新型AGRSS航空伽玛能谱测量系统设计及其性能测试
|
摘要
新型AGRSS航空伽玛能谱测量系统(简称AGRSS)采用自主开发的数字化多道分析器和数据通讯技术,实现了对航空伽玛能谱测量过程中航放数据的采集与控制,并且系统的设计易于维护和升级.文中详细介绍了AGRSS系统的组成、主要性能指标,校准与测试等方面的内容.AGRSS系统主要包括3箱Na I(Tl)晶体,航空伽玛能谱多道分析器和通讯接口、航空物探综合测量收录系统、电源分配器和辅助设备等.对AGRSS进行长时间测量和试验区测试飞行,测试了其性能.测试结果表明,该系统的技术指标达到或优于航空伽玛能谱测量规范要求,其性能稳定、具有较好的一致性,采集的数据信息可信.成功研发的AGRSS航空伽玛能谱测量系统可以在地质填图、区域地质研究和寻找放射性矿产方面发挥其特有的作用.
Using digital multi-channel analyzer and data communication technology developed by Airborne Survey and Remote Sensing Center of Nuclear Industry, radioactive data of airborne survey can be recorded and controlled with the new airborne gamma ray spectrometry system( AGRSS). Maintenance and upgrade of the system are easier. This paper describes the component,main performance, calibration and test of AGRSS.AGRSS system mainly includes 3 boxes of Na I( Tl) crystal,aerial gamma spectrum multichannel analyzer and communication interface,recording system and auxiliary equipment. Through long time measurement and test flight,its performance was tested. The window data of spectrum changed between- 0. 94% ~ 0. 94%,the change of peak positions of208Tl( 2. 614 Me V) is less than 0. 6channel; Down and up crystal resolution for137Cs( 0. 662 Me V)were 9. 66% and 9. 63% respectively; Stripping coefficient for each window( α、β、γ) were 0. 3067,0. 3827,0. 7477 respectively;Equivalent height gamma attenuation coefficient of TC,K,U,Th window were 0. 0068( m- 1),0. 0090( m- 1),0. 0083( m- 1),0. 0063( m- 1) respectively; Relative deviation of twice total count of test flight is 13. 11%,potassium content is 9. 04%,uranium content is 1. 55%,and thorium content is 6. 50%. Test results show that the technical indexes can meet or are better than the airborne gamma ray spectrometry specifications. The system has a stable performance and a good consistency, data collection is credible. AGRSS can exert its role in the field of geological mapping, regional geological research and radioactive minerals exploration.
Using digital multi-channel analyzer and data communication technology developed by Airborne Survey and Remote Sensing Center of Nuclear Industry, radioactive data of airborne survey can be recorded and controlled with the new airborne gamma ray spectrometry system( AGRSS). Maintenance and upgrade of the system are easier. This paper describes the component,main performance, calibration and test of AGRSS.AGRSS system mainly includes 3 boxes of Na I( Tl) crystal,aerial gamma spectrum multichannel analyzer and communication interface,recording system and auxiliary equipment. Through long time measurement and test flight,its performance was tested. The window data of spectrum changed between- 0. 94% ~ 0. 94%,the change of peak positions of208Tl( 2. 614 Me V) is less than 0. 6channel; Down and up crystal resolution for137Cs( 0. 662 Me V)were 9. 66% and 9. 63% respectively; Stripping coefficient for each window( α、β、γ) were 0. 3067,0. 3827,0. 7477 respectively;Equivalent height gamma attenuation coefficient of TC,K,U,Th window were 0. 0068( m- 1),0. 0090( m- 1),0. 0083( m- 1),0. 0063( m- 1) respectively; Relative deviation of twice total count of test flight is 13. 11%,potassium content is 9. 04%,uranium content is 1. 55%,and thorium content is 6. 50%. Test results show that the technical indexes can meet or are better than the airborne gamma ray spectrometry specifications. The system has a stable performance and a good consistency, data collection is credible. AGRSS can exert its role in the field of geological mapping, regional geological research and radioactive minerals exploration.
引文
Commission on Science and Technology,and Industry for National Defense.2005.EJ/T 1032-2005 Nuclear Industry Standard of the People’s Republic of China:Specification for Airborne Gamma Ray Spectrometry(in Chinese)[S].Commission on Science and Technology,and Industry for National Defense,4-6.
Fang J Q,Tian Y,Yang J Z.2014.1∶50000 summary report of airborne geophysical survey in Wandashan-Taipingling Area in Heilongjiang(in Chinese)[R].39.
Ge L Q,Zeng G Q,Lai W C,et al.2011.The development of a digital airborne gamma-ray spectrometry[J].Nuclear Techniques(in Chinese),34(2):156-160.
IAEA.1991.Airborne gamma ray spectrometer surveying[R].Technical Reports Series,No.323.Vienna:International Atomic Energy Agency,36.
Li Y F,Zhao Y H.et al.1978.Radioactive Prospecting Method(in Chinese)[M].Beijing:Atomic Energy Press,105.
Liu Y H,Gu R K,Hou Z R.2002.Airborne radiometrics survey[J].Geophysical&Geochemical Exploration(in Chinese),26(4):250-252.
Luo Y,Mi Y H.2014.Calibration for airborne Gamma ray spectrometric survey and its procedure[J].Nuclear Electronics&Detection Technology(in Chinese),34(5):590-597.
Wan J H,Xiong S Q,Fan Z G.2011.The status and prospects of airborne gamma ray spectrometry technology and its application[J].Geophysical&Geochemical Exploration(in Chinese),36(3):386-391.
