Design method of high-integration PGNAA element detector for deep space exploration
The highly integrated PGNAA detector uses an isotope neutron source and a BGO detector, combined with soil moderation, to solve the problems of large size and heavy weight of traditional devices, and realize efficient and accurate elemental analysis in deep space exploration.
CN120741533APending Publication Date: 2025-10-03LANZHOU UNIV
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Patent Information
- Application Number
- CN202510918390.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-03
- Publication Date
- 2025-10-03
AI Technical Summary
Technical Problem
The existing PGNAA device is large in size and heavy in weight, making it difficult to achieve efficient and portable elemental analysis in deep space exploration.
Method used
A highly integrated PGNAA element detector is designed with a compact structure. It uses an isotope neutron source and a BGO detector. The moderator is removed and the neutrons are moderated by the soil itself. Monte Carlo simulation is combined to optimize the component size, improve the signal-to-noise ratio and measurement accuracy.
Benefits of technology
It realizes miniaturized and portable element detection, shortens measurement time, improves measurement accuracy and sensitivity, and is suitable for close-range element measurement of the lunar rover's robotic arm.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a design method of a high-integration PGNAA element detector for deep space exploration, aiming at the optimization design of a PGNAA device, each module assembly is designed and combined through a compact structure, a moderator structure of a conventional PGNAA element detector is removed, the function of a moderator is replaced by a detection sample, and the design of the high-integration PGNAA element detector for deep space exploration is realized. According to the invention, the quality factor Q is used as an optimization criterion, and the size of the neutron shielding body is optimized, so that the PGNAA element detector has the advantages of high integration, small size, good portability and the like, and can be mounted on a mechanical arm of the lunar vehicle to measure the type, content and distribution of lunar soil elements along with the movement of the lunar vehicle.
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