ago, continues to be the object of diverse and intense research efforts. Such is the case with the (seemingly) conceptually simple and familiar mechanism of electron impact ionization of atoms, molecules, and ions. Not only has the multi-body nature of the collision given ground to theoretical effort only grudgingly, but also the variety and subtlety of processes contributing to ionization have helped insure that progress has come only with commensurate work: no pain - no gain. Modern experimental methods have made it possible to effectively measure and explore threshold laws, differential cross sections, partial cross sections, inner-shell ionization, and the ionization of unstable species such as radicals and ions. In most instances the availability of experimental data has provided impetus and guidance for further theoretical progress.




Treatise on Heavy-Ion Science


Book Description

For 75 years the stopping of energetic ions in matter has been a subject of great theoretical and experimental interest. The theoretical treatment of the stopping of ions in matter is largely due to the work of Bohr, 1-3 Bethe,4-6 Bloch,7. s and Lindhard,9-12 and it has been reviewed by Bohr,3 Fano,13 17 20 Jackson,14 Sigmund,15 Ahlen,16 and Ziegler et al. - Soon after the discovery of energetic particle emission from radioactive materials, there was interest in how these corpuscles were slowed down in traversing matter. In 1900, Marie Curie stated 21 the hypothesis that Hies rayons alpha sont des projectiles materiels susceptibles de perdre de leur vitesse en travers ant la matiere." Early attempts to evaluate this were incon clusive for there was not yet an accurate proposed model of the atom. Enough experimental evidence was collected in the next decade to make stopping power theory one of the central concerns of those attempting to develop an atomic model. J.J. Thomson, director of the prestigious Cavendish Laboratory, and Niels Bohr, a fresh postdoctoral scientist at Rutherford's Manchester Laboratory, both published almost simultaneously22. 23 an analysis of the stopping of charged particles by matter, and each contained many of their divergent ideas on the model of an atom. Thomson ignored in his paper the Rutherford alpha-particle scattering 24 experiment of a year before. But the nuclear atom with a heavy positively 25 charged core was the basis of Bohr's ideas.




Superheavy Elements


Book Description

Superheavy Elements covers the proceedings of the International Symposium on Superheavy Elements, held in Lubbock, Texas on March 9-11, 1978. The book focuses on the compositions, reactions, transformations, and methodologies involved in the research on superheavy elements (SHE). The selection first gives an overview of the history and perspectives of the search for SHE; attempts to produce SHE in reactions between heavy nuclei; and searches for SHE at the superhilac. The publication also examines the experimental prospects for the synthesis and detection of SHE, including alternate production modes for SHE and detection methods in the search for SHE. The book looks at the experimental insights into the production of SHE using heavy ion reactions and observations of anomalous long-range alpha particles and their potential connection to superheavy matter. The publication also reviews the calculations for penetrability and the predictions of the spontaneous fission half-lives of SHE; feasibility studies of thermonuclear neutron capture synthesis of SHE; muonic transitions and X-ray spectra from SHE. Topics include transition energy and potential and quantum-electrodynamical corrections. The text is a dependable source of data for readers interested in superheavy elements.




Electron Ionization


Book Description




Accelerators


Book Description

Accelerators




Ion Implantation Techniques


Book Description

In recent years, ion implantation has developed into the major doping technique for integrated circuits. Several series of conferences have dealt with the application of ion implantation to semiconductors and other materials (Thousand Oaks 1970, Garmisch-Partenkirchen 1971, Osaka 1974, Warwick 1975, Boulder 1976, Budapest 1978, and Albany 1980). Another series of conferences was devoted more to implantation equipment and tech niques (Salford 1977, Trento 1978, and Kingston 1980). In connection with the Third International Conference on Ion Implantation: Equipment and Tech niques, held at Queen's University, ' Kingston, Ontario, Canada, July 8-11, 1980, a two-day instructional program was organized parallel to an implan tation conference for the first time. This implantation school concentra ted on aspects of implantation-equipment design. This book contains all lectures presented at the International Ion Implantation School organized in connection with the Fourth International Conference on Ion Implantation: Equipment and Techniques, held at the Convention Center, Berchtesgaden, Germany, September 13-17, 1982. In con trast to the first .school, the main emphasis in thiS school was placed on practical aspects of implanter operation and application. In three chap ters, various machine aspects of ion implantation (general concepts, ion sources, safety, calibration, dOSimetry), range distributions (stopping power, range profiles), and measuring techniques (electrical and nonelec tri ca 1 measu ri ng techni ques, annea 1 i ng) are di scussed. In the appendi x, a review of the state of the art in modern implantation equipment is given.