Instrumentation for the non-destructive optical measurement of trapped electrons in feldspar

M. Kook; R. Kumar; A.S. Murray; K.J. Thomsen; M. Jain

doi:10.1016/j.radmeas.2018.06.001

Instrumentation for the non-destructive optical measurement of trapped electrons in feldspar

M. Kook^*, R. Kumar, A.S. Murray, K.J. Thomsen, M. Jain

^*Corresponding author for this work

Aarhus University

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Abstract

A facility for the measurement of infrared photoluminescence (IRPL) has been developed for the Risø TL/OSL reader. The new IRPL measurement system uses an external laser light source at 1.49 eV (830 nm) and two photomultiplier tubes (PMT) for detecting emissions at ∼1.41 eV (880 nm) and ∼1.3 eV (955 nm) and an EMCCD. Pulsed IRPL measurement ensures a low background count rate by allowing the rejection of breakthrough from excitation light. We present the results of integrated IRPL measurements on both multiple- and single-grain aliquots, and finally demonstrate the potential of imaging natural K-feldspar samples and a granite rock slice.

Original language	English
Journal	Radiation Measurements
Volume	120
Pages (from-to)	247-252
ISSN	1350-4487
DOIs	https://doi.org/10.1016/j.radmeas.2018.06.001
Publication status	Published - 2018

Keywords

Feldspar
Imaging
Infrared photoluminescence (IRPL)
Optical dating
Single grain

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title = "Instrumentation for the non-destructive optical measurement of trapped electrons in feldspar",

abstract = "A facility for the measurement of infrared photoluminescence (IRPL) has been developed for the Ris{\o} TL/OSL reader. The new IRPL measurement system uses an external laser light source at 1.49 eV (830 nm) and two photomultiplier tubes (PMT) for detecting emissions at ∼1.41 eV (880 nm) and ∼1.3 eV (955 nm) and an EMCCD. Pulsed IRPL measurement ensures a low background count rate by allowing the rejection of breakthrough from excitation light. We present the results of integrated IRPL measurements on both multiple- and single-grain aliquots, and finally demonstrate the potential of imaging natural K-feldspar samples and a granite rock slice.",

keywords = "Feldspar, Imaging, Infrared photoluminescence (IRPL), Optical dating, Single grain",

author = "M. Kook and R. Kumar and A.S. Murray and K.J. Thomsen and M. Jain",

year = "2018",

doi = "10.1016/j.radmeas.2018.06.001",

language = "English",

volume = "120",

pages = "247--252",

journal = "Radiation Measurements",

issn = "1350-4487",

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T1 - Instrumentation for the non-destructive optical measurement of trapped electrons in feldspar

AU - Kook, M.

AU - Kumar, R.

AU - Murray, A.S.

AU - Thomsen, K.J.

AU - Jain, M.

PY - 2018

Y1 - 2018

N2 - A facility for the measurement of infrared photoluminescence (IRPL) has been developed for the Risø TL/OSL reader. The new IRPL measurement system uses an external laser light source at 1.49 eV (830 nm) and two photomultiplier tubes (PMT) for detecting emissions at ∼1.41 eV (880 nm) and ∼1.3 eV (955 nm) and an EMCCD. Pulsed IRPL measurement ensures a low background count rate by allowing the rejection of breakthrough from excitation light. We present the results of integrated IRPL measurements on both multiple- and single-grain aliquots, and finally demonstrate the potential of imaging natural K-feldspar samples and a granite rock slice.

AB - A facility for the measurement of infrared photoluminescence (IRPL) has been developed for the Risø TL/OSL reader. The new IRPL measurement system uses an external laser light source at 1.49 eV (830 nm) and two photomultiplier tubes (PMT) for detecting emissions at ∼1.41 eV (880 nm) and ∼1.3 eV (955 nm) and an EMCCD. Pulsed IRPL measurement ensures a low background count rate by allowing the rejection of breakthrough from excitation light. We present the results of integrated IRPL measurements on both multiple- and single-grain aliquots, and finally demonstrate the potential of imaging natural K-feldspar samples and a granite rock slice.

KW - Feldspar

KW - Imaging

KW - Infrared photoluminescence (IRPL)

KW - Optical dating

KW - Single grain

U2 - 10.1016/j.radmeas.2018.06.001

DO - 10.1016/j.radmeas.2018.06.001

M3 - Journal article

SN - 1350-4487

VL - 120

SP - 247

EP - 252

JO - Radiation Measurements

JF - Radiation Measurements

ER -

Instrumentation for the non-destructive optical measurement of trapped electrons in feldspar

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