Portable energy dispersive X-ray fluorescence and X-ray diffraction and radiography system for archaeometry

详细信息    查看全文

• 作者：Ariadna Mendoza Cuevas ; ^a ; ^{ariadna@mail.org} ; Homero Perez Gravie^a ; ^{homero.perezgravie@mail.com}
• 关键词：Portable X-ray fluorescence spectrometer ; Radiography ; Radiogrammetry ; Energy dispersive X-ray diffraction ; Analytical performance ; Archaeometry ; Painting ; Porcelain ; Manuscript and bronze
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2011
• 出版时间：21 March 2011
• 年：2011
• 卷：633
• 期：1
• 页码：72-78
• 全文大小：649 K

文摘

Starting on a laboratory developed portable X-ray fluorescence (PXRF) spectrometer; three different analytical results can be performed: analysis of chemical elements, analysis of major chemical crystalline phase and structural analysis, which represents a contribution to a new, low cost development of portable X-ray analyzer; since these results are respectively obtained with independent equipments for X-ray fluorescence, X-ray diffraction and radiography. Detection limits of PXRF were characterized using standard reference materials for ceramics, glass, bronze and bones, which are the main materials requiring quantitative analysis in art and archeological objects. A setup for simultaneous energy dispersive X-ray fluorescence and diffraction (ED (XRF–XRD)) in the reflection mode has been tested for in situ and non-destructive analysis according to the requirements of art objects inspection. The system uses a single low power X-ray tube and an X-ray energy dispersive detector to measure X-ray diffraction spectrum at a fixed angle. Application to the identification of jadeite-jade mineral in archeological objects by XRD is presented. A local high resolution radiography image obtained with the same low power X-ray tube allows for studies in painting and archeological bones.