OSL SENSITIVITY OF QUARTZ EXTRACTED FROM FIRED BRICKS FOR RETROSPECTIVE DOSIMETRY

Autor:	Dan, Reimitz, Ivan, Hupka, Daniela, Ekendahl
Rok vydání:	2022
Předmět:	Radiation Radiological and Ultrasound Technology Construction Materials Public Health Environmental and Occupational Health Thermoluminescent Dosimetry Radiology Nuclear Medicine and imaging Quartz General Medicine Radiometry Retrospective Studies
Zdroj:	Radiation Protection Dosimetry. 198:641-645
ISSN:	1742-3406 0144-8420
Popis:	Optically stimulated luminescence of quartz extracted from fired materials has been used for retrospective dosimetry for about 40 years. Quartz sensitivity to thermoluminescence and optically stimulated luminescence can vary over few orders of magnitude. These discrepancies in sensitivity for the quartz originating from different parts of the world are still not yet fully understood. We have extracted quartz from bricks produced by three different companies in the Czech Republic. Quartz was extracted from fired bricks, as well as from the bricks before firing. Significant changes in quartz sensitivity were observed after firing process. Sensitivity can either increase or decrease, depending mainly on the maximum temperature achieved during firing process. For some samples, the sensitivity increased significantly after firing (7 times). Sensitivity also increased after repeated irradiation exposures. On the other hand, there were also samples for which the sensitivity did not increase after repeated cycles of irradiation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::681acf72125955b70e431f46f5ea12aa https://doi.org/10.1093/rpd/ncac111 Zobrazit plný text záznamu