Mar 11, 2025 · An international team of scientists has photographed plasma instability for the first time, revealing striking new images of electron beams forming spaghetti-like filaments.

Strong radial magnetic fields can make a plasma pinch like the hourglass-shaped nebula above; produce characteristic filaments like in the plasma ball (top row); and produce particle beams as seen in the dense plasma focus. Introduction 1. What is plasma? 2. Where is plasma? 3. Why is plasma so? 4. Electrified

Mar 7, 2025 · For the first time, scientists have 'photographed' a rare plasma instability, where high-energy electron beams form into spaghetti-like filaments.

Plasma physics has recently opened up new vistas in astronomy based on the interaction of electric and magnetic fields in plasma filaments and sheets [1]. As spacecraft and telescopes have examined the structure of our own Galaxy, the Milky Way, astronomers received a surprise.

Feb 14, 2020 · We present what is understood about how ELMs form, their filamentary nature and the mechanisms that transport heat and particles to the first wall of the tokamak. We also discuss methods to...

Nov 25, 2022 · In this work, new evidence and information about both the origin and evolution of filamentary structures observed in the current sheath of a small plasma focus (PF) discharge are reported. The experiments were carried out in a small generator of low energy (multipurpose generator) at the PF configuration, under different operating conditions.

Feb 14, 2024 · This work reports the measurement of two-dimensional electron properties over a nanosecond scale integration time across a femtosecond laser-induced plasma filament in atmospheric pressure...

Mar 1, 2005 · In this paper, we report experimental results concerning the long propagation of IR multi-terawatt laser pulses on a horizontal path. Measurements are performed as a function of initial laser chirp. We are particularly interested in measuring the length over which ionised plasma channels are formed.

Apr 3, 2024 · Understanding the dynamics of these filaments, referred to as blobs, is crucial for predicting and controlling their impact on reactor performance. To achieve this, highly resolved passive fast camera measurements have been conducted on the COMPASS tokamak.

Feb 18, 2025 · We describe the generation of plasma filaments for application in plasma-based particle accelerators. The complete characterization of a plasma filament generated by a low-energy self-guided femtosecond laser pulse is studied experimentally and theoretically in a low-pressure nitrogen gas environment.