一种用于中子和光子混合辐射检测的个人剂量计及检测方法
By employing paired 6Li and 7Li thermoluminescent detectors and neutron moderators in a personal dosimeter, combined with multi-channel fitting technology, the problem of inaccurate dosimeter response in a neutron-photon mixed radiation field was solved, enabling accurate separation and assessment of neutron and photon doses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA INST FOR RADIATION PROTECTION
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-17
AI Technical Summary
Existing neutron dosimeters suffer from narrow response range, large gamma interference, and high measurement uncertainty in neutron-photon mixed radiation fields, leading to misjudgment, underestimation, or overestimation of personal neutron dose.
Using paired 6Li and 7Li thermoluminescent detectors, combined with a neutron absorber with a double-groove structure, a neutron moderator, and a solid track detector, the individual dose equivalent is calculated through multi-channel fitting, and the dose contribution of neutrons and photons is evaluated separately.
It achieves dose decoupling and quantitative differentiation between neutrons and photons in mixed radiation fields, improving the accuracy, stability and reliability of dose measurement, and adapting to the refined protection needs of complex radiation fields.
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Figure CN121028166B_ABST