无人机航空γ能谱测量系统的研制
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摘要
航空放射性测量始于20世纪40年代,最初使用盖革-米勒计数管仅作放射性总量测量。NaI(Tl)探测器在20世纪50年代研制成功,随后四道(总量-TC、钾-K、铀-U、钍-Th)、多道(256道)航空γ能谱测量仪问世。目前无人机超低空飞行技术已趋于成熟,搭载航空γ能谱测量系统用于航空放射性测量前景广阔,特别是在核应急应用中优势更为明显。但无人机有效载荷及空间很小,传统仪器的体积、重量均与无人机无法匹配。新研制的无人机航空γ能谱测量系统充分利用了高度集成的微处理技术,在无人机上已完成8 000测线千米的资源调查测量,应用效果较好。
Airborne radiometric survey began in twentieth Century forty years,it used the GeigerMiller counter only for radioactivity survey of total initially.NaT(T1) detector successfully developed in twentieth Century fifty years,then the four channel(total count-TC,potassium-K,uranium-U,thorium-Th),multichannel(256) airborne gamma ray spectrum surveying instrument appeared.At present,the UAV low altitude flight technology has become mature,airborne radiometric survey with the gamma ray spectrum measurement system has broad prospects,the advantages are more obvious especially in the nuclear emergency state.But the payloads and space of UAV are very small,the volume and weight of traditional instruments are unable to match the UAV.The development of new UAV airborne gamma ray spectrum survering instrument make full use of the highly integrated micro processing technology,it has completed 8 000 line km in the resource survey by UAV,the application effect is preferably.
引文
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