Library

X
Your search history is empty.
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Results and interpretation of high frequency experiments at 28 GHz in ECR ion sources, future prospects : Papers from the Ninth International Conference on Ion Sources (2002)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 73 (2002), S. 509-512 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: For the needs of future heavy ion accelerators, electron cyclotron resonance ion sources (ECRISs) should be able to deliver higher intensities and higher charge states. The 1e mA level intensity has already been reached by room temperature ECRIS for medium charge states of light elements (O6+, Ar8+). However, such level of intensity for heavy elements (like Pb27+ for CERN/LHC and GSI) requires more powerful ECRIS with higher electron densities (up to 1013 cm−3). On the other hand, an optimized magnetic configuration system has to be used in order to obtain the suitable compromise between the electron confinement and the high flux ion losses. Before the design of the future "high intensity ECRIS," experiments have been performed with the superconducting SERSE source both at 18 and 28 GHz. After an overview of major results recently obtained, some scaling laws will be presented. Our results show that much larger intensities and charges can be reached with ECRIS. Then, we will show how the next ECRIS generation will look like, based on the scaling laws derived in the above-mentioned experiments. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1429313
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The new 1.2 T–14.5 GHz Caprice source of multicharged ions: Results with metallic elements : Proceedings of the 6th international conference on ion sources (1996)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 67 (1996), S. 883-885 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The 1.2 T–14.5 GHz ECR Caprice source is an upgrade version of previous Caprice sources where the three main ingredients of an ECR ion source of multicharged ions have been optimized: (i) the magnetic configuration has higher axial fields (1.4–1.45 T at the mirror throats) and radial field (1.05 T at the wall inside the plasma chamber) as well as higher mirror ratios, (ii) the 14.5 GHz rf frequency is convenient to higher magnetic fields, and (iii) more efficient electron sources allow the electron density to reach higher values, and thus high extracted ion currents (both first stage and wall coating). Emphasis is given to the metallic elements, the source is able to produce 10 eμA of Ca14+, 3 eμA of Fe17+ and Ni20+, 1 eμA of U37+, while being able to deliver 1130 eμA of O6+, 190 eμA of O7+, and 100 eμA of Ar12+. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1146828
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Status report of the accelerator for multiply charged ions in Grenoble (2000)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 71 (2000), S. 2041-2044 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The status report of the Multiply Charged Ion Accelerator of the CEA-Grenoble is presented. This facility is devoted to the production of multiply charged ions (up to Xe31+) in the low energy domain (1–20 q keV). A new 14.5 GHz high magnetic field electron cyclotron resonance ion source of the Caprice type has been installed, the transmission of the beam line increased, resulting in a large enhancement of the available beam intensity. Ion selection and deceleration are simplified. Emittances as low as before are achieved. Performances for various beams are presented, together with updated beam emittance measurements. The intensity enhancement is especially large for highly charged ion beams like Ar17+ (100 times more intensity), and enables routine delivery to experiments of more than 10 μA of Xe25+ at 20 q keV in 20 π mm mrad. The range of available charge states was extended to Xe31+ (with a reasonable intensity of 180 nA). Future prospects include the extension of the energy range down to a few q eV. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1150575
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Spectroscopic studies in the VUV range in electron cyclotron resonance ion sources : Proceedings of the 6th international conference on ion sources (1996)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 67 (1996), S. 1258-1260 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Using a calibrated 3 m grazing incidence spectrometer-type Romand Vodar equipped with channel plates detector, we studied emission lines in the range between 10 and 100 nm of ions from plasma generated in two different electron cyclotron resonance ion sources (the new CAPRICE and QUADRUMAFIOS). In the VUV range, one can observe many emission lines from nearly all ionization states. From the measurements, performed on oxygen and helium mixture plasmas and thanks to a theoretical model, an estimation is done giving the electronic and ionic densities for different rf powers. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1146691
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Ion behavior and gas mixing in electron cyclotron resonance plasmas as sources of highly charged ions (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 86 (1999), S. 4772-4779 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This article deals with ion behavior in small open-ended magnetic devices, the electron cyclotron resonance ion sources (ECRIS) that were developed for multicharged ion production. The ECRIS are basically ECR-heated plasma confinement machines with hot electrons and cold ions. The main parameters of the ion population in ECRIS plasmas are successively analyzed: temperature, collisions, losses, confinement times, followed by the gas mixing effect, a specific technique to improve the performance as an ion source. A series of experiments is described for the systematic analysis of this effect. It is experimentally shown that high charge state optimization by gas mixing results from an ion confinement time improvement due to ion cooling, and relies on a compromise between three criteria, ion losses, mass effect, and ionization rates. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.371442
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Spectroscopic study of the plasma of the 10-GHz CAPRICE source : Proceedings of the fourth International Conference on Ion Sources (1992)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 2889-2891 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A vacuum ultraviolet spectrometer has been installed on the axis of a 10-GHz CAPRICE source in order to study the relative intensity of some spectral lines in connection with the main parameters of the source, i.e., rf power and gas pressure. Measurements were performed with oxygen ions and preliminary results are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1142788
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Anomalous oxygen isotopic charge state distribution in ECRIS: New evidence : Proceedings of the 6th international conference on ion sources (1996)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 67 (1996), S. 953-955 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The highly performing Electron Cyclotron Resonance Ion Source CAPRICE in Grenoble was operated with a mixture of three oxygen isotopes. The summed currents per charge state show a distribution almost identical to that of natural oxygen. However, the distributions per isotope are distinctly and systematically different in the sense that the heaviest isotopic distribution is most prominently peaked at high charge states. This anomalous effect reduces or disappears if helium is added to the isotopic mixture. The addition of either natural helium or isotopic 3He has no significantly differing result. Presently no quantitative model is available to satisfactorily explain the measurements. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1146781
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Status of development of ECR ion sources at Grenoble (invited) : Proceedings of fifth international conference on ion sources (1994)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 65 (1994), S. 1051-1056 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: This article gives a short summary of the performances of the electron cyclotron resonance ion sources (ECRIS) so far built by the Grenoble laboratory; emphasis is given to the high B field Caprice source, a compact in size source delivering high charge states and high intensities. Both the continuous regime of operation, and the pulsed regime having performances enhanced by the afterglow effect, as well as other noticeable effects, are surveyed. The next part of the article deals with the analysis of the data and our present understanding of the ECRIS behavior. At last the present trends of development of ECRIS are examined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1145113
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Conception and performance of the new Lagrippa facility : International conference on ion sources (1990)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 61 (1990), S. 336-340 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A new Lagrippa facility has been constructed for the production of high quality beams of multicharged ions with energies of 1–25 q keV. The machine is based on the new 10 GHz, Caprice ECR-ion source which operates partially on the second harmonic. A new extraction optics for ECR sources with variable electrode distance has been employed which allows high currents at an emittance of less than 40 π mm mrad (corresponding to a beam spot of a diameter less than 4 mm with a divergence ≤±20 mrad). Together with an acceleration–separation–deceleration scheme this machine furnishes beam currents of 11 μA O7+ at 15 q keV, 80 pA Ar17+ at 20 q keV, 6 pA Ar17+ at 20 q keV, and a significant current of Kr31+. Further details of the conception of the machine, its performance, and the first experiments up to June 1989 will be presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1141287
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Low energy charge exchange of multicharged ions: A new spectroscopy
    Amsterdam : Elsevier
    Nuclear Inst. and Methods in Physics Research, B 24-25 (1987), S. 199-204 
    Details
    ISSN: 0168-583X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-583X(87)90622-7
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...