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A method of individual calibration of LiF optical absorption dosemeters.
Radiat. Prot. Dosim. 47, 581-583 (1993)
Optical grade crystals of lithium fluoride (LiF) have been developed for high level (50 MGy) and high temperature (250°C) dosimetry at GSF, based on optical density (OD) measurements. The measuring accuracy however was limited by a relatively high coefficient of variation (20%) for the interspecimen scattering of response. A method is described to improve precision by individual probe calibration at a relatively low dose level (1 kGy) by using F-centres only. It is shown that the calibration factors are applicable at high doses, where other centres are involved. By this procedure, the coefficient of variation for interspecimen scattering can be reduced to ≤ 5%. Thermoluminescence (TL) and trace element analysis was performed to find an explanation for the interspecimen scattering. While no correlation could be found between optical density and trace element content and between optical density and TL, a strong correlation was observed between optical density and fluorescence.
Impact Factor
Scopus SNIP
0.000
0.777
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Sprache
englisch
Veröffentlichungsjahr
1993
HGF-Berichtsjahr
0
ISSN (print) / ISBN
0144-8420
e-ISSN
1742-3406
Zeitschrift
Radiation Protection Dosimetry
Quellenangaben
Band: 47,
Heft: 1-4,
Seiten: 581-583
Verlag
Oxford University Press
Verlagsort
Oxford
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Forschungsfeld(er)
Radiation Sciences
PSP-Element(e)
A-660200-001
Scopus ID
0027202286
Erfassungsdatum
1993-12-30