Positron extraction to an electromagnetic field free region
arXiv:1508.06213 · doi:10.1088/0953-4075/49/1/014001
Abstract
We describe a scheme for high efficiency (about 90%) extraction of 50 ns positron bunches from a buffer gas trap in an electromagnetic field free region. The positrons are time bunched to approximately 1 ns (FWHM) and focussed to less than 1 mm (Ï). The target is kept at ground potential which is an advantage for many applications. The results compare well with SIMION simulations.
8 pages, 4 Figures