Download or read book Etude et r alisation d une source d ions B et Li multicharg s written by Pierre Bouchaib and published by . This book was released on 1974 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book tude et r alisation d une source d ions B et Li multicharg s written by Pierre Bouchaïb and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ETUDE CONCEPTION ET REALISATION D UNE SOURCE D IONS MICRO EBIT written by HICHAM.. KHODJA and published by . This book was released on 1993 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES SOURCES D'IONS MULTICHARGES DE TYPE EBIS FONCTIONNANT A L'HEURE ACTUELLE FONT TOUTES APPEL AUX TECHNIQUES CRYOGENIQUES POUR DES RAISONS DE POMPAGE ET DE COMPRESSION MAGNETIQUE; LES COUTS DE FABRICATION ET D'UTILISATION SONT PAR CONSEQUENT RELATIVEMENT ELEVES. IL EXISTE NEANMOINS UN DOMAINE OU LES SOURCES DE TYPE EBIS PEUVENT SE PASSER DES TECHNIQUES CRYOGENIQUES, CELUI DES FAIBLES FACTEURS DE COMPRESSION ET FORTS COURANTS. DANS CETTE OPTIQUE, UNE SOURCE BAPTISEE MICRO-EBIT, DERIVEE D'UN KLYSTRON AMPLIFICATEUR, A ETE CONCUE ET REALISEE AFIN DE VERIFIER S'IL EST POSSIBLE DE PRODUIRE DES IONS MULTICHARGES AVEC LES PARAMERES DEFINIS CI-DESSUS. CETTE SOURCE NE DISPOSE PAS DE SYSTEME D'EXTRACTION; LES IONS SONT DETECTES IN SITU PAR L'INTERMEDIAIRE DES RAYONS X EMIS LORS DE LEURS INTERACTIONS AVEC LE FAISCEAU ELECTRONIQUE. APRES UN INVENTAIRE DES SOURCES EBIS ET EBIT FONCTIONNANT DANS LE MONDE, NOUS DECRIVONS LA PHYSIQUE ET LA TECHNOLOGIE DE CE TYPE DE SOURCE, DONT LE PRINCIPE DE FONCTIONNEMENT REPOSE SUR L'IONISATION PAS-A-PAS D'IONS PIEGES PAR LA CHARGE D'ESPACE DU FAISCEAU ELECTRONIQUE. DANS UNE SECONDE PARTIE, NOUS DECRIVONS LE DISPOSITIF MICRO-EBIT, DE SA CONCEPTION AUX PREMIERS ESSAIS DE TRANSPORT DE FAISCEAU. LES PERFORMANCES PREVUES DE LA SOURCE PAR DES SIMULATIONS NUMERIQUES ET DES ESSAIS DE VIDE SONT PRECISEES: DENSITE DE COURANT DE L'ORDRE DE 100 A/CM#2 POUR UN FAISCEAU DE 1 AMPERE-10 KEV SE PROPAGEANT DANS UN VIDE DE L'ORDRE DE 1.10##1#0 MBAR, TEMPS DE CONFINEMENT DE 1 SECONDE POUR PRODUIRE DE L'ARGON HELIUMOIDE. LA DERNIERE PARTIE EST CONSACREE AUX RESULTATS EXPERIMENTAUX QUI SONT ANALYSES APRES DESCRIPTION DES DIAGNOSTICS AUX RAYONS X QUI ONT ETE EMPLOYES. LA SOURCE MICRO-EBIT A PERMIS DE PRODUIRE DIVERS IONS, DONT DE L'ARGON 16+, AVEC LE TEMPS DE CONFINEMENT PREVU
Download or read book INIS Atomindex written by and published by . This book was released on 1975 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quadrupole Ion Trap Mass Spectrometry written by Raymond E. March and published by Wiley-Interscience. This book was released on 2005-09-12 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: A definitive reference, completely updated Published in 1989, the First Edition of this book, originally entitled Quadrupole Storage Mass Spectrometry, quickly became the definitive reference in analytical laboratories worldwide. Revised to reflect scientific and technological advances and new applications in the field, the Second Edition includes new chapters covering: * New ion trap instruments of high sensitivity * Peptide analysis by liquid chromatography/ion trap tandem mass spectrometry * Analytical aspects of ion trap mass spectrometry combined with gas chromatography * Simulation of ion trajectories in the ion trap One additional chapter discusses the Rosetta mission, a "comet chaser" that was sent on a ten-year journey in 2004 to study the comet Churyumov-Gerasimenko using, among other instruments, a GC/MS system incorporating a specially designed ion trap mass spectrometer. This comprehensive reference also includes discussions of the history of the quadrupole ion trap, the theory of quadrupole mass spectrometry, the dynamics of ion-trapping chemistry in the quadrupole ion trap, the cylindrical ion trap, miniature traps, and linear ion traps. Complete with conclusions and references, this primer effectively encapsulates the body of knowledge on quadrupole ion trap mass spectrometry. With its concise descriptions of the theory of ion motion and the principles of operation, Quadrupole Ion Trap Mass Spectrometry, Second Edition is ideal for new users of quadrupole devices, as well as for scientists, researchers, and graduate and post-doctoral students working in analytical laboratories.
