用D-T中子发射器快速检测煤中铅含量的可行性研究

摘要

用MCNP程序模拟了D-T中子发射器产生的14MeV中子与铅作用释放出的瞬发伽马射线,用线性回归找出铅含量和其特征伽马射线计数间的关系。用此关系式检测煤样的结果表明,当煤炭中铅含量超过0.002%时,D-T中子发生器可以快速检测其含量。%Simulated 14 MeV neutrons generated by D-T generator are reacted with lead to release the gamma-ray,and the relationship between the lead content and the number of gamma-ray is studied with regression analysis.The results indicate that D-T generator can be used for quick detect of lead content when it is more than 0.002% in coal.