Monitoring environmental dose rate using Riso TL/OSL readers with built-in 
sources: recommendations for users

Kalchgruber, R.; Goksu, H. Y.; Hochhauser, E.; Wagner, G. A.

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Monitoring environmental dose rate using Riso TL/OSL readers with built-in sources: recommendations for users

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Kalchgruber, R.
Guest Group Archaeometry, MPI for Nuclear Physics, Max Planck Society;

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Wagner, G. A.
Guest Group Archaeometry, MPI for Nuclear Physics, Max Planck Society;

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Zitation

Kalchgruber, R., Goksu, H. Y., Hochhauser, E., & Wagner, G. A. (2002). Monitoring environmental dose rate using Riso TL/OSL readers with built-in sources: recommendations for users. Radiation Measurements, 35(6), 585-590.

Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0011-8264-0

Zusammenfassung

Measurements were carried out to quantify the dose rate delivered to samples due to leakage and cross-talk of the beta and alpha sources in various models of Riso TL/OSL readers; additionally the offset time was calculated. Highly sensitive alpha-Al2O3:C and CaF2:Mn dosemeters were used to investigate the impact on low environmental dose-rate assessment. The effect is shown to depend on the energy response of the detectors, the source strength and the reader design of the equipment. It was tested, if the scattered radiation of the closed source can be utilised to extend the dose range downwards to lower doses, as the dose rates of the built-in sources of Riso TL/OSL readers often exceed the practical values for ultra-low-dose measurements. The results and their consequences for environmental dose-rate assessment are discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.