用于中子测井的自成靶密封中子管性能评价
The Parameters Test of a Sealed D-T Logging Neutron Tube
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摘要: 采用自成靶工艺，研制了SNT-DT/25型密封氘氚中子管，对其工作温度、使用寿命、功耗、中子产额及其稳定性等性能参数进行了测试。结果表明：中子管使用温度可达175 ℃，最高中子产额≥1×109 n/s，中子产额浮动≤10%；在靶极电压-80 kV、阳极电流300 μA、靶流80 μA的工作条件下，中子产额可达1×108 n/s，中子管的性能指标完全满足中子测井使用要求。此外，本文还对中子产额随靶极电压、阳极电流的影响进行了分析。Abstract: The SNT-DT/25 type neutron tube was developed by drive-in target technology. Focused on the strict advices for well-logging neutron tube, the important parameters, such as neutron yield, stability, life span, were investigated on the special platform for neutron tube annealing. The results suggested that the operating temperature was as high as 175 ℃, the limit yield reached up to 109 n/s, the neutron yield changed less than 10%, and the neutron yield could reach to 1×108 n/s with acceleration voltage -80 kV and the anode current of 300 μA. Besides, the effect of target voltage and anodic current with neutron yield was analyzed.
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Keywords:
- Neutron logging /
- neutron tube /
- neutron yield
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[1] 魏宝杰，钟海明. 中子管及其应用技术[M]. 长春:东北师范大学出版社,1997. [2] 乔亚华. 中子管的研究进展及应用[J]. 核电子学与探测技术,2008,28(6):1134-1139.Qiao Yahua. Progress in studies and Application of neutron tube[J]. Nuclear Electronics & Detection Technology, 2008, 28(6): 1134-1139(in Chinese). [3] 郭清生. 碳氧比测井仪器原理及应用[M]. 北京：石油工业出版社,2012. [4] 李三庆. 测井用中子管寿命分析[J]. 西安工业学院学报,2001,21(4):355-357.Li Sanqing. Analysis for lifetime of neutron tube in logging[J]. Journal Of XI’AN Institute Of Technology, 2001, 21(4): 355-357(in Chinese). [5] 梁峰,吴军随,麻惠生. 耐高温长寿命测井中子管[J]. 测井技术,1999,23(1):62-64.Liang Feng, Wu Jun sui, Ma Hui sheng. High Temperature and Long-life Neutron Tube for Logging[J]. Well Logging Technology, 1999, 23(1): 62-64(in Chinese). [6] 肖坤祥. 小型石油测井中子管的参数测试[J]. 中国测井技术,2004,30(4):66-68.Xiao Kunxiang. The parameter test of small well logging neutron tube[J]. China Measurement Technology, 2004, 30(4): 66-68(in Chinese). [7] 卢洪波. 自成靶陶瓷中子管的井下中子发生器[J]. 核技术,1996,19(9):523-526.Lu Hongbo. A neutron generator using ceramic neutron tube with drive-in target for logging[J]. Nuclear Techniques, 1996, 19(9): 523-526(in Chinese). [8] 魏宝杰. 自成靶陶瓷中子管及其应用[J]. 核技术,1993,16(12):726-729.Wei Baojie. A ceramic neutron tube with drive-in target and its applications[J]. Nuclear Techniques, 1993, 16(12): 726-729(in Chinese).
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