Sep 24 – 30, 2017
La Biodola, Isola d'Elba
Europe/Rome timezone

Concept of the long wakefield accelerator based on the tunnel gas ionization by the electric field from a dense electron bunch

Sep 25, 2017, 7:30 PM
Parking Area, Hotel Hermitage

Parking Area, Hotel Hermitage

poster WG8 - Advanced and novel accelerators for High Energy Physics Wine and Poster Session 1(WG1-WG2-WG3-WG8)


Aleksandr Gorn (Budker Institute of Nuclear Physics, Novosibirsk, Russia)


The train of charged particle bunches is an effective driver for a plasma-based accelerator, but the amplitude of the excited wakefield strongly depends on the uniformity of plasma, in other words, the type of plasma source. For the train with N bunches relative uniformity must be better than 1/N, thus, the more bunches are in a beam, the higher are the requirements on plasma. One of the prospective ways to obtain the high uniformity of plasma is the full ionization of the initially uniform gas using powerful laser pulse. For example, this method forms the basis of the AWAKE experiment at CERN. On the other hand, the laser pulse starts diverging after a long distance, it influences the radius of plasma column as well as the ionization degree and limits the possible length of the accelerator. This work considers charged particle bunches as the alternative to the laser pulse. Being charged, the bunch is able to be focused either by the external quadrupole magnets or the plasma itself and allows to increase the possible length of the accelerator significantly.

Primary author

Aleksandr Gorn (Budker Institute of Nuclear Physics, Novosibirsk, Russia)


Dr Alexey Petrenko (CERN) Prof. Konstantin Lotov (Novosibirsk State University)

Presentation materials