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Status Report Of A Compact 10 Ghz Electron Cyclotron Resonance Ecr Ion Source For Atomic Physics Experiments
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Book Synopsis Status Report of a Compact 10 GHz Electron Cyclotron Resonance (ECR) Ion Source for Atomic Physics Experiments by :
Download or read book Status Report of a Compact 10 GHz Electron Cyclotron Resonance (ECR) Ion Source for Atomic Physics Experiments written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A summary of recent modifications and developments of a compact, fully permanent magnet ECR ion source will be given in this paper. To improve the confinement of the plasma electrons the axial magnetic mirror ratio has been enhanced to 2.5. This results in a more efficient plasma heating at low microwave power levels and therefore ion currents up to 320 e[mu]A could be extracted with a microwave power of less than 10 Watts. The maximum intensities for different charge states and various gases obtained so far will be shown.
Book Synopsis Electron Cyclotron Resonance Ion Sources and ECR Plasmas by : R Geller
Download or read book Electron Cyclotron Resonance Ion Sources and ECR Plasmas written by R Geller and published by CRC Press. This book was released on 1996-01-01 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acknowledged as the "founding father" of and world renowned expert on electron cyclotron resonance sources Richard Geller has produced a unique book devoted to the physics and technicalities of electron cyclotron resonance sources. Electron Cyclotron Resonance Ion Sources and ECR Plasmas provides a primer on electron cyclotron phenomena in ion sources as well as being a reference to the field of ion source developments. Coverage includes elements of plasma physics, specific electron cyclotron resonance physics, and the relevant technology directed at both scientists and engineers.
Book Synopsis Physics Division Annual Report by : Argonne National Laboratory. Physics Division
Download or read book Physics Division Annual Report written by Argonne National Laboratory. Physics Division and published by . This book was released on 1997 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Status of ECR (Electron Cyclotron Resonance) Source Technology by :
Download or read book Status of ECR (Electron Cyclotron Resonance) Source Technology written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ECR (Electron Cyclotron Resonance) ion sources are now in widespread use for the production of high quality multiply charged ion beams for accelerators and atomic physics experiments, and industrial applications are being explored. Several general characteristics of ECR sources explain their widespread acceptance. For use with cyclotrons which require CW multiply charged ion beams, the ECR source has many advantages over heavy-ion PIG sources. Most important is the ability to produce higher charge states at useful intensities for nuclear physics experiments. Since the maximum energy set by the bending limit of a cyclotron scales with the square of the charge state, the installation of ECR sources on cyclotrons has provided an economical path to raise the energy. Another characteristic of ECR sources is that the discharge is produced without cathodes, so that only the source material injected into an ECR source is consumed. As a result, ECR sources can be operated continuously for periods of weeks without interruption. Techniques have been developed in the last few years, which allow these sources to produce beams from solid materials. The beam emittance from ECR sources is in the range of 50 to 200 .pi. mm-mrad at 10 kV. The principles of ECR ion sources are discussed, and present and future ECR sources are reviewed.
Book Synopsis An Ultra Compact 10 GHz Electron-cyclotron-resonance Ion Source (ECRIS) for the Production of Multiply Charged Ions by :
Download or read book An Ultra Compact 10 GHz Electron-cyclotron-resonance Ion Source (ECRIS) for the Production of Multiply Charged Ions written by and published by . This book was released on 1996 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a growing interest in the use of beams of multiply charged ions produced in special environments like high voltage platforms, Dynamitrons, Van-de-Graaff accelerators or on-line production systems for radioactive beam facilities. A compact 10 GHz ECR ion source (200 mm long, 170 mm diameter) has been developed and tested. The complete magnetic structure made from permanent magnet material is comprised of four ring magnets producing an asymmetric axial magnetic field with a mirror ratio of 2.5 and a 24 piece hexapole magnet with a maximum radial field of 0.94 T inside the plasma chamber of 25 mm inner diameter. The coupling of the microwave to the plasma using a resonant transition line from rectangular to circular waveguide shows efficient ECR plasma heating at microwave power levels around 10 watts. Charge state distributions for various elements with intensities up to 320 e[mu]A and their dependence on operation parameters will be presented as well as VUV spectra in the wavelength region down to 15 nm.
