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Luminescence Dating Procedures at the Gliwice Luminescence Dating Laboratory Cover

Luminescence Dating Procedures at the Gliwice Luminescence Dating Laboratory

Geochronometria
Volume 48 (2021): Issue 1 (January 2021)
By: Piotr Moska,  Andrzej Bluszcz,  Grzegorz Poręba,  Konrad Tudyka,  Grzegorz Adamiec,  Agnieszka Szymak and  Aleksandra Przybyła  
Open Access
|Apr 2021

Figures & Tables

Fig 1

The Eijkelkamp system for sampling.

Fig 2

Cordless drill with coring saw set.

Fig 3

High-purity Germanium (HPGe) gamma-ray spectrometers in the GLL. GLL, Gliwice Luminescence Laboratory.

Fig 4

The new type of containers (gBEAKERs) for samples used in High-Resolution Gamma Spectrometry (HRGS) was developed in GLL (Poręba et al., 2020). GLL, Gliwice Luminescence Laboratory.

Fig 5

An example of the gamma-ray spectrum obtained for soil sample in GLL. GLL, Gliwice Luminescence Laboratory.

Fig 6

The μDose system.

Fig 7

Sample holder for standard size 3 g samples prepared for measurement on the μDose system.

Fig 8

Sample changing steps.

Fig 9

Portable scintillation spectrometer used during field measurements.

Fig 10

Chemical preparation laboratory.

Fig 11

Collecting material for luminescence measurements from ceramics.

Fig 12

Risø TL/OSL DA-20 with a calibrated beta 90Sr/90Y source.

Fig 13

Daybreak 2002.

Fig 14

The growth curve as a result of applying the SAR procedure for one quartz portion (the luminescence decay curve is shown below the growth curve). SAR, single-aliquot regenerative-dose.

Fig 15

Graph of the probability density distribution (Berger, 2010) for two different samples, as typical examples of the presentation of luminescence results. Fig 15a present typical unimodal distribution, Fig 15b is an example of distribution characterised by higher value of overdispersion parameter.

Fig 16

Example of some information contained in the final dating report.

Gamma spectrum lines used to determine the activities of the respective isotopes_

OriginIsotopesLines
238U decay chain234Th63.3 keV
234mPa1001.0 keV
226Ra186.2 keV
214Pb295.2 keV
351.9 keV
214Bi609.3 keV
768.4 keV
1120.3 keV
1764.5 keV
210Pb46.5 keV
232Th decay chain228Ac911.2 keV
969.0 keV
212Bi238.6 keV
208Tl583.6 keV
2614.5 keV
40K40K1460.8 keV

Steps used in the protocol used for determining equivalent doses_ For the quartz fraction, the SAR protocol (Murray and Wintle, 2000) is used_

OSL SAR protocol – main steps
1Irradiation with the regenerative beta dose Di
2Preheat at a temperature of 260°C for 10 s (final temperature is determined after preheat plateau test)
3Blue light stimulation at a temperature of 125°C for 100 s
4Irradiation with the test dose Dt (10% of the natural dose, but not <1 Gy)
5Cut-heat at a temperature of 220°C
6Blue light stimulation at a temperature of 125°C for 100 s
DOI: https://doi.org/10.2478/geochr-2021-0001 | Journal eISSN: 1897-1695
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Language: English
Page range: 1 - 15
Submitted on: Apr 17, 2020
|
Accepted on: Jan 13, 2021
|
Published on: Apr 17, 2021
Published by: Sciendo
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
Luminescence dating,
OSL,
Samples preparation,
Dose rate,
Equivalent dose
Related subjects:
Geosciences,
Geosciences, other

© 2021 Piotr Moska, Andrzej Bluszcz, Grzegorz Poręba, Konrad Tudyka, Grzegorz Adamiec, Agnieszka Szymak, Aleksandra Przybyła, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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