Fast And Efficient Charge Breeding Of The Californium Rare Isotope Breeder Upgrade Electron Beam Ion Source
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Release | : 2015 |
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Download Fast and Efficient Charge Breeding of the Californium Rare Isotope Breeder Upgrade Electron Beam Ion Source Book in PDF, Epub and Kindle
The Electron Beam Ion Source (EBIS), developed to breed Californium Rare Isotope Breeder Upgrade (CARIBU) radioactive beams at Argonne Tandem Linac Accelerator System (ATLAS), is being tested off-line. A unique property of the EBIS is a combination of short breeding times, high repetition rates, and a large acceptance. Overall, we have implemented many innovative features during the design and construction of the CARIBU EBIS as compared to the existing EBIS breeders. The off-line charge breeding tests are being performed using a surface ionization source that produces singly charged cesium ions. The main goal of the off-line commissioning is to demonstrate stable operation of the EBIS at a 10 Hz repetition rate and a breeding efficiency into single charge state higher than 15%. These goals have been successfully achieved and exceeded. We have measured (20% ± 0.7%) breeding efficiency into the single charge state of 28+ cesium ions with the breeding time of 28 ms. In general, the current CARIBU EBIS operational parameters can provide charge breeding of any ions in the full mass range of periodic table with high efficiency, short breeding times, and sufficiently low charge-to-mass ratio, 1/6.3 for the heaviest masses, for further acceleration in ATLAS. In this study, we discuss the parameters of the EBIS and the charge breeding results in a pulsed injection mode with repetition rates up to 10 Hz.
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Release | : 2009 |
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Download Optimization of Electron-cyclotron-resonance Charge-breeder Ions Book in PDF, Epub and Kindle
Measurements of 1+ beam properties and associated performance of ECR Charge Breeder source determined by total efficiency measurement and charge state distributions from the ECR Charge Breeder. These results were communicated to Far-Tech personnel who used them to benchmark the newly developed programs that model ion capture and charge breeding in the ECR Charge Breeder Source. Providing the basic data described above and in the discussion below to Far-Tech allowed them to improve and refine their calculational tools for ECR ion sources. These new tools will be offered for sale to industry and will also provide important guidance to other research labs developing Charge Breeding ion sources for radioactive beam physics research.
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Release | : 2011 |
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Download Final Technical Report Book in PDF, Epub and Kindle
The purpose of this project was to develop a charge-breeder system not only for producing the highly charged ion species needed for nuclear physics experiments, but one that could be used as a test bed for testing and developing additional techniques and technologies. The charge-breeder ion source developed under this grant was designed as a charge-breeder from the beginning and has none of the limitations inherent of converted primary ECR sources. Additionally, the major source components are designed to be easily replaced. This document describes the design, fabrication, and testing of the Scientific Solutions charge-breeder ion source. This source was delivered to Texas A & M University in October 2007 for further testing.
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Release | : 2004 |
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Download Commissioning of the Superconducting ECR Ion Source VENUS at 18 GHz Book in PDF, Epub and Kindle
During the last year, the VENUS ECR ion source was commissioned at 18 GHz and preparations for 28 GHz operation are now underway. During the commissioning phase with 18 GHz, tests with various gases and metals have been performed with up to 2000 W RF power. The ion source performance is very promising [1,2]. VENUS (Versatile ECR ion source for Nuclear Science) is a next generation superconducting ECR ion source, designed to produce high current, high charge state ions for the 88-Inch Cyclotron at the Lawrence Berkeley National Laboratory. VENUS also serves as the prototype ion source for the RIA (Rare Isotope Accelerator) front end. The goal of the VENUS ECR ion source project as the RIA R & D injector is the production of 240e[micro]A of U[sup 30+], a high current medium charge state beam. On the other hand, as an injector ion source for the 88-Inch Cyclotron the design objective is the production of 5e[micro]A of U[sup 48+], a low current, very high charge state beam. To meet these ambitious goals, VENUS has been designed for optimum operation at 28 GHz. This frequency choice has several design consequences. To achieve the required magnetic confinement, superconducting magnets have to be used. The size of the superconducting magnet structure implies a relatively large plasma volume. Consequently, high power microwave coupling becomes necessary to achieve sufficient plasma heating power densities. The 28 GHz power supply has been delivered in April 2004.
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Total Pages | : 31 |
Release | : 2000 |
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Download A High Efficiency Electron Cyclotron Resonance Ion Source System for the Production of Radioactive Ion Beams. Final Report Book in PDF, Epub and Kindle
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Total Pages | : 5 |
Release | : 1996 |
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Download An Ultra Compact 10 GHz Electron-cyclotron-resonance Ion Source (ECRIS) for the Production of Multiply Charged Ions Book in PDF, Epub and Kindle
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.
Author | : Rand Corporation |
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Total Pages | : 0 |
Release | : 1981 |
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Download The Development of High-intensity Negative Ion Sources and Beams in the USSR Book in PDF, Epub and Kindle
Author | : Argonne National Laboratory. Physics Division |
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Total Pages | : 312 |
Release | : 2001 |
Genre | : Nuclear physics |
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Download Physics Division Annual Report Book in PDF, Epub and Kindle
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Total Pages | : 766 |
Release | : 1972-09 |
Genre | : Nuclear energy |
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Download Nuclear Science Abstracts Book in PDF, Epub and Kindle
Author | : Doug Reilly |
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Total Pages | : 700 |
Release | : 1991 |
Genre | : Non-destructive testing |
ISBN | : 9780160327247 |
Download Passive Nondestructive Assay of Nuclear Materials Book in PDF, Epub and Kindle