10–15 Aug 2025
SAFE Credit Union Convention Center
America/Los_Angeles timezone

Plasma Waves in Accelerators

TUP078
12 Aug 2025, 16:00
2h
SAFE Credit Union Convention Center

SAFE Credit Union Convention Center

1401 K St, Sacramento, CA 95814
Poster Presentation MC5 – Beam Dynamics and EM Fields TUP: Tuesday Poster Session

Speaker

Hannah McCright (University of Maryland, College Park)

Description

This work presents new insights into the formation and propagation of solitons in the University of Maryland Electron Ring (UMER), using a combination of theory, Particle-In-Cell (PIC) simulation, and experimental validation. Soliton dynamics in the electron beam are modeled via the Korteweg–de Vries (KdV) equation, capturing the balance between nonlinearity and dispersion inherent in space-charge-dominated beams confined within a conducting beam pipe.
We report the first-ever characterization of dark (negative) solitons in an accelerator, emerging from negative perturbations in a regime of negative dispersion. We also report observing oscillatory wave structures from the KdV equation for the first time in an accelerator, arising from negative beam perturbations in a positive dispersion regime. These results provide a unique platform for both exploring beam manipulation using soliton-based mechanisms, and for exploring fundamental nonlinear wave dynamics relevant to other complex environments such as space plasmas.

Funding Agency

DOE HEP grants: DE-SC0010301 and DE-SC0022009

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Author

Hannah McCright (University of Maryland, College Park)

Co-authors

Brian Beaudoin (University of Maryland, College Park) Irving Haber (University of Maryland, College Park) Patrick O'Shea (University of Maryland, College Park)

Presentation materials

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