Book Synopsis Electron Cyclotron Resonance Ion Sources by : Matthaeus Leitner
Download or read book Electron Cyclotron Resonance Ion Sources written by Matthaeus Leitner and published by American Institute of Physics. This book was released on 2005-03-23 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Berkeley, California, 26-30 September 2004
Book Synopsis ECR (Electron Cyclotron Resonance) Ion Sources for Cyclotrons by :
Download or read book ECR (Electron Cyclotron Resonance) Ion Sources for Cyclotrons written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last decade ECR (Electron Cyclotron Resonance) ion sources have evolved from a single large, power consuming, complex prototype into a variety of compact, simple, reliable, efficient, high performance sources of high charge state ions for accelerators and atomic physics. The coupling of ECR sources to cyclotrons has resulted in significant performance gains in energy, intensity, reliability, and variety of ion species. Seven ECR sources are in regular operation with cyclotrons and numerous other projects are under development or in the planning stag. At least four laboratories have ECR sources dedicated for atomic physics research and other atomic physics programs share ECR sources with cyclotrons. An ECR source is now installed on the injector for the CERN SPS synchrotron to accelerate O/sup 8 +/ to relativistic energies. A project is underway at Argonne to couple an ECR source to a superconducting heavy-ion linac. Although tremendous progress has been made, the field of ECR sources is still a relatively young technology and there is still the potential for further advances both in source development and understanding of the plasma physics. The development of ECR sources is reviewed. The important physics mechanisms which come into play in the operation of ECR Sources are discussed, along with various models for charge state distributions (CSD). The design and performance of several ECR sources are compared. The 88-Inch Cyclotron and the LBL ECR is used as an example of cyclotron+ECR operation. The future of ECR sources is considered.
Book Synopsis Cyclotrons And Their Applications - Proceedings Of The13th International Conference, Vancouver, 1992 by : G Dutto
Download or read book Cyclotrons And Their Applications - Proceedings Of The13th International Conference, Vancouver, 1992 written by G Dutto and published by World Scientific. This book was released on 1993-01-08 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes the latest developments in the design, construction and operation of cyclotrons, from compact machines producing intense beams for isotope production, cancer therapy and industrial use, to the larger versions giving higher energy beams of ions of various elements for nuclear and particle physics. Important topics include ECR ion sources, superconducting magnets and radiofrequency cavities, beam dynamics and diagnostics, beam cooling rings, control systems and various medical and industrial applications.
Download or read book SWISSCASE written by Michael Bodendorfer and published by Sudwestdeutscher Verlag Fur Hochschulschriften AG. This book was released on 2009 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ions are atoms that have lost or gained one or more electrons, providing the ions with a negative or a positive charge. Unlike bound ions found in solutions, free ions are very rare on Earth but are abundantly found in interplanetary space and cometary atmospheres. Ground based ion sources, which produce free ions to simulate these science targets, are used to calibrate space flight instruments on Earth prior to flight. In order to provide a brighter and more versatile ion source to calibrate future space instrumentation at the University of Bern, Switzerland, this thesis presents planing, realization and characterization of a new high performance ion source. SWISSCASE, the Solar Wind Ion Source Simulator for the CAlibration of Space Experiments, is optimized for production of highly charged ions such as 2 A of Ar8+ and 80 pA of Ar12+. The ions are produced by an electron cyclotron resonance plasma which is heated by microwaves with a frequency of 10 GHz. The plasma is confined by a very compact full permanent magnet hexapole which makes the ion source highly attractive for the operation on a high voltage terminal due to its intrinsically low power consumption.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ECR Sources for the Production of Highly Charged Ions by :
