一种铀裂变瞬发中子测井的中子时间谱死时间修正方法
By using a dual 3He proportional counter tube detector in uranium fission transient neutron logging, setting a time period "window," and establishing a dead time correction formula, the deviation problem of detector dead time correction was solved, and the analytical accuracy of uranium fission transient neutron logging was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- EAST CHINA UNIV OF TECH
- Filing Date
- 2023-03-21
- Publication Date
- 2026-07-17
AI Technical Summary
In existing uranium fission transient neutron logging, the detector dead time correction method has a bias, resulting in low analytical accuracy, which is particularly significant under high count rate conditions.
A new formula and correction method for obtaining the dead time is established by using a dual 3He proportional counter tube detector and setting different time periods of "window". This includes data processing, the establishment of the detector dead time formula and the correction of the neutron time spectrum. It is applicable to 3He proportional counter tubes and BF3 detectors.
It significantly improves the analytical accuracy of uranium fission transient neutron logging, overcomes the influence of detector dead time under high count rates, and improves logging accuracy.
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Figure CN116125548B_ABST