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Metallic beam developments for the SPIRAL 2 project.

C Barué1, C Canet1, M Dupuis1

  • 1GANIL, CEA/CNRS, Bd Henri Becquerel, BP 55027, 14076 Caen Cedex 5, France.

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Summary
This summary is machine-generated.

The Phoenix V2 electron cyclotron resonance ion source (ECRIS) achieved 1 pμA intensity for high charge state metallic ions, crucial for the SPIRAL 2 facility

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Area of Science:

  • Nuclear Physics
  • Accelerator Technology
  • Ion Source Development

Background:

  • The SPIRAL 2 facility requires high-intensity stable and radioactive ion beams.
  • Specific ion source requirements include high charge states (Q/A = 1/3) at 60 kV extraction voltage.
  • Most stable beam requests for SPIRAL 2 involve metallic elements.

Purpose of the Study:

  • To test the performance of the Phoenix V2 18 GHz electron cyclotron resonance ion source (ECRIS) for SPIRAL 2 commissioning.
  • To evaluate the feasibility of producing high charge state metallic ions using the oven method.
  • To assess beam stability and ionization efficiency with different buffer gases.

Main Methods:

  • Utilized the Phoenix V2 18 GHz ECRIS at LPSC Grenoble.
  • Employed the oven method for introducing metallic elements (calcium, nickel, sulfur).
  • Conducted tests for calcium (40Ca14+, 40Ca16+), nickel (58Ni19+), and sulfur (32S11+).
  • Studied beam performance and stability using various buffer gases.

Main Results:

  • Achieved an intensity of 1 particle microampere (pμA) for the tested metallic elements.
  • Demonstrated the capability to produce high charge states necessary for RFQ LINAC injection.
  • Preliminary ionization efficiency results were obtained.
  • Evaluated beam stability under different buffer gas conditions.

Conclusions:

  • The Phoenix V2 ECRIS, using the oven method, is suitable for producing high charge state metallic ions for SPIRAL 2.
  • The source meets the intensity and charge state requirements for the facility's commissioning.
  • Further studies on ionization efficiency and buffer gas effects are warranted.