Equivalent dose in quartz from young samples using the SAR protocol and the effect of preheat temperature

Yükleniyor...
Küçük Resim

Tarih

2006-09

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Pergamon-Elsevier Science Ltd

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Araştırma projeleri

Organizasyon Birimleri

Dergi sayısı

Özet

Major concerns in the dating of samples younger than a few hundred years by the optically stimulated luminescence (OSL) technique are thermal transfer and partial bleaching. Thermal transfer during preheating enhances the OSL signal due to the charge transfer from thermally sensitive, but light-insensitive, traps to optical centres of quartz and results in an overestimate in equivalent dose, especially for very young samples. In this study, the single-aliquot regenerative-dose protocol is used to obtain values of equivalent dose (D-e) from young samples taken from various environments around Istanbul. Within this framework, we aim to investigate the effect of preheat temperature on equivalent dose from 150 to 300 degrees C, the reproducibility of De measurements for young deposits and the contribution from thermal transfer of charge to the equivalent dose estimation. It was observed that the measured dose is influenced significantly by preheat temperature and the increase in the De is clearly due to thermal transfer of charge from deep thermally sensitive traps to OSL trap during preheating of the samples prior to the main OSL measurements.

Açıklama

Anahtar Kelimeler

Optically stimulated luminescence, Sediments, Optically stimulated luminescence (OSL) technique, Partial bleaching, Single-aliquot regenerative-dose protocol, Bleaching, Luminescence, Preheating, Thermal effects, Quartz, Heating, Luminescence dating, Infrared stimulated

Kaynak

Radiation Measurements

WoS Q Değeri

Q2
Q2

Scopus Q Değeri

Q2

Cilt

41

Sayı

7-8
SI

Künye

Güneç Kıyak, N. & Canel, T. (2006). Equivalent dose in quartz from young samples using the SAR protocol and the effect of preheat temperature. Radiation Measurements, 41(7-8), 917-922. doi:10.1016/j.radmeas.2006.04.00