Improving the TT-OSL SAR protocol through source trap characterisation

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

82 Dyfyniadau (Scopus)

Crynodeb

Thermally-transferred optically stimulated luminescence (TT-OSL) extends the age range of OSL dating using quartz. A set of experiments have been undertaken to determine the kinetic parameters of the TT-OSL source traps, and this information has been used to propose an improved TT-OSL single aliquot regenerative (SAR) dose protocol. By combining together OSL and thermoluminescence (TL) measurements on fine-grained quartz, a correspondence between TL peaks and the TT-OSL signal is found. The thermal stability of the main TT-OSL trap was estimated by applying Hoogenstraaten’s method and allowing for thermal quenching; this predicts a lifetime of 4.5 Ma at 10 °C. A set of experiments were undertaken to refine the treatment needed at the end of each SAR cycle to erase the previously acquired TT-OSL signal. An improved TT-OSL SAR protocol using this treatment is proposed, and it is tested on quartz from a young Holocene sample. These tests yielded excellent recycling ratios and excellent dose recovery.
Iaith wreiddiolSaesneg
Tudalennau (o-i)768-777
Nifer y tudalennau10
CyfnodolynRadiation Measurements
Cyfrol45
Rhif cyhoeddi7
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - Awst 2010

Ôl bys

Gweld gwybodaeth am bynciau ymchwil 'Improving the TT-OSL SAR protocol through source trap characterisation'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.

Dyfynnu hyn