By Topic

Nuclear Science, IEEE Transactions on

Issue 2 • Date April 1972

Filter Results

Displaying Results 1 - 25 of 70
  • [Front cover]

    Publication Year: 1972 , Page(s): c1
    Request Permissions | PDF file iconPDF (57 KB)  
    Freely Available from IEEE
  • IEEE Transactions on Nuclear Science

    Publication Year: 1972 , Page(s): c2
    Request Permissions | PDF file iconPDF (191 KB)  
    Freely Available from IEEE
  • Table of contents

    Publication Year: 1972 , Page(s): 1 - 8
    Request Permissions | PDF file iconPDF (368 KB)  
    Freely Available from IEEE
  • Conference Committees

    Publication Year: 1972 , Page(s): 2
    Request Permissions | PDF file iconPDF (65 KB)  
    Freely Available from IEEE
  • Comments on the Conference

    Publication Year: 1972 , Page(s): 3
    Request Permissions | PDF file iconPDF (67 KB)  
    Freely Available from IEEE
  • The Nucleus

    Publication Year: 1972 , Page(s): 5
    Request Permissions | PDF file iconPDF (86 KB)  
    Freely Available from IEEE
  • Heavy Ion Research at Dubna

    Publication Year: 1972 , Page(s): 9 - 15
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1958 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Some Remarks on Heavy Ion Acceleration and Heavy Ion Accelerators

    Publication Year: 1972 , Page(s): 16 - 21
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1007 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Survey of Multicharged Ion Sources Physics and Some Extraction Problems

    Publication Year: 1972 , Page(s): 22 - 34
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2227 KB)  

    A review is given of fundamental processes leading to the production of multicharged ions by electron-atom collision : direct electron ejection, Auger process, electron shake-off. Results concerning ionization crosssections by electron impact are discussed. Some approximate methods allowing to a good knowledge of the ionic population in different types of ion sources (hot plasma devices, laser ion... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Duoplasmatron Ion Sources

    Publication Year: 1972 , Page(s): 35 - 47
    Cited by:  Papers (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1540 KB)  

    A survey on questions related to the production of multiply charged ions with the Duoplasmatron ion source is given. In spite of differences of the multiply charged ion source and the mass separator type, design considerations show that high containment is a common feature to be attained in both subjects. Multiply charged metal ions are produced by material evaporation into the magnetically confin... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Review of PIG Sources for Multiply Charged Heavy Ions

    Publication Year: 1972 , Page(s): 48 - 68
    Cited by:  Papers (10)  |  Patents (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (6046 KB)  

    A review is given of the performance and characteristics of the various types of PIG sources used for the production of multiply charged ions. They are able to produce ions with a high charge to mass ratio for the lighter elements up to about neon, but for heavier elements the ratio fallssteadily. Charge states do not exceed 8 to 10 for argon and 12 for xenon. Although the development of the multi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Unilac Ion Source and Injection System

    Publication Year: 1972 , Page(s): 69 - 73
    Request Permissions | Click to expandAbstract | PDF file iconPDF (900 KB)  

    The design of the UNILAC injector was particularly governed by aspects of maintenance and reliable performance. Thus an open air 254 kV high gradient single gap acceleration was chosen for Uranium 11+ particles, corresponding to an injection energy of 11.7 keV/amu and a charge-to-mass ratio of 0.046. This allows fast ion source changes because only a short time for tube conditioning is required an... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Characteristics of a Cold Cathode Type Penning Source and Low Energy Isotope Separation of High Charge States

    Publication Year: 1972 , Page(s): 74 - 79
    Cited by:  Papers (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (658 KB)  

    Measurements of voltage-, current-and gas flow dependencies of a cold cathode Penning source, using different cathode materials, are reported. The influence of the discharge parameters (arc voltage, arc current, magnetic field and gas flow) on the production of higher charge states was studied. The highest observed charge states were Ar9+ , Kr12+ Xe13+ The cold cathode type Penning source with rad... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Emittance Measurements for N+ and N2+ in an Ion Beam from a Cyclotron Ion Source

    Publication Year: 1972 , Page(s): 80 - 83
    Request Permissions | Click to expandAbstract | PDF file iconPDF (540 KB)  

    The radial density profiles and emittance have been measured for N+ and N2+ beams from a Penning-type ion source that has a hot filament. It was found that the emittance for an extraction voltage of 12 kV and for 50% of the beanw as 21 cm-mrad for N+ and about 12 cm-mrad for N2+ The difference between these two areas may, in part, be explained by a charge state dependence due to different velociti... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Electron Cyclotron Resonance in a Penning Ion Source

    Publication Year: 1972 , Page(s): 84 - 87
    Request Permissions | Click to expandAbstract | PDF file iconPDF (578 KB)  

    Electron cyclotron resonance was detected in a Penning source by measuring the electron temperature as obtained from the x-ray emission spectrum. The resonance is only present if flat cathodes are used. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Penning Ion Source for Multiply Charged Ions

