A 0.2-MW Furnace for Spectroscopic Studies

Area of Science:

• Atomic and Molecular Physics
• Spectroscopy
• Physical Chemistry

Background:

• Accurate determination of oscillator strengths is crucial for understanding atomic and molecular processes.
• Traditional methods may face limitations in precision and signal-to-noise ratio.
• Development of advanced experimental setups is needed for improved spectral measurements.

Purpose of the Study:

• To describe the design and implementation of a large King furnace for absorption spectroscopy.
• To evaluate the performance of the furnace in conjunction with a low-noise spectrometer.
• To demonstrate the capability for precise measurement of relative oscillator strengths.

Main Methods:

• Utilized a large King furnace for high-temperature absorption experiments.
• Employed the Oxford low-noise spectrometer for spectral line detection.
• Analyzed absorption traces to determine relative oscillator strengths.
• Characterized the noise performance of the spectroscopic apparatus.

Main Results:

• The King furnace design criteria were successfully addressed.
• Representative absorption line traces were obtained with high fidelity.
• Achieved an rms noise level of 0.03% of the continuum at 4427 Å.
• Demonstrated a resolving power of lambda/Deltalambda = 1.1 x 10^5 with a 16-second integration time per point.

Conclusions:

• The developed King furnace is suitable for accurate relative oscillator strength measurements via absorption.
• The combination with the Oxford low-noise spectrometer provides excellent sensitivity and resolution.
• The experimental setup offers a valuable tool for spectroscopic studies in atomic and molecular physics.