Synchrotron X-ray diffraction and fluorescence study of the astrolabe

Autor:	Michael R. Notis, G. Brian Stephenson, Brian D. Newbury, Bruce Stephenson
Rok vydání:	2012
Předmět:	Diffraction Materials science business.industry Synchrotron X-Ray Diffraction General Chemistry Astrolabe Engraving Fluorescence Synchrotron law.invention Optics law visual_art visual_art.visual_art_medium General Materials Science business
Zdroj:	Applied Physics A. 111:129-134
ISSN:	1432-0630 0947-8396
DOI:	10.1007/s00339-012-7480-7
Popis:	The astrolabe is an ancient analogue astronomical computing device used for calculations relating to position and time of the observer’s location. In its most common form (the planispheric astrolabe), it consists of an engraved plate or series of plates held together and pinned in a housing, the assembly usually being made of brass. The present study describes the use of X-ray diffraction (XRD) and X-ray fluorescence (XRF) in a synchrotron to elucidate the composition of, and fabrication techniques used for, the major component parts of the astrolabe. The synchrotron XRF studies are compared to similar studies made with a handheld XRF instrument and the advantages and disadvantages of both approaches are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7c17d2c7a2c3b0a521483371453b2305 https://doi.org/10.1007/s00339-012-7480-7 Zobrazit plný text záznamu Full text from SpringerLink