Prototype for an undulator-based source for polarised positrons

  • Gudrid Moortgat-Pick
PS15 Accelerator R and D
  • 31 Downloads

Abstract

The full exploitation of the physics potential of a future Linear Collider requires the development of polarised positron beams. A very promising scheme for the technical realisation is the use of helical undulators, generating circular polarised photons of several MeV which are then converted in a thin target to longitudinally polarised positrons. The experiment E-166 tests this scheme. It uses the low-emittance 50-GeV electron beam at the Final Focus Test Beam (FFTB) at SLAC, passing through a 1 meter-long helical undulator. The flux and polarisation of the undulator photons as well as the properties of the positrons will be measured and will be compared with simulations.

PACS: 12.60.-i Models beyond the standard model – 13.88.+e Polarization in interactions and scattering – 29.27.Hj Polarized Beams – 95.75.Hi Polarimetry

Keywords

Electron Beam Promising Scheme Polarize Beam Linear Collider Test Beam 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag, Società Italiana di Fisica 2003

Authors and Affiliations

  • Gudrid Moortgat-Pick
    • 1
  1. 1.IPPP, Institute for Particle Physics Phenomenology, University of Durham, Durham, DH1 3LEUK

Personalised recommendations