Infrared Stimulated Luminescence and Thermoluminescence Dating of Loess from Lanzhou, China.
نویسندگان
چکیده
منابع مشابه
Optically Stimulated Luminescence Dating (Instrument Design for Mars Applications)
Introduction: To examine the geological and climatic history on Mars, we investigate an instrument design for robotic, in-situ, Optically Stimulated Luminescence dating (OSL). In this paper, we discuss the basic concepts of OSL, its benefits, and how this technique can be utilized on Mars. Also presented are the vital electronics needed for an instrument design and some of their basic operation...
متن کاملPhotostimulated Luminescence and Thermoluminescence of LSO Scintillators
Photostimulated luminescence (PSL) and thermoluminescence (TL) from five L~2(1-~)Ce2~(Si04)0 &SO) crystals with different light outputs is reported. Optical irradiation into the Ce3+ absorption bands causes the appearance of a broad absorption band near 280 nm which is ascribed to Ce4+. In addition, a tail is observed extending beyond 700 nm. Optical irradiation into this tail (PSL) or heating ...
متن کاملIntrinsic superlinear dose dependence of thermoluminescence and optically stimulated luminescence at high excitation dose rates
Superlinear dose dependence of thermoluminescence (TL) and optically stimulated luminescence (OSL) has been reported for many materials. The theoretical explanation has been ascribed to competition of either traps or recombination centers, during the excitation stage or during the read-out phase. There has been an account in the literature on superlinearity of OSL associated with merely one tra...
متن کاملPrecision and Accuracy in the Optically Stimulated Luminescence Dating of Sedimentary Quartz: a Status Review
Optically stimulated luminescence (OSL) dating of light-exposed sediments is used increasingly as a mean of establishing a sediment deposition chronology in a wide variety of late Quaternary studies. There has been considerable technological development in the last few years – in instrumentation, in the preferred mineral, and in various measurement protocols. New approaches to the latter, espec...
متن کاملOptically-stimulated luminescence profiling and dating of historic agricultural terraces in Catalonia (Spain)
Dating agricultural terraces is a notoriously difficult problem for archaeologists. The frequent occurrence of residual material in terrace soils and the potential for post-depositional disturbance mean that conventional artefactual and lab-based dating methods often provide unreliable dates. In this paper we present a new technique using luminescence field profiling coupled with OSL dating to ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Quaternary Research (Daiyonki-Kenkyu)
سال: 2001
ISSN: 1881-8129,0418-2642
DOI: 10.4116/jaqua.40.385