A comparative study of the luminescence characteristics of polymineral fine grains and coarse-grained K-, and Na-rich feldspars

Publication: Research - peer-reviewConference article – Annual report year: 2012

Standard

A comparative study of the luminescence characteristics of polymineral fine grains and coarse-grained K-, and Na-rich feldspars. / Tsukamoto, Sumiko; Jain, Mayank; Murray, Andrew S.; Thiel, Christine; Schmidt, Esther; Wacha, Lara; Dohrmann, Reiner; Frechen, Manfred.

In: Radiation Measurements, Vol. 47, 2012, p. 903-908.

Publication: Research - peer-reviewConference article – Annual report year: 2012

Harvard

APA

CBE

MLA

Vancouver

Author

Tsukamoto, Sumiko; Jain, Mayank; Murray, Andrew S.; Thiel, Christine; Schmidt, Esther; Wacha, Lara; Dohrmann, Reiner; Frechen, Manfred / A comparative study of the luminescence characteristics of polymineral fine grains and coarse-grained K-, and Na-rich feldspars.

In: Radiation Measurements, Vol. 47, 2012, p. 903-908.

Publication: Research - peer-reviewConference article – Annual report year: 2012

Bibtex

@article{7f3635aa1c214157b54f1d8ee48e3844,
title = "A comparative study of the luminescence characteristics of polymineral fine grains and coarse-grained K-, and Na-rich feldspars",
keywords = "Feldspar, Polymineral, IRSL, Post-IR IRSL, Thermal stability, Time-resolved IRSL",
publisher = "Pergamon",
author = "Sumiko Tsukamoto and Mayank Jain and Murray, {Andrew S.} and Christine Thiel and Esther Schmidt and Lara Wacha and Reiner Dohrmann and Manfred Frechen",
year = "2012",
doi = "10.1016/j.radmeas.2012.02.017",
volume = "47",
pages = "903--908",
journal = "Radiation Measurements",
issn = "1350-4487",

}

RIS

TY - CONF

T1 - A comparative study of the luminescence characteristics of polymineral fine grains and coarse-grained K-, and Na-rich feldspars

A1 - Tsukamoto,Sumiko

A1 - Jain,Mayank

A1 - Murray,Andrew S.

A1 - Thiel,Christine

A1 - Schmidt,Esther

A1 - Wacha,Lara

A1 - Dohrmann,Reiner

A1 - Frechen,Manfred

AU - Tsukamoto,Sumiko

AU - Jain,Mayank

AU - Murray,Andrew S.

AU - Thiel,Christine

AU - Schmidt,Esther

AU - Wacha,Lara

AU - Dohrmann,Reiner

AU - Frechen,Manfred

PB - Pergamon

PY - 2012

Y1 - 2012

N2 - The IRSL and post-IR IRSL (pIRIR) signal characteristics of polymineral fine grains are investigated and compared with those of K- and Na-rich feldspar extracts. TL signal loss after IR and pIRIR stimulations occurs mainly at around 320 °C for polymineral and Na-feldspar samples and around 410 °C for K-feldspar samples, when a preheat temperature of 250 °C for 60 s is used. After preheating to a higher temperature (320 °C for 60 s) all samples show a TL reduction around 410 °C in the blue detection window. Pulse annealing experiments for IRSL and pIRIR signals for preheats between 320 °C and 500 °C indicate that the signal stabilities are similar among the different feldspar types, when a higher preheat temperature (&gt;320 °C) is used. Thermal activation energies for IRSL and pIRIR signals are largest in K-feldspar and smallest in polymineral fine grains, in both blue and UV detection windows for both fast time-resolved (TR) and continuous wave (CW) signals. These results suggest that IRSL and pIRIR signals in polymineral fine grains originate mainly from Na-feldspar grains; these signals are less thermally stable than those from K-feldspar, but a more stable signal (presumably from K-feldspar grains) can be obtained using a higher preheat temperature. <br/> <br/>

AB - The IRSL and post-IR IRSL (pIRIR) signal characteristics of polymineral fine grains are investigated and compared with those of K- and Na-rich feldspar extracts. TL signal loss after IR and pIRIR stimulations occurs mainly at around 320 °C for polymineral and Na-feldspar samples and around 410 °C for K-feldspar samples, when a preheat temperature of 250 °C for 60 s is used. After preheating to a higher temperature (320 °C for 60 s) all samples show a TL reduction around 410 °C in the blue detection window. Pulse annealing experiments for IRSL and pIRIR signals for preheats between 320 °C and 500 °C indicate that the signal stabilities are similar among the different feldspar types, when a higher preheat temperature (&gt;320 °C) is used. Thermal activation energies for IRSL and pIRIR signals are largest in K-feldspar and smallest in polymineral fine grains, in both blue and UV detection windows for both fast time-resolved (TR) and continuous wave (CW) signals. These results suggest that IRSL and pIRIR signals in polymineral fine grains originate mainly from Na-feldspar grains; these signals are less thermally stable than those from K-feldspar, but a more stable signal (presumably from K-feldspar grains) can be obtained using a higher preheat temperature. <br/> <br/>

KW - Feldspar

KW - Polymineral

KW - IRSL

KW - Post-IR IRSL

KW - Thermal stability

KW - Time-resolved IRSL

U2 - 10.1016/j.radmeas.2012.02.017

DO - 10.1016/j.radmeas.2012.02.017

JO - Radiation Measurements

JF - Radiation Measurements

SN - 1350-4487

VL - 47

SP - 903

EP - 908

ER -