α测氡法在地震流体监测中的可行性研究*
吴建平1,周健斌1,丁卫撑1,苏 辉2,张振勋2,李朝明3,郑国庆4

(1.成都理工大学 核技术与自动化工程学院 四川省地学核技术重点实验室,四川 成都 610059; 2.四川省地震局 西昌地震中心站,四川 西昌 615000; 3.中国地震局 滇西地震预报实验场,云南 大理 671000; 4.云南省澜沧县地震局,云南 澜沧 665600)

测氡; α谱仪; 自动监测; 地震前兆

Feasibility Study of α Radon Measurement Technique in the Seismic Underground Fluid
WU Jian-ping1,ZHOU Jian-bin1,DING Wei-cheng1,SU Hui2,

(1. Geology Nuclear Technology Key Laboratory of Sichuan Province,College of Applied Nuclear Technology and Automation Engineering,Chengdu University of Technology,Chengdu 650059,Sichuan,China)(2. Xichang Seismic Center,Earthquake Administration of Sichuan Province,Xichang 615000,Sichuan,China)(3. The Western Yunnan Earthquake Prediction Area,CEA,Dali 671000,Yunnan,China)(4. Earthquake Administration of Lancang County,Lancang 665600,Yunnan,China)

radon measurement; alpha spectrometer; automatic monitoring; earthquake precursor

备注

KJD-2000R α谱仪是采用半导体探测器、利用核谱测量技术与嵌入式技术研制的新型测氡仪,是一种简便快速的测量氡气及氡子体的仪器。该仪器利用静电收集氡衰变子体进行测量,体积小,灵敏度高,操作方便,还可进行连续测氡与瞬时测氡以及α谱的测量。将该仪器用于地震流体监测,并总结出了测量在理论认识和实际应用中存在的问题,讨论了氡监测的原理和实践经验,以有助于促进氡测量方法的发展。

A new alpha spectrometer,model KJD-2000R with the semiconductor,was manufactured with the technology of the nuclear spectrum acquisition system and embedded system. The spectrometer works based on the electrostatic-collection method. It has high sensitivity,small volume and easy to operate. The spectrometer can measure radon and radon daughters in a simple and fast way. It can be applied to the continuous measurement,instantaneous measurement,α-spectrum measurement and the underground fluid monitoring.