Speaker
Dr
Carl Schroeder
(Lawrence Berkeley National Laboratory)
Description
Ionization injection has become a commonly used technique to trap electrons in plasma wakefields. Ionization injection, where electrons are ionized by an intense laser in the plasma wakefield, reduces the wakefield amplitude required for trapping. The lower trapping threshold allows operation at lower plasma densities, enabling higher beam energy gains. However, ionization injection can also result in poor quality of the trapped electron bunch, compared to self-injection. We examine the transverse emittance of beams generated by laser ionization injection. Methods to improve the beam quality will be discussed. The transverse beam quality may be greatly improved by using two lasers with different wavelengths. This two-color ionization injection technique can generate beams with transverse emittance on the order of tens of nm.
Primary author
Dr
Carl Schroeder
(Lawrence Berkeley National Laboratory)
Co-authors
Dr
Cameron Geddes
(Lawrence Berkeley National Laboratory)
Dr
Carlo Benedetti
(Lawrence Berkeley National Laboratory)
Dr
Eric Esarey
(Lawrence Berkeley National Laboratory)
Dr
Jean-Luc Vay
(Lawrence Berkeley National Laboratory)
Dr
Stepan Bulanov
(Lawrence Berkeley National Laboratory)
Dr
Wim Leemans
(Lawrence Berkeley National Laboratory)
