布鲁克超轻元素微区X射线荧光成像光谱仪 M4 TORNADO PLUS参考多项行业标准ASTMB568。完成罗马宝剑的检测。可以用在多个行业领域中的元素成份检测项目。

Analysis of a Roman sword with the M4 TORNADO
Archeometric objects are unique and very sensitive to changes in their consistency. This must be taken into account when examining them. Their examination is necessary for the preparation of their restoration and for understanding the technologies of their manufacture. For this purporse,only small parts of the object are usually analyzed. Especially for elemental analysis, micro X-ray fluorescence is a fast and frequently used analytical method that permits sensitive and non-destructive examination.
This report describes the analysis of parts of a Roman sword. After removing the corrosion layers, the sword was analyzed with Bruker‘s μ-XRF spectrometer M4 TORNADO

The sample
The examined object is a Roman sword of a type called Gladius (see Fig. 1). It was found in the north-east of Germany,close to the town of Pasewalk. Several manufacturing features indicate that the sword was not manufactured in this region. It was most likely carried by Germanic warriors,who broke it and sacrificed it to the gods. The sword was highly corroded.

Examination of the material structure
The first examination step took place at the University of Applied Sciences HTW Berlin (Hochschule für Technik und Wirtschaft Berlin), where X-ray imaging analysis was performed on the sample. Figure 2 (left) shows a sandwich structure of carbon rich and cabon poor regions in the upper part of the sword. This is known as damascene steel, a steel type that combines hardness with elasticity.
The X-ray image of the area close to the handle shows two pieces of inlaid work, one on each side of the blade as it can be seen in figure 2 (right).
The inlaid work shows on one side Victoria, the flying goddess of victory and the tutelary goddess of the Roman emperor. On the other side of the blade is an eagle, the symbol of the Roman legion (see Fig. 3).
From this point on, the examination focused on the elemental composition of the inlaid work and the blade, as well as on the reconstruction of the shape of the inlaid work by using an elemental imaging system.

Instrumentation
The examination was performed using the μ-XRF analysis method in Bruker‘s M4 TORNADO. The following measurement conditions were used:
Measurement in air
Excitation with 50 kV, 600 μA
Distribution analysis with HyperMap in an area of approx.22 x 16 mm (450 x 330 pixel)
Acquisition time per pixel: 10 ms

元素检测

M4 TORNADOPLUS能够检测分析轻质元素碳的微区X射线荧光成像光谱仪，具备两个具有元素窗口的大面积硅漂移探测器和一个优化的Rh靶X射线光管。

与普通微区X射线荧光成像光谱仪不同，M4 TORNADOPLUS在不影响较高能量范围内元素灵敏度的前提下，还可以检测原子数小于11的元素（Z＜11），例如氟（F）、氧（O）、氮（N）和碳（C）。

随着功能性的增强，M4 TORNADOPLUS应用也正在开发和拓展中，例如地质学、矿物学、生物学、聚合物研究或半导体行业等方向。

应用实例-萤石和方解石的区分

萤石（CaF2）和方解石（CaCO3）都是以钙为主要成分的矿物。它们的区别在于分别存在轻质元素氟（F），氧（O），碳（C）；由于普通微区X射线荧光成像光谱仪检测不到Z＜11(Na）的元素，无法区分这两种矿物，所以萤石和方解石的光谱图上都只会显示Ca元素谱线。

利用元素探测器，M4 TORNADOPLUS可以检测氟（F）、氧(O)和碳(C)，从而鉴别这两种矿物。

图：鉴别萤石与方解石 

左：方解石（红）和萤石（蓝）的元素分布图；图像尺寸：20×12mm2；扫描分辨率：800×460pixels             

右：萤石（蓝）和方解石（红）的轻质元素光谱图。

应用实例-电路板

由于AMS的场深度深，如图所示电路板的X射线图像获得更多的细节。此外，由于激发X射线光子的入口和出口角度减小，光束能量依赖性变得不那么明显。

图：具备AMS与不具备AMS的电路板元素分布图

左图: 标准多导毛细管聚焦在电路板上，元件的高点失焦，显得模糊。

右图: AMS系统加载下图像显示高景深，组件聚焦在更大的景深范围内。

M4 TORNADOPLUS - 微区X射线荧光成像的新纪元

M4 TORNADOPLUS能够检测出C（6）-Am（95）间元素的微区X射线荧光成像光谱仪。

作为微区X射线荧光成像光谱仪M4TORNADO系列的新产品，M4 TORNADOPLUS又增添了功能，例如创新性的孔径管理系统，高通量脉冲处理器以及快速灵活更换的样品台。

更轻、更快、更深

M4 TORNADOPLUS采用元素窗口的大面积硅漂移探测器（SDD）实现对轻元素碳的检测，高通量脉冲可以大程度采样速度，BRUKER孔径管理系统（AMS）可以获取大景深，对表面不平整样品分析具有优势。

能散型XRF超轻元素微区X射线荧光成像光谱仪 布鲁克 利用微区X射线荧光光谱仪检测罗马宝剑信息由铂悦仪器（上海）有限公司为您提供，如您想了解更多关于能散型XRF超轻元素微区X射线荧光成像光谱仪 布鲁克 利用微区X射线荧光光谱仪检测罗马宝剑报价、型号、参数等信息，欢迎来电或留言咨询。

注：该产品未在中华人民共和国食品药品监督管理部门申请医疗器械注册和备案，不可用于临床诊断或治疗等相关用途