Download or read book Defects in Semiconductors written by and published by Academic Press. This book was released on 2015-06-08 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume, number 91 in the Semiconductor and Semimetals series, focuses on defects in semiconductors. Defects in semiconductors help to explain several phenomena, from diffusion to getter, and to draw theories on materials' behavior in response to electrical or mechanical fields. The volume includes chapters focusing specifically on electron and proton irradiation of silicon, point defects in zinc oxide and gallium nitride, ion implantation defects and shallow junctions in silicon and germanium, and much more. It will help support students and scientists in their experimental and theoretical paths. - Expert contributors - Reviews of the most important recent literature - Clear illustrations - A broad view, including examination of defects in different semiconductors
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1974 with total page 1024 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integrated 60GHz RF Beamforming in CMOS written by Yikun Yu and published by Springer Science & Business Media. This book was released on 2011-01-06 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrated 60GHz RF Beamforming in CMOS describes new concepts and design techniques that can be used for 60GHz phased array systems. First, general trends and challenges in low-cost high data-rate 60GHz wireless system are studied, and the phased array technique is introduced to improve the system performance. Second, the system requirements of phase shifters are analyzed, and different phased array architectures are compared. Third, the design and implementation of 60GHz passive and active phase shifters in a CMOS technology are presented. Fourth, the integration of 60GHz phase shifters with other key building blocks such as low noise amplifiers and power amplifiers are described in detail. Finally, this book describes the integration of a 60GHz CMOS amplifier and an antenna in a printed circuit-board (PCB) package.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1990-11 with total page 1596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Strongly Coupled Coulomb Systems written by Gabor J. Kalman and published by Springer Science & Business Media. This book was released on 2006-03-11 with total page 699 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Conference on Strongly Coupled Coulomb Systems was held on the campus of Boston College in Newton, Massachusetts, August 3–10, 1997. Although this conference was the first under a new name, it was the continuation of a series of international meetings on strongly coupled plasmas and other Coulomb systems that started with the NATO Summer Institute on Strongly Coupled Plasmas, almost exactly twenty years prior to this conference, in July of 1977 in Orleans la Source, France. Over the intervening period the field of strongly coupled plasmas has developed vigorously. In the 1977 meeting the emphasis was on computer (Monte Carlo and molecular dynamics) simulations which provided, for the first time, insight into the rich and new physics of strongly coupled fully ionizedplasmas. While theorists scrambled to provide a theoretical underpinning for these results, there was also a dearth of real experimental input to reinforce the computer simulations. Over the past few years this situation has changed drastically and a variety of direct experiments on classical, pure, strongly correlated plasma systems (charged particle traps, dusty plasmas, electrons on the surface of liquid helium, etc. ) have become available. Even more importantly, entire new area of experimental interest in condensed matter physics have opened up through developments in nano-technology and the fabrication of low-dimensional systems, where the physical behavior, in many ways, is similar to that in classical plasmas. Strongly coupled plasma physics has always been an interdisciplinaryactivity.
