+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Isothermal decay of optically stimulated luminescence in quartz



Isothermal decay of optically stimulated luminescence in quartz



Radiation Measurements: , Pages 119-125. 1999.



Isothermal decay curves are presented for the optically stimulated luminescence from an Australian sedimentary quartz, measured for 0.1 s at 125°C, using a broad band 420–550 nm light source (∼26 mW cm−2). Natural and laboratory irradiated samples were held at 160, 180, 200, 220, 240, 260 and 280°C for up to 22 h. Laboratory irradiated samples showed a marked increase in OSL prior to the decrease expected as a result of thermal detrapping of charge. This increase was caused by thermally induced sensitivity changes, which were monitored using the response to a test dose of the 110°C TL peak after each OSL measurement. After dividing the OSL data by this TL response to remove the effects of these sensitivity changes, the corrected OSL decay curves showed that, in this sample, the natural signal was dominated by a single decay component, whereas those from laboratory irradiated sub-samples were dominated by two clearly separate components. Kinetic analysis suggests that the less thermally stable signal has a half-life of <1000 yr at 20°C, and would be removed by the preheats commonly used in dating applications. The more stable signal, present in both the natural and laboratory irradiated samples, has a lifetime of about 1×108 yr at 20°C, confirming its suitability as for dating.

(PDF emailed within 0-6 h: $19.90)

Accession: 018430372

Download citation: RISBibTeXText

DOI: 10.1016/s1350-4487(98)00097-3


Related references

Extending the upper age limit for luminescence dating using the thermally transferred optically stimulated luminescence signal from quartz. Geophysical Research Abstracts 12, 2010

The slow component of quartz optically stimulated luminescence. Radiation Measurements 32(3): 233-246, 2000

Kinetics of red, blue and UV thermoluminescence and optically-stimulated luminescence from quartz. Radiation Measurements 32(5-6): 659-666, 2000

Optically stimulated luminescence from quartz measured using the linear modulation technique. Radiation Measurements 32(5-6): 407-411, 2000

Simulations of the effect of pulse annealing on optically-stimulated luminescence of quartz. Radiation Measurements 42(10): 1587-1599, 2007

Further investigations of the quartz optically stimulated luminescence components using linear modulation. Radiation Measurements: -5, Pages 451-458. 2003., 2003

Towards a general kinetic model for optically and thermally stimulated luminescence of quartz. Radiation Measurements 33(1): 17-45, 2001

Determining the burial time of single grains of quartz using optically stimulated luminescence. Earth and Planetary Science Letters 152(1-4): 163-180, 1997

Reproducibility of optically stimulated luminescence measurements from single grains of Al (sub 2) O (sub 3) :C and annealed quartz. Radiation Measurements 32(5-6): 447-451, 2000

Emission spectra of optically and thermally stimulated recombination luminescence in feldspar and quartz. Program with Abstracts - Geological Association of Canada(Mineralogical Association of Canada(Canadian Geophysical Union, Joint Annual Meeting 1993: 36, 1993

A review of the thermally transferred optically stimulated luminescence signal from quartz for dating sediments. Quaternary Geochronology 7(none): 6-20, 2012

Measurement of equivalent doses in quartz from contemporary water-lain sediments using optically stimulated luminescence. Quaternary Science Reviews: , Pages 365-371. 1995., 1995

Shedding new light on the age of the Palouse Loess, southeastern Washington, using optically stimulated luminescence dating of quartz. Eos, Transactions, American Geophysical Union 90.52, Suppl, 2009

Testing optically stimulated luminescence dating of sand-sized quartz and feldspar from fluvial deposits. Earth and Planetary Science Letters 193(3-4): 617-630, 2001

Component-resolved bleaching spectra of quartz optically stimulated luminescence; preliminary results and implications for dating. Radiation Measurements 38(1): 111-118, 2004