CAJ | 학술논문

介绍了一种自适应的γ能谱散射本底扣除方法。该方法首先采用对称零面积寻峰方法对能谱寻峰并计算峰宽，然后采用SNIP方法进行散射本底的扣除，解决了峰宽对散射本底扣除的影响问题。为了验证方法的正确性，采用该方法对NaI（ Tl）和HPGe 探测器测得的典型γ能谱分别进行了本底扣除，并计算了γ特征峰的净峰面积，实验结果表明，该方法与Genie2000解谱结果的相对差异分别小于7％和2％。
개소료일충자괄응적γ능보산사본저구제방법。해방법수선채용대칭령면적심봉방법대능보심봉병계산봉관，연후채용SNIP방법진행산사본저적구제，해결료봉관대산사본저구제적영향문제。위료험증방법적정학성，채용해방법대NaI（ Tl）화HPGe 탐측기측득적전형γ능보분별진행료본저구제，병계산료γ특정봉적정봉면적，실험결과표명，해방법여Genie2000해보결과적상대차이분별소우7％화2％。
A self-adaptive method for the clipping of scatter background of γspectrum was presented .The principle of this method was that the peak search and peak region estimation were implemented with symmetric zero-area conversion method , then the scatter background was clipped with sensitive nonlinear iterative peak ( SNIP) clipping algorithm .This method resolved the problem of the influence of peak region on the separation of scatter background .To test the accuracy of this method , the clipping of background were done respectively for the gamma spectrums measured by NaI ( Tl) and HPGe detector , and the net areas for gamma characteristic peak were calculated .The results indicated that the relative deviations between this method and the results from Genie-2000 software were less than 7%and 2%, respectively .