Abstract
The first demonstration of a full-scale working undulator module suitable for future TeV-scale positron-electron linear collider positron sources is presented. Generating sufficient positrons is an important challenge for these colliders, and using polarized would enhance the machine’s capabilities. In an undulator-based source polarized positrons are generated in a metallic target via pair production initiated by circularly polarized photons produced in a helical undulator. We show how the undulator design is developed by considering impedance effects on the electron beam, modeling and constructing short prototypes before the successful fabrication, and testing of a final module.
- Received 1 April 2011
DOI:https://doi.org/10.1103/PhysRevLett.107.174803
© 2011 American Physical Society
Focus
Testing a Piece of the Next Generation Collider
Published 20 October 2011
Researchers have demonstrated the key piece of equipment needed to produce the intense positron beams required for the next generation of particle accelerators.
See more in Physics