A Novel Semiautomatic Interpretation Model for Impulse Neutron Oxygen Activation Time Spectrum Data

Area of Science:

• Nuclear geophysics
• Formation evaluation

Background:

• Manual interpretation of impulse neutron oxygen activation time spectra is labor-intensive.
• Existing models lack adaptive capabilities for peak and background range selection.

Purpose of the Study:

• To develop an adaptive interpretation model for impulse neutron oxygen activation time spectra.
• To reduce manual labor and maintain interpretation precision in spectral analysis.

Main Methods:

• Proposed an adaptive selection rule for the background segment.
• Developed a semiautomatic interpretation model combining the adaptive background segment rule and existing background segment interpretation models.
• Implemented an algorithm to automatically determine the background segment and calculate transit time and volume flow.

Main Results:

• The adaptive model successfully determined the background segment without manual intervention.
• The semiautomatic model retained the interpretation precision of traditional background interpretation models.
• Labor intensity for interpretation operators was significantly reduced.

Conclusions:

• The developed semiautomatic interpretation model offers an efficient and precise method for analyzing impulse neutron oxygen activation time spectra.
• Adaptive background segment selection enhances the usability of spectral analysis tools in formation evaluation.