Tomodensitométrie axiale: relation entre l'intensité tomographique et la densité de la matière

Autor:	J. F. Dumais, B. Long, X. Boespflug, N. Ross
Rok vydání:	1994
Předmět:	High atomic number Photoelectric absorption Calibration Compton scattering General Earth and Planetary Sciences Mineralogy Atomic number Tomography Linear correlation Atomic physics Geology Intensity (physics)
Zdroj:	Canadian Journal of Earth Sciences. 31:426-434
ISSN:	1480-3313 0008-4077
DOI:	10.1139/e94-039
Popis:	The calibration of an axial tomodensitometer, used in sedimentology, was carried out on minerals and liquid samples. This study, taking into consideration the interactions between X rays and matter, revealed (i) a good correlation between the density of samples containing elements with low atomic number, which undergo only Compton scattering, and the intensity readings obtained by computer tomography and (ii) readings higher than predicted by linear correlation for samples containing elements with high atomic number, which undergo both Compton scattering and photoelectric absorption. An empirical model is used to correct the readings and correlate them with the density.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e0e9f7306afd99e949d4c8a5524af99f https://doi.org/10.1139/e94-039 Zobrazit plný text záznamu