Applications of a new portable (micro) XRF instrument having low-Z elements determination capability in the field of works of art
نویسندگان
چکیده
1 Conservation Science Department, Kunsthistorisches Museum, Burgring 5, A-1010 Vienna, Austria 2 Atomic Institute (ATI), Vienna University of Technology, Stadionallee 2, A-1020 Vienna, Austria 3 Agency’s Laboratories Seibersdorf, International Atomic Energy Agency (IAEA), Reaktorstrasse 1, A-2444 Seibersdorf, Austria 4 Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland
منابع مشابه
کاربرد دستگاه XRF پرتابل در مطالعات باستانسنجی مواد فرهنگی تاریخی
Study of cultural and historical materials excavated from the archaeological excavation is one of the most important goals of Archaeometry, in order to answer a lot of questions in archaeology. In this regard, elemental analysis is important factors in the realization of this aim. Numerous analytical methods have been used for this purpose traditionally. Among them, X-ray fluorescence spectrosc...
متن کاملA Portable Non-invasive Xrd-xrf Instrument for the Study of Art Objects
A non-invasive XRD/XRF instrument for study of works of art has been developed jointly by the Getty Conservation Institute and inXitu Inc. (California). Many aspects of the instrument are based on technologies initially developed for NASA’s planetary XRD/XRF instrument CheMin and used in inXitu’s portable transmission XRD/XRF instrument (Terra). A new geometry was designed based on a reflection...
متن کاملField Deployment of a Portable Xrd/xrf Instrument on Mars Analog Terrain
CheMin is a miniature X-ray diffraction/X-ray fluorescence (XRD/XRF) instrument that is included in the payload of the Mars 2009 Mars Science Laboratory mission. A portable CheMin prototype was built to test the capability of the instrument for remote in-situ mineralogical characterization of geological materials. The instrument was successfully deployed at a variety of Mars analog sites in Dea...
متن کاملDevelopment and optimisation of a portable micro-XRF method for in situ multi-element analysis of ancient ceramics.
Non-destructive analysis of cultural objects by micro-XRF spectrometry is an advantageous multi-element technique that has rapidly developed during the past few years. Portable instruments contribute significantly to the in situ analysis of valuable cultural objects, which cannot be transported to the laboratory. Ancient ceramics are the most common archaeological findings and they carry a sign...
متن کاملA High Efficiency Low-Voltage Soft Switching DC–DC Converter for Portable Applications
This paper presents a novel control method to improve the efficiency of low-voltage DC-DC converters at light loads. Pulse Width Modulation (PWM) converters have poor efficiencies at light loads, while pulse frequency modulation (PFM) control is more efficient for the same cases. Switching losses constitute a major portion of the total power loss at light loads. To decrease the switching losses...
متن کامل