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本文简述了氡气测量的基本原理、野外工作方法及相关技术要求。以FD-3017A型RaA测氡仪在贵州土城矿采空区的试验和在河阳乡采空区的应用为实例,表明利用FD-3017A型RaA型测氡仪对采空区的探测具有很好的效果,该方法对测试场地的适用性很强,不受地电地磁影响,探测深度较大,工作方法简单,具有广泛的应用前景。 相似文献
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《物探化探计算技术》2011,(5):F0002-F0002
KJD-2000R测氡仪
该仪器是一种新型的连续测氡仪器,属标准测量方法之一,它利用静电收集氡衰变子体进行累积测量,灵敏度高,现场获取结果,体积小、重量轻、测量时间短、探测器无污染、性能稳定。 相似文献
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《华东地质学院学报》1984,(2)
随着铀矿找矿工作的深入,找矿难度的增大,“攻深找盲”的问题尤为突出。近年来,我院物探系师生围绕着铀矿“攻深找盲”开展了一系列科研活动,从野外到室内,从找矿仪器的研制到异常判别,从异常的定性解释到半定量、定量多信息的研究,逐步摸索和研制了一套行之有效的寻找盲矿体的新方法。放射性物探教研室付主任周瑞工程师提出的~(218)Po 法测氡找矿方法。并由仪器教研室何为民工程师研制了新的~(218)Po 测氡仪。从1982年以来应用该测氡仪在不同类型(花岗岩型、 相似文献
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《物探化探计算技术》2012,(2):2
<正>KJD-2000R测氡仪该仪器是一种新型的连续测氡仪器,属标准测量方法之一,它利用静电收集氡衰变子体进行累积测量,灵敏度高,现场获取结果,体积小、重量轻、测量时间短、探测器无污染、性能稳定。广泛适用于室内测氡、土壤中测氡、水中氡测量、水中镭测量。在地质隐伏断裂揭示、地质工程、建筑测 相似文献
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本文介绍了由核工业北京地质研究院仪器研究中心研制的FDY-9601微机测氡仪。它是一种借助于经过加压极化处理过的聚酯薄膜片收集氡衰变产生的子体218Po(RaA),并测量其放出的α射线强度的微机测氡仪。 相似文献
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地面γ能谱和α杯测量在寻找铀(金,铜)矿产中的应用 总被引:1,自引:0,他引:1
文章介绍了CD-3型微机化地面γ能谱测量仪和CD-1型α杯仪在康滇地轴中南段铀成矿条件研究中的应用。论述了新一代地面γ能谱仪和累积测氡仪是解决有关地质问题的有力手段。特别是多参数测量能提供有关地质体更多的信息。 相似文献
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《Physics and Chemistry of the Earth, Part A: Solid Earth and Geodesy》2000,25(12):805-807
The intensive use of Very Long Baseline Interferometry (VLBI), as well as Satellite and Lunar Laser Ranging (SLR, LLR) and the GPS-System allows for a precise monitoring of the current variations in earth rotation. The precision for the VLBI-system is as high as one part in 109 for a 24 hour measurement campaign. Since all these techniques are based on external reference frames, it is desirable to develop inertial sensors to the same resolution. Ring laser gyroscopes have the potential to be used for that purpose. The basic idea is to scale up the area surrounded by the two counter-rotating laser beams in order to gain higher sensitivity for the instrument with respect to the rotation rate. The Canterbury Ring Laser (C-I) consisting of a square of area 0.755 m2 has shown that ring lasers with a perimeter more than 60 cm are possible, in that the occurrence of more than one longitudinal mode of operation could be avoided by reducing the power of the circulating beams (Bilger et al., 1993). The next instrument C-II with an area of 1 m2 demonstrated many of the mechanical requirements for a stable instrument. It was constructed from a monolithic block of Zerodur, so that the size of the area does not change under temperature variations. A successfully built prototype for a large ring (G0) finally proved that it is possible to build a ring laser gyroscope with at least 14 m length of cavity (Rowe et al., 1999). This means that most of the demands for a highly sensitive inertial earth rotation sensor are met. On this basis a high resolution and highly stable instrument, suitable for geophysical applications, can be constructed. 相似文献
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Sébastien Massart Daniel Cariolle Vincent-Henri Peuch 《Comptes Rendus Geoscience》2005,337(15):1305-1310
Data assimilation plays an important role in the analysis of atmospheric data, in particular for numerical weather prediction and the detection of climate variations. In the field of atmospheric chemistry, assimilation techniques have been recently developed to study the distribution of tracer species, with emphasis on the ozone content. The present work reports on assimilation experiments of vertical ozone profiles from the GOME instrument performed with MOCAGE, a chemical-transport model and a 3D-FGAT variational technique. It is shown that this technique is very well adapted for ozone assimilation and can be extended to various sensors or other trace species. To cite this article: S. Massart et al., C. R. Geoscience 337 (2005). 相似文献
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分析仪器小型化、现场化、瞬间化、智能化是未来地质调查重要支撑技术,这里采用新型SI-PIN探测器,研制出了便携式X荧光分析仪,并对地质土壤、水系沉积物样品中Ti、V、Cr、Mn、Fe、Co、Ni、Cu、Zn、As、Rb、Sr、Y、Zr、Nb、Pb等多种元素进行了分析研究。这里主要介绍了该仪器的技术指标、性能以及软件功能,给出了分析条件选择、干扰和校正、漂移校正的方法,该方法在国家工矿企业的现场分析工作中具有良好的应用前景。 相似文献
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Declan G. De Paor 《Journal of Structural Geology》1984,6(3):335-337
By combining a compass, counterweight and gimbal, an instrument for simultaneous measurement of dip, strike, pitch, plunge and trend data has been constructed. The instrument automatically locates the strike of the surface on which it is placed. It may serve as a useful teaching aid in the structural laboratory. 相似文献