Download or read book Characterisation and Control of Defects in Semiconductors written by Filip Tuomisto and published by Materials, Circuits and Device. This book was released on 2019-10-27 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an up-to-date review of the experimental and theoretical methods used for studying defects in semiconductors, this book focuses on recent developments driven by the requirements of new materials, including nitrides, oxide semiconductors and 2-D semiconductors.
Download or read book Hydrogen in Semiconductors II written by and published by Academic Press. This book was released on 1999-05-05 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its inception in 1966, the series of numbered volumes known as Semiconductors and Semimetals has distinguished itself through the careful selection of well-known authors, editors, and contributors. The "Willardson and Beer" Series, as it is widely known, has succeeded in publishing numerous landmark volumes and chapters. Not only did many of these volumes make an impact at the time of their publication, but they continue to be well-cited years after their original release. Recently, Professor Eicke R. Weber of the University of California at Berkeley joined as a co-editor of the series. Professor Weber, a well-known expert in the field of semiconductor materials, will further contribute to continuing the series' tradition of publishing timely, highly relevant, and long-impacting volumes. Some of the recent volumes, such as Hydrogen in Semiconductors, Imperfections in III/V Materials, Epitaxial Microstructures, High-Speed Heterostructure Devices, Oxygen in Silicon, and others promise that this tradition will be maintained and even expanded. Reflecting the truly interdisciplinary nature of the field that the series covers, the volumes in Semiconductors and Semimetals have been and will continue to be of great interest to physicists, chemists, materials scientists, and device engineers in modern industry. - Provides the most in-depth coverage of hydrogen in silicon available in a single source - Includes an extensive chapter on the neutralization of defects in III*b1V semiconductors - Combines both experimental and theoretical studies to form a comprehensive reference
Download or read book DX Centers written by Elias Munoz Merino and published by Trans Tech Publications Ltd. This book was released on 1994-02-02 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last 25 years, the behavior of donors in III-V alloys has been the subject of a very extensive research effort. The research emphasis on AlGaAs compounds is motivated by the industrial importance of AlGaAs/GaAs heterojunction based devices. As seeing it now, "the DX center problem", the behavior of donors in III-V alloys, has shown to be unexpectedly difficult to understand. To determine the microscopic nature of the DX center is still a challenging problem.
Download or read book Potato Genetics written by J. E. Bradshaw and published by Cabi. This book was released on 1994 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Origins, species and cytology. Theory and methods of genetical analysis. Cellular and molecular genetics. Environmental stress, morphology and quality. Inheritance of resistance to pests and diseases. Potato breeding.
Download or read book The Si SiO2 System written by P. Balk and published by Elsevier Publishing Company. This book was released on 1988 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Si-SiO 2 system has been the subject of concentrated research for over 25 years, particularly because of its key role in silicon integrated circuits. However, only a few comprehensive treatises on this field have been published in recent years. This book focuses on the materials science and technology aspects of the system. Its aim is to give a comprehensive overview of the topic, including an extensive list of references giving easy access to the literature. After an introductory chapter which reviews the Si-SiO 2 system from the perspective of other semiconductor-insulator combinations of technical interest, the technology of oxide preparation is discussed. Fundamental questions regarding the structure and chemistry of the interfacial region are then addressed. Two chapters are concerned with system properties: one deals with the physico-chemical, electrical and device-related characteristics and the way these are affected by the technology of oxide preparation; a second chapter focuses on point defects and charge trapping. The book concludes with a broad review of the techniques available for electrical characterization of the system, including the physical background.
Download or read book Semiconductor Surfaces and Interfaces written by Friedhelm Bechstedt and published by . This book was released on 1988 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Second Symposium on Defects in Silicon written by W. Murray Bullis and published by . This book was released on 1991 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
