Production of Slow Positrons

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Production of Slow Positrons W. J. Kossler S. S. Long JPos09

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Production of Slow Positrons. W. J. Kossler S. S. Long JPos09. 2.5mm cube. 1 x 4 x 1 mm. 1cm spacing. Angle in the y-z plane. Angle in the y-z plane. Moderator is target. Moderator is target. Conclusions. Jlab is an ideal test bed for slow e+ production ideas. - PowerPoint PPT Presentation

Transcript of Production of Slow Positrons

  • Production of Slow PositronsW. J. Kossler

    S. S. Long

    JPos09

  • 2.5mm cube1cm spacing1 x 4 x 1 mm

  • Angle in the y-z plane

  • Angle in the y-z plane

  • Moderator is target

  • Moderator is target

  • ConclusionsJlab is an ideal test bed for slow e+ production ideas.At 140 MeV and 1 mA, if the estimate is correct, the yield of 0.9x1011 slow e+/s is higher than anything else in the world.

    Geant4 generic arrangement. Converter is to leftand moderator is to right. Electrons are in cyan,gammas in violet, and positrons in orange.The electron beam enters from the left.