X荧光测井探管的研制及其初步应用  

THE DEVELOPMENT AND PRELIMINARY APPLICATION OF THE EXPLORING TUBE FOR XRF LOGGING

作　　者：杨强[1] 葛良全[1] 赖万昌[1] 任翔[1] 谷懿[1] 

机构地区：[1]成都理工大学核技术与自动化工程学院,四川成都610059

出　　处：《物探与化探》2010年第4期508-511,共4页Geophysical and Geochemical Exploration

基　　金：中国地质调查局工作项目(1212010706501)资助

摘　　要：介绍了新一代荧光测井仪中核心部件探管部分的硬件和软件。荧光测井探管采用Si-PIN半导体探测器,探头部分设计成斜边对称双源激发结构,控制核心使用嵌入式ARM7处理器,通信协议采用RS485,最大可测量深度2 km。本系统在四川省会理县拉拉铜矿地区进行了野外应用,实验表明,荧光测井系统能够快速得出井壁岩、矿石中元素的含量,为寻找深部矿产资源提供了一种快捷的分析方法。This paper describes the hardware and software of the probe,the core component of the new generation X-ray fluorescence logging instrument.Si-PIN semiconductor detector has been adopted in XRF logging probe and a structure fixing the excitation source on both sides of the detector has been designed.In this system,the ARM7 microprocessor is used as a control core,and RS485 is employed as communication protocol,with the maximum measurable depth being 2 000 meters below the ground.This system was tentatively applied in the Lala copper mine of Huili County,Sichuan Province,and the results show that the X-ray fluorescence logging instrument can obtain the content of elements in various ores within rocks and sidewalls rapidly.Hence this system provides an effective analytical method for exploring deeper resources.

关 键 词：X荧光 测井技术 半导体探测器 原位测量 

分 类 号：P631.6[天文地球—地质矿产勘探]