微机在r能谱中的应用

The Computer is Applied to Energy Spectrum

中文关键词:  微机 r能谱 土壤 核素 环境样品

英文关键词:r-energy spectrum, computer, analysis

中文摘要:

      本工作用计算机对ｒ能谱获取的数据进行了光滑处理，并通过已知核素在ｒ能谱中的实测数据，拟合出能量道述表达式，选取了适宜的数学模型，对非线性的能量效率曲线进行拟合，提高了定性定量分析的精度和解谱速度，在实际应用中获得了满意的效果。随着核物技术的发展，ｒ能谱在海洋湖沼、环境科学等领域的应用越来越广泛。高分辩率探测器的部世和应用，把该项技术推上更高的水平，一次测量可获得大量校数据，并可同时定性定量分析多种放射性核素，由于射线能量与探测效率的变化是非线性的，而又不遵循一种变化规律，加之背景值的干扰，给ｒ能谱的分析造成一定的困难。计算机的应用为ｒ能谱处理提供了很大方便。

英文摘要:

      By applying computer,the authors took smoothing treatment to data obtained by r-energy spectrum, put together already-known nuclein's data measured in the r-energy spectrum, drew up energy track address expression, then chose suitable math model to make non-linear energy efficiency curve fit well, AS a result both qualitative and quantitative analytical precisions were raised,spectrum interpretation was sped up. Satisfactory result was got in the use.Following development of nuclear physical technology r-energy spectrum is more and more widely used in the field such as oceanography, limnology and enviromental science etc. The invention of high-resolution detector brings this technique to higher leval,one measure can get a large quantities of nuclear data.at the same times it can be used fo oualitative and quantitative analysis to many radiation nucleins. For radiation energy relation against detection efficiency is non-linear, no certain rules, and interference of background signals also exists, r-energy spectrum analysis meets some difficulty. Now computer supplies great convenience to r-energy spectrum treatment.