[PEPPo] IPAC '15 Abstract

[Lawrence S. Cardman]

Attached please find an edited version with some suggestions.  Sorry I'm 
so late getting it to you.  The original is fine, so if you've sent it 
already don't worry about it.
         Larry

On 12/1/2014 7:21 PM, adeyemi at jlab.org wrote:
> Dear All,
> You will find below the draft abstract for the IPAC’15.The deadline for
> submission is Wednesday,December 3.
> Please send me your comments and suggestions as soon as possible.
> Thanks
> Leke
>
> PEPPo: Using a Polarized Electron Beam to Produce Polarized Positrons
>
> Adeleke Adeyemi, on behalf of the PEPPo Collaboration
>
> Polarized positron beams are identified as either an essential or
> significant ingredient for the experimental program at present or next
> generation lepton accelerators (JLab, Super KEK B, ILC, CLIC). A
> proof-of-principle experiment demonstrating a new method to produce
> polarized positrons has been performed at the Continuous Electron Beam
> Accelerator Facility at Jefferson Lab. The PEPPo (Polarized Electrons for
> Polarized Positrons) concept relies on the production of polarized
> electron/positron pairs from the bremsstrahlung radiation of a
> longitudinally polarized electron beam interacting within a high Z
> conversion target. The experiment was performed at the injector of the
> CEBAF accelerator at Jefferson Lab and demonstrated the effective transfer
> of spin-polarization of an 8.2 MeV/c polarized (P~85%) electron beam to
> positrons produced in varying thickness tungsten production targets, and
> collected and measured in the range of 3.1 to 6.2 MeV/c. In comparison to
> other methods this technique reveals a new pathway for high energy or
> thermal polarized positron beams that can be generated using a relatively
> low electron beam energy (~MeV) and also taking advantage of
> state-of-the-art polarized electron sources that supply high polarization
> (>80%) and high average current (milliAmpere). This presentation will
> describe the PEPPo concept, the motivations of the experiment and high
> positron polarization achieved.
>
> _______________________________________________
> PEPPo mailing list
> PEPPo at jlab.org
> https://mailman.jlab.org/mailman/listinfo/peppo

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