Download or read book Production and Analysis of Multiply charged Ions in the Cornell Election Beam Ion Source written by Ebrahim Ghanbari and published by . This book was released on 1984 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Investigation of Ion Trapping and Heating in the Cornell Electron Beam Ion Source written by Edward Neil Beebe and published by . This book was released on 1990 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Physics of Multiply and Highly Charged Ions written by F.J. Currell and published by Springer Science & Business Media. This book was released on 2003-10-31 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highly charged ions are the most chemically reactive species known to mankind. This reactivity is due to the extremely large potential energy they posses. This textbook deals with the wide range of interactions which occur when such ions interact with other forms of matter, especially solid surfaces and gasses. Particular emphasis is placed on situations where the kinetic energy associated with the interactions is small so that the effects of the high potential energy are most apparent. Experimental and theoretical techniques of investigation are covered in addition to the findings they produce. The treatment aims to be instructive to the beginner while leading on to a level where the newest findings are reviewed. As such the text is suitable for final year undergraduates, postgraduates or experienced researchers.

Download or read book Handbook of Ion Sources written by Bernhard Wolf and published by CRC Press. This book was released on 2017-07-12 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Ion Sources delivers the data needed for daily work with ion sources. It also gives information for the selection of a suitable ion source and ion production method for a specific application. The Handbook concentrates on practical aspects and introduces the principle function of ion sources. The basic plasma parameters are defined and discussed. The working principles of various ion sources are explained, and examples of each type of ion source are presented with their operational data. Tables of ion current for various elements and charge states summarize the performance of different ion sources. The problems related to the production of ions of non-gaseous elements are detailed, and data on useful materials for evaporation and ion source construction are summarized. Additional chapters are dedicated to extraction and beam formation, ion beam diagnosis, ion source electronics, and computer codes for extraction, acceleration, and beam transport. Emittance and brilliance are described and space charge effects and neutralization discussed. Various methods for the measurement of current, profile, emittance, and time structure are presented and compared. Intensity limits for these methods are provided for different ion energies. Typical problems related to the operation of ion source plasmas are discussed and practical examples of circuits are given. The influence of high voltage on ion source electronics and possibilities for circuit protection are covered. The generation of microwaves and various microwave equipment are described and special problems related to microwave operation are summarized. The Handbook of Ion Sources is a valuable reference on the subject, of benefit to practitioners and graduate students interested in accelerators, ion implantation, and ion beam techniques.

Download or read book Multiply Charged Ions Excitation and Ionization by Electron Impact written by T. E. Sharp and published by . This book was released on 1974 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: A crossed-beam study of the electron impact excitation and ionization of N(+4) is described. A beam of N(+4) ions with MeV energy is produced in a Van de Graaff accelerator coupled with a gas stripper and separated from other charge states by magnetic and electrostatic analysis. The ion beam is crossed with a variable energy electron beam in a well-defined geometry. Radiation from the excited ions is observed with a photomultiplier downstream from the interaction region. The ions promoted to higher charge states are separated from the primary beam electrostatically and detected with a silicon surface-barrier detector. Chopping of both ion and electron beams is employed. Results are presented for the N(+4) transition at 1240 A in the collision energy range 130 - 400 eV. Substantial reduction in the N(+5) background was achieved but variations in this background precluded measurement of the ionization cross section of N(+4).

Download or read book Investigation of Multi charged Heavy Ion Production in an Electron Beam Ion Source written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of multi-charged heavy ions produced in an Electron Beam Ion Source (EBIS) were carried out with a test model ion source 20 cm in length. This test model utilized an electron gun placed external to the bore of the focusing solenoid in order to achieve electrostatically focussed electron beams and isolation of the vacuum surrounding the electron gun from the vacuum in the ionization region within the solenoid bore. An ultrahigh vacuum system utilizing liquid nitrogen (77°K) cryopumping was used to achieve the low pressures needed in the ionization region for the operation of this ion source. Several technical problems limited the operation of this test model and prevented a thorough investigation of the ionization processes in the ion source, but the experimental results have shown qualitative agreement with the theoretical calculations for the operation of this type of ion source. Even with the problems of an insufficient vacuum and electron beam focussing field, measurable currents of C/sup +5/ and A/sup +8/ ions were produced. The present experimental results suggest that the approach taken in this work of using an external electron gun and cryopumping in the EBIS to achieve the large electron beam current density and low vacuum necessary for successful operation is a viable one. Such an ion source can be used to create highly-charged heavy ions for injection into a cyclotron or other type of particle accelerator.

