Spectroscopic signatures of cased high-explosive charge denotations are examined using emission spectroscopy with sub nanometer resolution. Eleven distinct case materials are investigated for atomic features of their major alloying elements. Molecular features of case material combustion products are also investigated for five case materials. Emission is monitored within the 275–425 nm range for atomic features and in the 310–755 nm range for molecular features. Major alloying elements with concentrations greater than 5% are generally detected through atomic emission. Al, Cu, Fe, Mg, Cr, Mn, Pb, and Ni are all detected in concentrations less than 5%. Undetected elements include Zn, Nb, Ta, and V. Molecular emission from aluminum monoxide, titanium monoxide, and CN is measured for aluminum alloy, titanium alloy, and carbon fiber cases, respectively.

使用具有亚纳米分辨率的发射光谱检查外壳高爆炸电荷表示的光谱特征。研究了 11 种不同外壳材料的主要合金元素的原子特征。还研究了五种外壳材料的外壳材料燃烧产物的分子特征。在原子特征的 275-425 nm 范围内和分子特征的 310-755 nm 范围内监测发射。浓度大于 5% 的主要合金元素通常通过原子发射检测。Al、Cu、Fe、Mg、Cr、Mn、Pb 和 Ni 的检测浓度均低于 5%。未检测到的元素包括 Zn、Nb、Ta 和 V。分别测量铝合金、钛合金和碳纤维外壳的一氧化铝、一氧化钛和 CN 的分子发射。