Wu H S,Tan C L.1994.Advance in radioactive(nuclear)geophysical exploration[J].Acta Geophysica Sinica(in Chinese),37(Supp.1):429-436.
Yang G Q,Shi Q Y,Yu B C.1994.Status and development of airborne geophysical exploration in China[J].Acta Geophysica Sinica(in Chinese),37(Supp.1):367-377.
Yu B C.1990.The development of airborne radiometric survey in China[J].Uranium Geology(in Chinese),6(2):99-103,119.
Zhou X H,Qiao G Z.2002.The introduction and application of the new generation airborne multi-channel gamma spectrometer[J].Geophysical&Geochemical Exploration(in Chinese),26(4):318-320,324.
房江奇,田宇,杨金政.2014.黑龙江完达山-太平岭地区1∶5万航空物探调查项目野外工作总结报告[R].39.
葛良全,曾国强,赖万昌,等.2011.航空数字γ能谱测量系统的研制[J].核技术,34(2):156-160.
国防科技工业委员会.2005.EJ/T 1032-2005中华人民共和国核行业标准:航空伽玛能谱测量规范[S].国防科技工业委员会,4-6.
李运祓,赵元洪,童纯涵,等.1978.放射性勘探方法[M].北京:原子能出版社,105.
刘裕华,顾仁康,候振荣.2002.航空放射性测量[J].物探与化探,26(4):250-252.
骆遥,米耀辉.2014.航空伽玛能谱测量系统标定技术与标定程序[J].核电子学与探测技术,34(5):590-597.
万建华,熊盛青,范正国.2011.航空伽马能谱测量方法技术现状与展望[J].物探与化探,36(3):386-391.
吴慧山,谈成龙.1994.放射性(核)地球物理勘查的进展[J].地球物理学报,37(增刊1):429-436.
杨光庆,石青云,于百川.1994.中国航空物探的现状和发展[J].地球物理学报,37(增刊1):367-377.
于百川.1990.我国航空放射性测量的进展[J].铀矿地质,6(2):99-103,119.
周锡华,乔广志.2002.新一代航空多道伽马能谱仪的引进和初步应用[J].物探与化探,26(4):318-320,324.
Fang J Q,Tian Y,Yang J Z.2014.1∶50000 summary report of airborne geophysical survey in Wandashan-Taipingling Area in Heilongjiang(in Chinese)[R].39.
Ge L Q,Zeng G Q,Lai W C,et al.2011.The development of a digital airborne gamma-ray spectrometry[J].Nuclear Techniques(in Chinese),34(2):156-160.
IAEA.1991.Airborne gamma ray spectrometer surveying[R].Technical Reports Series,No.323.Vienna:International Atomic Energy Agency,36.
Li Y F,Zhao Y H.et al.1978.Radioactive Prospecting Method(in Chinese)[M].Beijing:Atomic Energy Press,105.
Liu Y H,Gu R K,Hou Z R.2002.Airborne radiometrics survey[J].Geophysical&Geochemical Exploration(in Chinese),26(4):250-252.
Luo Y,Mi Y H.2014.Calibration for airborne Gamma ray spectrometric survey and its procedure[J].Nuclear Electronics&Detection Technology(in Chinese),34(5):590-597.
Wan J H,Xiong S Q,Fan Z G.2011.The status and prospects of airborne gamma ray spectrometry technology and its application[J].Geophysical&Geochemical Exploration(in Chinese),36(3):386-391.
Wu H S,Tan C L.1994.Advance in radioactive(nuclear)geophysical exploration[J].Acta Geophysica Sinica(in Chinese),37(Supp.1):429-436.
Yang G Q,Shi Q Y,Yu B C.1994.Status and development of airborne geophysical exploration in China[J].Acta Geophysica Sinica(in Chinese),37(Supp.1):367-377.
Yu B C.1990.The development of airborne radiometric survey in China[J].Uranium Geology(in Chinese),6(2):99-103,119.
Zhou X H,Qiao G Z.2002.The introduction and application of the new generation airborne multi-channel gamma spectrometer[J].Geophysical&Geochemical Exploration(in Chinese),26(4):318-320,324.
房江奇,田宇,杨金政.2014.黑龙江完达山-太平岭地区1∶5万航空物探调查项目野外工作总结报告[R].39.
葛良全,曾国强,赖万昌,等.2011.航空数字γ能谱测量系统的研制[J].核技术,34(2):156-160.
国防科技工业委员会.2005.EJ/T 1032-2005中华人民共和国核行业标准:航空伽玛能谱测量规范[S].国防科技工业委员会,4-6.
李运祓,赵元洪,童纯涵,等.1978.放射性勘探方法[M].北京:原子能出版社,105.
刘裕华,顾仁康,候振荣.2002.航空放射性测量[J].物探与化探,26(4):250-252.
骆遥,米耀辉.2014.航空伽玛能谱测量系统标定技术与标定程序[J].核电子学与探测技术,34(5):590-597.
万建华,熊盛青,范正国.2011.航空伽马能谱测量方法技术现状与展望[J].物探与化探,36(3):386-391.
吴慧山,谈成龙.1994.放射性(核)地球物理勘查的进展[J].地球物理学报,37(增刊1):429-436.
杨光庆,石青云,于百川.1994.中国航空物探的现状和发展[J].地球物理学报,37(增刊1):367-377.
于百川.1990.我国航空放射性测量的进展[J].铀矿地质,6(2):99-103,119.
周锡华,乔广志.2002.新一代航空多道伽马能谱仪的引进和初步应用[J].物探与化探,26(4):318-320,324.