Download or read book ECR Sources for the Production of Highly Charged Ions written by and published by . This book was released on 1989 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron Cyclotron Resonance Ion Sources (ECRIS) using RF between 5 and 16 GHz have been developed into stable, reliable sources of highly charged ions produced from a wide range of elements. These devices are currently used as ion sources for cyclotrons, synchrotrons, and heavy-ion linacs for nuclear and relativistic heavy-ion physics. They also serve the atomic physics community as a source of low energy multiply-charged ions. In order to improve their performance both with respect to maximum charge state and beam intensity, ECRIS builders are now designing and constructing sources which will operate at frequencies up to 30 GHz. In this paper we review the present status of operating ECRIS, review recent experimental measurements on plasma parameters, and look at the technology and potential of sources operating at frequencies up to 30 GHz. 14 refs., 4 figs., 1 tab.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book 上清天關三圖經 written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conceptual Design of a Gyrotron-driven Superconducting ECR Ion Source by :
Download or read book Conceptual Design of a Gyrotron-driven Superconducting ECR Ion Source written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The conceptual design for a superconducting Electron Cyclotron Resonance Ion Source (ECRIS) is presented. It is designed to take advantage of frequency scaling in ECRIS and be driven at 28 GHz by a laboratory scale gyrotron. The superconducting coils are surrounded by a warm bore iron yoke. Possible applications include cyclotrons, heavy-ion synchrotrons, ion implantation in semiconductors, and experiments in atomic physics. 10 refs., 5 figs., 1 tab.
Book Synopsis Design and Testing of an Electron Cyclotron Resonance Heating Ion Source for Use in High Field Compact Superconducting Cyclotrons by : Mark E. Artz
Download or read book Design and Testing of an Electron Cyclotron Resonance Heating Ion Source for Use in High Field Compact Superconducting Cyclotrons written by Mark E. Artz and published by . This book was released on 2012 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main goal of this project is to evaluate the feasibility of axial injection of a high brightness beam from an Electron Cyclotron Resonance ion source into a high magnetic field cyclotron. Axial injection from an ion source with high brightness is important to reduce particle losses in the first several turns of acceleration within the cyclotron. Beam brightness is a measure of the beam current and rate of spread of the beam. The ultimate goal in developing an ECR ion source is to enable reduced beam losses along the entire acceleration path from the ion source through the cyclotron, allowing for a high beam current accelerator. Cyclotrons with high beam current have the potential to improve the availability of proton radiation therapy. Proton radiation therapy is a precisely targeted treatment capable of providing an excellent non-invasive treatment option for tumors located deep within tissue. In order to model injection into high field it is necessary to measure the parameters of the beam extracted from the ion source. The two most important beam parameters are emittance and beam current. The emittance of the beam is a measurement of the rate of beam spread along the path of the beam and beam current is a measurement of the energy and quantity of particles within a charged particle beam. This thesis presents the design and analysis of an ECR Ion Source and the instruments used to measure the emittance and beam current. Based on the modeling of the ECR ion source beam and the data gathered during testing, the ECR ion source presented in this thesis has the potential to provide a high brightness beam capable of high field axial injection. Beam simulations provide insight into the performance of the ECR ion source in high magnetic field. Axial beam injection from an external ion source is promising with moderate refinements to the ECR ion source.
Book Synopsis Properties of Electron Cyclotron Resonance Plasma Sources by : Aseem Kumar Srivastava
Download or read book Properties of Electron Cyclotron Resonance Plasma Sources written by Aseem Kumar Srivastava and published by . This book was released on 1995 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electron Cyclotron Resonance (ECR) Ion Sources by :
Download or read book Electron Cyclotron Resonance (ECR) Ion Sources written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Starting with the pioneering work of R. Geller and his group in Grenoble (France), at least 14 ECR sources have been built and tested during the last five years. Most of those sources have been extremely successful, providing intense, stable and reliable beams of highly charged ions for cyclotron injection or atomic physics research. However, some of the operational features of those sources disagreed with commonly accepted theories on ECR source operation. To explain the observed behavior of actual sources, it was found necessary to refine some of the crude ideas we had about ECR sources. Some of those new propositions are explained, and used to make some extrapolations on the possible future developments in ECR sources.
