This paper described new development of the neutron induced prompt gamma-ray analysis(NIPGA) technology in 1988-2003.The pulse fast-thermal neutron activation analysis method,which utilized the inelastic reaction and ...This paper described new development of the neutron induced prompt gamma-ray analysis(NIPGA) technology in 1988-2003.The pulse fast-thermal neutron activation analysis method,which utilized the inelastic reaction and capture reaction jointly,was employed to measure the elemental contents more efficiently.Lifetime of the neutron generator was more than 10000h and the performance of detector and MCA reached a high level.At the same time,Monte Carlo library least-square method was used to solve the nonlinearity problem in the NIPGA.展开更多
为实现中子感生瞬发伽马射线方法在线测量煤炭元素含量,采用C#编写了自动测量程序。采用File System Watcher监测谱文件的生成,利用StreamReader读取伽马能谱的数据,用五点二次平滑法平滑计数,利用11道计数和寻找峰位,通过线性回归方程...为实现中子感生瞬发伽马射线方法在线测量煤炭元素含量,采用C#编写了自动测量程序。采用File System Watcher监测谱文件的生成,利用StreamReader读取伽马能谱的数据,用五点二次平滑法平滑计数,利用11道计数和寻找峰位,通过线性回归方程计算碳、氢、氧的含量。自动测量程序不仅可以自动计算元素含量,还能自动控制中子探测器、多道脉冲分析器、伽马射线探测器和D-T中子发生器等硬件。现场测试结果表明,该程序自身问题引起的设备故障率几乎为零,每个伽马能谱的解析时间小于1 s,能满足煤炭元素含量在线测量的要求。展开更多
基金Supported by Science Foundation for Young Teachers Normal University
文摘This paper described new development of the neutron induced prompt gamma-ray analysis(NIPGA) technology in 1988-2003.The pulse fast-thermal neutron activation analysis method,which utilized the inelastic reaction and capture reaction jointly,was employed to measure the elemental contents more efficiently.Lifetime of the neutron generator was more than 10000h and the performance of detector and MCA reached a high level.At the same time,Monte Carlo library least-square method was used to solve the nonlinearity problem in the NIPGA.
文摘为实现中子感生瞬发伽马射线方法在线测量煤炭元素含量,采用C#编写了自动测量程序。采用File System Watcher监测谱文件的生成,利用StreamReader读取伽马能谱的数据,用五点二次平滑法平滑计数,利用11道计数和寻找峰位,通过线性回归方程计算碳、氢、氧的含量。自动测量程序不仅可以自动计算元素含量,还能自动控制中子探测器、多道脉冲分析器、伽马射线探测器和D-T中子发生器等硬件。现场测试结果表明,该程序自身问题引起的设备故障率几乎为零,每个伽马能谱的解析时间小于1 s,能满足煤炭元素含量在线测量的要求。
