CAJ | 학술논문

本文介绍在北京师范大学GIC4117串列加速器上建立的外束PIXE/PIGE分析系统，和基于此系统的薄样品外束PIXE/PIGE定量分析方法。给出了2010年Teflon滤膜采集的361个气溶胶样品外束PIXE分析得到的各元素平均探测限和最低探测限，并同真空 PIXE分析探测限进行了比较。利用标准样品给出了激发曲线不同坪区薄样品外束PIGE分析F和Na的探测限，通过测定19 F（p ，p′γ）19 F激发的197 keV γ射线得到的F的探测限可达73.9 ng · cm -2，Na的探测限可达198.9 ng · cm-2。
본문개소재북경사범대학GIC4117천렬가속기상건립적외속PIXE/PIGE분석계통，화기우차계통적박양품외속PIXE/PIGE정량분석방법。급출료2010년Teflon려막채집적361개기용효양품외속PIXE분석득도적각원소평균탐측한화최저탐측한，병동진공 PIXE분석탐측한진행료비교。이용표준양품급출료격발곡선불동평구박양품외속PIGE분석F화Na적탐측한，통과측정19 F（p ，p′γ）19 F격발적197 keV γ사선득도적F적탐측한가체73.9 ng · cm -2，Na적탐측한가체198.9 ng · cm-2。
At the GIC4117 1.7 MV tandem accelerator of Beijing Normal University ,an external beam PIXE/PIGE analysis facility was established ,and the analysis method of thin samples was developed on the facility .The average and the lowest limits of detec-tion (LOD) of multielement for the external beam PIXE analysis of 361 PM2.5 samples collected on Teflon membrane filters in 2010 were given ,and compared with those of vacuum PIXE analysis .The results of external beam PIGE analysis of standard samples show that the LOD can be as low as 73.9 ng · cm -2 and 198.9 ng · cm -2 for F (using 197 keV γ-ray from 19 F(p ,p′γ) 19 F reaction) and Na ,respectively .