Measurement of Dysprosium Stark Width and the Electron Impact Width Parameter

Area of Science:

• Atomic and Plasma Physics
• Spectroscopy
• Laser-Induced Breakdown Spectroscopy (LIBS)

Background:

• Accurate determination of atomic parameters is crucial for plasma diagnostics.
• Existing literature has gaps in impact parameter data, especially for heavy elements like dysprosium.
• Laser ablation in controlled atmospheres is a common method for generating analytical plasmas.

Purpose of the Study:

• To propose and validate a methodology for determining the impact parameter of neutral dysprosium emission lines.
• To address the scarcity of impact parameter data for heavy elements in spectroscopic literature.
• To utilize laser-induced plasma characterization for elemental analysis.

Main Methods:

• Characterization of laser-induced plasma in an argon-filled sealed chamber.
• Application of established spectroscopic methods for plasma temperature, electron density, and species concentration.
• Estimation of the impact electron parameter for neutral dysprosium spectral lines.

Main Results:

• Successfully estimated the impact electron parameter for nine spectral lines of neutral dysprosium.
• Achieved plasma conditions with an electron density of 3.1 × 10^18 cm^-3 and a temperature of approximately 10^4 K.
• Demonstrated the feasibility of the proposed spectroscopic methodology.

Conclusions:

• The developed methodology provides a reliable way to determine impact parameters for neutral dysprosium.
• This work contributes valuable data to fill existing gaps in spectroscopic parameters for heavy elements.
• The proposed method has implications for advanced plasma diagnostics and elemental analysis.