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1. Experimental parameters for plasma wakefield acceleration in a narrow plasma column

   https://doi.org/10.1088/1742-6596/3124/1/012009  

   Lee, V; Diederichs, S; Ariniello, R; Benedetti, C; Esarey, E; Gessner, S; Hogan, M; O’Shea, B; Osterhoff, J; chroeder, C S; et al (September 2025, Journal of Physics: Conference Series)

   Abstract Recent theoretical advancements propose multiple positron acceleration schemes in plasma wakefield acceleration (PWFA). One of the most promising ideas involves the creation of an electron-driven blowout wake within a finite-radius pre-ionized plasma column. This leads to the formation of an elongated region of sheath electrons at the closing of the first wake period capable of accelerating positrons while simultaneously providing a transverse focusing force. Additionally, the proposed scheme has shown to be a potential means of suppressing instabilities. We present an experimental opportunity to explore the narrow column PWFA at the Facility for Advanced Accelerator Experimental Tests II (FACET-II): the E333 experiment. As a pivotal first step towards achieving positron acceleration in PWFA, we have planned a precursor experiment utilizing the currently available single-bunch electron beam to study the physics of the narrow plasma PWFA scheme. We outline the feasible experimental parameters, including beam and ionization laser parameters, along with the required laser optics for the experiment. The primary observable signatures for this stage of the experiment are the final energy spectrum and transverse position of the electron bunch, anticipating reduced energy loss and enhanced beam guidance in the narrow plasma column compared to the nominal PWFA. Comprehensive simulations are used to detail our experimental plan. 

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2. Turbulent Magnetogenesis in a Collisionless Plasma

   https://doi.org/10.3847/2041-8213/ac36cf  

   Pucci, F.; Viviani, M.; Valentini, F.; Lapenta, G.; Matthaeus, W. H.; Servidio, S. (November 2021, The Astrophysical journal)

   We demonstrate an efficient mechanism for generating magnetic fields in turbulent, collisionless plasmas. By using fully kinetic, particle-in-cell simulations of an initially nonmagnetized plasma, we inspect the genesis of magnetization, in a nonlinear regime. The complex motion is initiated via a Taylor–Green vortex, and the plasma locally develops strong electron temperature anisotropy, due to the strain tensor of the turbulent flow. Subsequently, in a domino effect, the anisotropy triggers a Weibel instability, localized in space. In such active wave–particle interaction regions, the seed magnetic field grows exponentially and spreads to larger scales due to the interaction with the underlying stirring motion. Such a self-feeding process might explain magnetogenesis in a variety of astrophysical plasmas, wherever turbulence is present. 

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3. Precision alignment and tolerance of a plasma wakefield accelerator in a laser-ionized plasma source

   https://doi.org/10.1103/tgby-pksc  

   Lee, Valentina; Ariniello, Robert; Storey, Douglas; Corde, Sébastien; Emma, Claudio; Gessner, Spencer; Hogan, Mark; Knetsch, Alexander; Majernik, Nathan; O’Shea, Brendan; et al (February 2026, Physical Review Accelerators and Beams)
4. Investigation of high field plasma dynamics in a laser-produced plasma expanding into a background gas

   https://doi.org/10.1063/5.0193271  

   White, Z K; Xu, K G; Thakur, S Chakraborty (April 2024, Physics of Plasmas)

   This paper presents an overview of experimental results of a laser-produced plasma expanding into a background gas, immersed within a large range of highly uniform magnetic fields (of up to 3 T), that are transverse to the expanding plasma. We used intensified gated imaging to capture the expansion of the plasma across and along the magnetic field lines to observe the spatiotemporal expansion dynamics for different magnetic field strengths. We observe changes in the perpendicular and parallel dynamics of the laser-produced plasmas expansion at high magnetic field. In addition, our results have also indicated the presence of electron-ion hybrid instabilities at relatively high pressures (100 mTorr) and relatively high magnetic field strengths (2 T), in accordance with theoretical calculations. 

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5. The influence of carrier gas on plasma properties and hydrogen peroxide production in a nanosecond pulsed plasma discharge generated in a water-film plasma reactor

   https://doi.org/10.1088/1361-6463/aaa835  

   Wang, Huihui; Wandell, Robert J; Locke, Bruce R (March 2018, Journal of Physics D: Applied Physics)