Quartz red TL SAR equivalent dose overestimation for Chinese loess

被引：15

作者：

Lai, ZP

Murray, AS

Bailey, RM

Huot, S

Botter-Jensen, L

机构：

[1] Univ Oxford, Ctr Environm, Oxford OX1 3TB, England

[2] Univ Aarhus, Riso Natl Lab, Dept Earth Sci, Nordic Lab Luminescence Dating, DK-4000 Roskilde, Denmark

[3] Univ London Royal Holloway & Bedford New Coll, Dept Geog, Egham TW20 0EX, Surrey, England

[4] Riso Natl Lab, DK-4000 Roskilde, Denmark

来源：

RADIATION MEASUREMENTS | 2006年 / 41卷 / 01期

关键词：

quartz red TL SAR D-e; sensitivity change; residual level; Chinese loess;

D O I：

10.1016/j.radmeas.2005.06.006

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

For the red TL of quartz extracted from Chinese loess, the single-aliquot regenerative-dose (SAR) procedure overestimates the known laboratory doses in dose recovery test. The overestimation is the result of the first heating during the measurement of natural TL signal causing a sensitivity reduction, which is not corrected for using a SAR protocol. The SARA procedure was used to measure the sensitivity change. Using this as a correction factor is tested by comparison with the quartz optically stimulated luminiscence (OSL) equivalent dose. SARA is also employed to determine the residual level of red TL, which is found to be more than 100 Gy. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：114 / 119

页数：6

共 16 条

[1]

DULLER GAT, 1991, NUCL TRACKS RAD MEAS, V18, P371

[2] Extending the time range of luminescence dating using red TL (RTL) from volcanic quartz [J].