Groundwater, Radon Continuous Monitoring System (α-scintillation Counting) for Natural Hazard Surveillance
Groundwater, Radon Continuous Monitoring System (α-scintillation Counting) for Natural Hazard Surveillance
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DOI：
10.1007/s000240050006
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发表时间：
2000-03
影响因子：
2
通讯作者：
G. Galli;C. Mancini;F. Quattrocchi
中科院分区：
文献类型：
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作者：
G. Galli;C. Mancini;F. Quattrocchi
—在 DINCE 和 ING 之间的合作下，设计、组装和测试了一种“准连续模式”监测系统，用于测量自然环境（主要是地下水）内的氡气浓度，部分是在两个 EC 资助项目的框架内。¶氡气监测器由一个定制的离散自动采样器（可产生气体通量电路）和一个经济的 α-闪烁池，以及可靠的电子光电倍增器组件组成。建立了方便的校准系统和临时控制系统。系统的总体“平均效率”计算为每个 Bq/L 每分钟 7.79±0.13 次计数 (cpm)。¶考虑到地球化学监测网络当前和未来评估自然灾害的要求，原型设计是从对专门用于监测氡气浓度水平的现有系统的研究演变而来的，本文对此进行了严格审查。¶为了满足远程站的主要先决条件：最大限度地提高远程传感器的多功能性，保留网络的共享软件和硬件作为总体而言，该氡气监测系统被认为是多参数地球化学监测系统（GMS II）原型的一部分，被设计和实现为测试标准传感器（专用于化学、水文、地球物理、有机化学等），并在国际市场上不断发展。
—A “quasi continuous mode” monitoring system to measure the radon concentration within a natural environment (mainly groundwater), was designed, assembled and tested, under collaboration between DINCE and ING, partly within the framework of two EC funded programs.¶The radon monitor consists of a customised discrete automatic sampler which produces a gas flux circuit, and an economicalα-scintillation cell, coupled with a reliable electronics-photomultiplier assemblage. A convenient calibration system together with a temporised control system have been set up. The overall “mean efficiency” of the system was calculated to be 7.79±0.13 counts per minute (cpm) for each Bq/L.¶Taking into consideration the present and future requirements of a geochemical surveillance network to assess natural hazards, the prototype design evolved from the study of existing systems devoted to monitor radon concentration levels, which are critically reviewed within this paper.¶In response to the main prerequisite of a remote station: maximum remote sensor versatility preserving shared software and hardware for the network as a whole, this radon monitoring system was conceived as part of a multi-parametricGeochemical Monitoring System(GMS II) prototype, designed and realised as atest-standfor sensors (chemical, hydrological, geophysical, organic chemistry devoted, etc.) in continuous evolution throughout the international market.