    Publication Year: 1972 , Page(s): 88 - 90
    Cited by:  Papers (3)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (537 KB)  

    The ion source described in this contribution allows the production of considerable ion beam intensities of highly charged ions. The electron density is increased by an additional electron gun. The decrease-of the ratio of neighbouring charge states is similar to the decrease of the ratio of the ionization cross sections by electron impact from which one event ionization processes are assumed to b... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Power Supplies for Cold Cathode Penning Discharge Ion Sources

    Publication Year: 1972 , Page(s): 91 - 92
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (301 KB)  

    For the generation of heavy ions at high charge states, the cold-cathode Penning discharge ion source requires a power supply capable of both the high potential essential for striking an arc and the high current for sustaining it. A series-regulated power supply developed at Oak Ridge provides up to 6 kV of striking voltage and up to 12 amperes of arc current. The power supply operates in a consta... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A New Heavy Ion Source and Recent Performance of Alice

    Publication Year: 1972 , Page(s): 93 - 100
    Cited by:  Papers (4)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (3068 KB)  

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Production and Acceleration of Metal Ions in the Harwell Variable Energy Cyclotron

    Publication Year: 1972 , Page(s): 101 - 104
    Request Permissions | Click to expandAbstract | PDF file iconPDF (869 KB)  

    The range of ions accelerated by the V.E.C. has recently been extended to metal ions. For example, a 5 to 10 ¿A beam of 48 MeV 58Ni6+ is now available and has been used by a customer. This beam has become possible as a result of success in adapting the normal ion source for the production of metal ions. The problem was to add to the ion source a controlled source of metal vapour without increasin... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A Source for Multiply-Charged Ions and Acceleration of C, N and O Ions by IPCR Cyclotron

    Publication Year: 1972 , Page(s): 105 - 108
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1098 KB)  

    The design and performance of the ion source which is now used in the IPCR variable energy cyclotron are described. The source is of the electron-bombarded hot cathode type having two cylindrical cathodes of tungsten and a water-cooled copper anode containing a replaceable molybdenum slit plate. The arc discharge is established continuously but not pulsed. The source is usually operated very stabl... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Production of Multiply-Charged Ions of Ne, Ar, Kr and Xe by the Electron-Bonbarded Hot Cathode IoN Source of IPCR

    Publication Year: 1972 , Page(s): 109 - 113
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (487 KB)  

    Production of multiply-charged ions of Ne, Ar, Kr and Xe has been studied by use of an electron-bombarded hot cathode type ion source of the IPCR 160cm cyclotron, which is similar to Morozov's source. These multiply-charged ions were accelerated by a 3rd harmonics acceleration mode in the cyclotron and detected with a beam probe fixed at the radius of 55cm. Observed multiply-charged ions are Ne2+,... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Heavy Ion Development at the Berkeley 88-Inch Cyclotron

    Publication Year: 1972 , Page(s): 114 - 117
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2164 KB)  

    A new internal Penning ion source is now being tested for production of nitrogen and oxygen beams. Nitrogen beams of N5+ have been accelerated to 250 MeV. An external source for lithium beams is being developed. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Performance of a Penning Ion Source in the Oak Ridge Isochronous Cyclotron

    Publication Year: 1972 , Page(s): 118 - 124
    Cited by:  Papers (2)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1855 KB)  

    One year of operation of a heavy-ion Penning source in the Oak Ridge Isochronous Cyclotron has resulted in the acceleration of a number of isotopes of 17 elements, ranging from boron to tantalum. The method of positive identification of these beams and the operational techniques used to develop certain beams are described. Comparison of the extracted particle current for a given charge state with ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Electron Beam Ion Source and Some Possibilities for Improvement

    Publication Year: 1972 , Page(s): 125 - 131
    Cited by:  Papers (1)
    Request Permissions | Click to expandAbstract | PDF file iconPDF (2129 KB)  

    Considering basic properties of the EBIS, as vacuum requirements, ion yield, and emittance, it is pointed out, that the EBIS - as proposed by Donets - is restricted in priciple to a poor yield of highly charged ions, To overcome this, a concept for a "dynamic containment" is presented. This means, that the axial ion movement between first ionization and the extraction is delayed in order to give t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Proposed Multiply Charged Ion Source

    Publication Year: 1972 , Page(s): 132 - 136
    Request Permissions | Click to expandAbstract | PDF file iconPDF (1566 KB)  

    A proposal is presented in this work for a new type of ion source that employs a hyperbolic potential field for the dual purpose of trapping the plasma ions, and permitting the electrons to impact the trapped ions successively, which by turn render the ions highly stripped. The pvwposed souroe consists of an axially symmetric hyperbolic Penning assembly energized with fixed and cosinusoidal voltag... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

IEEE Transactions on Nuclear Science focuses on all aspects of the theory and applications of nuclear science and engineering, including instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Paul Dressendorfer
11509 Paseo del Oso NE
Albuquerque, NM  87111  USA