Speaker
Spencer Gessner
(SLAC)
Description
We present a novel, compact, low-emittance positron source that is compatible with existing PWFA and LWFA facilities (https://arxiv.org/abs/2301.08368). The device is based on a Penning-Malmberg trap that collects and cools positrons. The resulting beam has low thermal emittance (less than 1 micron), but it is magnetized and the bunch length is cm-scale. We describe a method for extracting and compressing the beam to 100 um-scale bunch lengths, which is compatible for acceleration in low-density PWFA experiments.
Primary author
Spencer Gessner
(SLAC)
Co-author
Rafi Hessami
(SLAC)
