无人机航空γ能谱测量在地形高起伏地区异常查证中的应用

doi:10.11720/wtyht.2024.1565

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Abstract

In response to the need for large-scale exploration of radioactive minerals in high-relief areas, this study developed an airborne gamma-ray spectrometer based on small-sized NaI (Tl) crystals, which was integrated with the F-120 unmanned aerial vehicle (UAV) to form an airborne gamma-ray spectrometry (AGRS) system. The UAV-AGRS system was applied to the follow-up geochemical survey of uranium deposits in a certain area of South China. The survey results show roughly consistent locations and morphologies for high-anomaly zones with the ground gamma-ray spectrometry results. Moreover, the results of this study exhibit more detailed anomaly morphologies, and more significant responses of uranium content-related uranium channel data to known uranium occurrences in the study area, suggesting superior data. Therefore, the UAV-AGRS system shows promising potential as an effective alternative to ground gamma-ray spectrometry for the follow-up geochemical survey of uranium deposits in high-relief areas.

Key words： unmanned aerial vehicle (UAV) airborne gamma-ray spectrometry (AGRS) high-relief area follow-up geochemical survey

Received: 27 December 2023 Published: 21 October 2024

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	Articles by authors
	Hui-Rong ZHONG
	Cheng-Zhi YANG
	Qing-Hua YANG
	Chao XIN
	Lei YANG
	Wei WANG

Cite this article:

Hui-Rong ZHONG,Cheng-Zhi YANG,Qing-Hua YANG, et al. Application of the unmanned aerial vehicle-airborne gamma-ray spectrometry system to follow-up geochemical surveys in high-relief areas[J]. Geophysical and Geochemical Exploration, 2024, 48(5): 1268-1274.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2024.1565 OR https://www.wutanyuhuatan.com/EN/Y2024/V48/I5/1268

Drone aviation γ schematic diagram of energy spectrometer

Schematic diagram of aviation γ spectrometry system and cosmic ray background measurement of UAV

Field photo of instrument background measurement

UAV aviation γ spectrometry system and cosmic ray background value

Workflow diagram of UAV aerial γ spectrum measurement

Drone aviation γ energy spectrum measurement data processing flowchart

Stripping coefficient

Height attenuation correction coefficient

Instrument sensitivity coefficient

Drone aviation γ energy spectrum measurement results

Average results statistics of UAV aerial γ spectrum measurement and ground gamma spectrum measurement

Drone aviation γ energy spectrum measurement and ground γ comparison curve of energy spectrometer measurement results

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