一种新的便携式瞬时土壤测氡仪的研制  

Development of a portable instantaneous soil radon measurement instrument

作　　者：王玉双[1] 葛良全[1] 姜海静[1] 林延畅[1] 

机构地区：[1]成都理工大学核技术与自动化工程学院,成都610059

出　　处：《核电子学与探测技术》2007年第1期96-99,共4页Nuclear Electronics & Detection Technology

基　　金：得到国家自然科学基金(40374051);四川省学术与技术带头培养基金项目(2200337)的资助

摘　　要：设计一套基于静电收集法的双道瞬时土壤测氡仪。采用单片机作为数据处理与控制单元,能在测量现场得出氡浓度测量结果。压强测量系统用于氡浓度校正;双道甄别器用于扣除RaA外的其他氡子体造成的干扰;LCD显示器提供友好人机界面;基于MCU的独立编码键盘方便用户对仪器进行操控与各种功能设置。该仪器具有体积小、成本低、探测灵敏度高等特点。A dual-channel instantaneous soil radon measurement instrument based on the method of electrostatic collection is designed. It has the features of small size, low cost, and high sensitivity, etc. A single chip microcomputer is adopted as the data processing and control unit.. The concentration of radon can be reported in field. The result is also corrected by the pressure sensing system. A double channel discriminator is used so that the detector can eliminate the interference from the progenies of radon except RaA. LCD and MCU based encoding keyboard are used to give users a friendly interface. Operating and function setting is easy.

关 键 词：瞬时测氡 双道甄别器 压强测量 编码键盘 

分 类 号：TL82[核科学技术—核技术及应用]