Download or read book Electron Impact Ion Sources for Charged Heavy Ions written by Grigory D. Shirkov and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a comprehensive guide to the construction, operation, diagnostics, and applications of electron impact ion sources for the production of highly charged ions. Beside the treatment of elementary processes and ion storage in electron impact ion sources, characteristic diagnostic methods for these sources are described which are related to plasma diagnostics. Related to atomic and solid state physics the use of electron impact ion sources is discussed. Diese Monographie behandelt den Aufbau, den Betrieb, die Diagnostik und Anwendungen von Elektronenstoß-Ionenquellen zur Erzeugung hochgeladener Ionen. Neben der Behandlung von Basisprozessen in den Quellen erfolgt eine umfangreiche Beschreibung von Diagnostikmethoden mit Relevanz zur Ionenquellen- und Plasmadiagnostik.

Download or read book Trapping Highly Charged Ions written by John Gillaspy and published by Nova Publishers. This book was released on 2001 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides and elementary introduction to the field of trapping highly charged ions. The first group of chapters is intended to describe the various sorts of highly charged ion traps: EBIT, EBIS, ECR, Storage Rings and various speciality traps. The authors focus on their own ion trap facilities in order to teach by example. The chapters range in scope from comprehensive reviews to brief introductions. The second group of chapters is intended to give a flavour of the various sorts of scientific research which are presently being carried out with traps for highly charged ions. These chapters not only inform, but also stimulate newcomers to think up fresh ideas. The articles in this second group generally fall into one of three broad categories: atomic structure experiments, ion-surface interactions and precision mass spectrometry. The third group of chapters is intended to deal with theory and spectroscopic analysis. It provides some of the background material necessary to make sense of observed phenomenology, to allow detailed explanation of experimental data, and to sensibly plan further experimentation. An appendix provides a complete keyword-annotated bibliography of pa

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physics Briefs written by and published by . This book was released on 1989 with total page 1046 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Study of Interactions of Highly Charged Ions with Atoms at KeV Energies written by and published by . This book was released on 1992 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Progress Report describes the experimental work carried out, and the work in progress, at the Cornell EBIS Laboratory during the period 7/1/1991 to 6/30/1992. During this period, a number of experiments were carried out. The absolute values of the total, one, two and three electron transfer cross sections for highly charged argon ions (8(less-than or equal to)q(less-than or equal to)16) colliding with argon at 2.3 qkev laboratory energy were measured. The distribution of recoil ions and molecular fragments formed in highly charged ion atom and molecule collisions was measured in order to help the interpretation of electron spectra in the 40--320 eV energy range emitted in Ar{sup q+}+Ar(8(less-than or equal to)q(less-than or equal to)16) collisions at 2.3 qkeV that were measured in our laboratory. The interpretation of the electron spectra is still under way. A new collision chamber was built which contains an ion decelerating lens system and a high resolution monochromator-analyzer combination. Ions extracted from the Cornell Electron Beam Ion Source were successfully decelerated from 2.3 qkeV down to 30 qeV Preliminary 0° translational energy spectra for Ar{sup l2+} on Ar at a collision energy of 38.6 qeV show a 0.56 qeV resolution. Work is in progress to extend measurements of cross sections and recoil ion charge state distributions down to collision energies in the 10 eV/amu range.

Download or read book INIS Atomindex written by and published by . This book was released on 1987 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A High Efficiency Ion Source written by Alvin Theodore Finkelstein and published by . This book was released on 1939 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Physics and Technology of Ion Sources written by Ian G. Brown and published by Wiley-VCH. This book was released on 1989-04-18 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of this title has become a well-known reference book on ion sources. The field is evolving constantly and rapidly, calling for a new, up-to-date version of the book. In the second edition of this significant title, editor Ian Brown, himself an authority in the field, compiles yet again articles written by renowned experts covering various aspects of ion source physics and technology. The book contains full chapters on the plasma physics of ion sources, ion beam formation, beam transport, computer modeling, and treats many different specific kinds of ion sources in sufficient detail to serve as a valuable reference text.

Download or read book Interactions of Multiply charged Ions with Electrons and Photons written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The current status of ion beam excitation and ionization by high energy electrons and photons is discussed. Recent advances in multiply-charged ion source development are mentioned, and plans for electron-ion and synchrotron-ion crossed beam experiments at Brookhaven National Laboratory are described.

Download or read book Investigation of Multi charged Heavy Ion Production in an Electron Beam Ion Source written by Robert Wray Hamm and published by . This book was released on 1977 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Study of Excitation and Ionization of Multiply Charged Atom Ions by Electronic Impact written by James N. Bradbury and published by . This book was released on 1972 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation of the electron impact excitation and ionization cross sections of N(4+) is described. A Van de Graaff accelerator coupled with a gas stripper was used to produce a beam of 2.7 MeV N(4+) ions which were separated from other charge states by magnetic and electrostatic analysis. The ions were crossed with a variable energy electron beam in a well-defined geometry. Radiation from the excited ions was observed with a photomultiplier downstream from the interaction region. The ions promoted to higher charge states were separated from the primary beam electrostatically and detected with an electron multiplier tube. Results are presented for the N(4+) transition (2s to 2p) in the collision energy range 125-400 eV. (Author).