Stable electron beams from laser wakefield acceleration with few-terawatt driver using a supersonic air jet

0501812 - FZÚ 2019 RIV NL eng J - Journal Article
Boháček, Karel - Kozlová, Michaela - Nejdl, Jaroslav - Chaulagain, Uddhab P. - Horný, Vojtěch - Krůs, Miroslav - Ta Phuoc, Kim
Stable electron beams from laser wakefield acceleration with few-terawatt driver using a supersonic air jet.
Nuclear Instruments & Methods in Physics Research Section A. Roč. 883, Mar (2018), s. 24-28. ISSN 0168-9002. E-ISSN 1872-9576
R&D Projects: GA MŠMT LQ1606; GA ČR GA15-03118S; GA MŠMT(CZ) LM2015083
Institutional support: RVO:68378271 ; RVO:61389021
Keywords : radiography * profile * electron beams * femtosecond laser * laser-plasma interaction * laser wakefield accelerator
OECD category: Optics (including laser optics and quantum optics); Fluids and plasma physics (including surface physics) (UFP-V)
Impact factor: 1.433, year: 2018

The generation of stable electron beams produced by the laser wakefield acceleration mechanism with a few-terawatt laser system (600 mJ, 50 fs) in a supersonic synthetic air jet is reported and the requirements necessary to build such a stable electron source are experimentally investigated in conditions near the bubble regime threshold. The resulting electron beams have stable energies of (17.4 ± 1.1) MeV and an energy spread of (13.5 ± 1.5) MeV (FWHM), which has been achieved by optimizing the properties of the supersonic gas jet target for the given laser system. Due to the availability of few-terawatt laser systems in many laboratories around the world these stable electron beams open possibilities for applications of this type of particle source.
Permanent Link: http://hdl.handle.net/11104/0293797