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Updated: Oct 11, 2025

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
Published on: February 14, 2014
Time resolved plasma diagnostics for pulsed 2.45 GHz hydrogen discharges
A Megía-Macías1, E Barrios-Díaz2, O D Cortázar2
1Institute for Research in Technology, ICAI, Comillas Pontifical University, c/Santa Cruz de Marcenado 26, 28015 Madrid, Spain.
This review covers advances in temporal plasma diagnostics for pulsed microwave hydrogen discharges. Key findings focus on breakdown, decay, and plasma properties for ion source applications.
Area of Science:
- Physics
- Plasma Science
- Spectroscopy
Background:
- Pulsed microwave-driven hydrogen discharges are crucial for applications like ion sources.
- Understanding plasma behavior during breakdown and decay is essential for optimizing these systems.
- Temporal resolved diagnostics are key to studying fast plasma phenomena.
Purpose of the Study:
- To review advancements in temporal plasma diagnostics over the past decade.
- To highlight specific phenomena in breakdown and decay processes relevant to ion sources.
- To detail measurement techniques for plasma temperature and density.
Main Methods:
- Vacuum ultraviolet spectroscopy for plasma characterization.
- Ultra-fast photography for visualizing transient plasma events.
- Ion mass spectroscopy for analyzing ion species and their dynamics.
Main Results:
- Detailed examination of breakdown and decay dynamics in pulsed hydrogen plasmas.
- Exploration of specific phenomena with potential applications in ion sources.
- Presentation of measurement examples and results for plasma temperature and density.
Conclusions:
- Significant progress has been made in temporal plasma diagnostics for pulsed microwave hydrogen discharges.
- These diagnostic techniques provide valuable insights into plasma behavior for ion source development.
- Further research can leverage these methods to enhance plasma-based technologies.
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