SIRIOL: A Sensitive InfraRed Instrument for phOto Luminescence measurements of feldspar

M. Gunn; G.A.T. Duller; H.M. Roberts

doi:10.1016/j.radmeas.2022.106782

SIRIOL: A Sensitive InfraRed Instrument for phOto Luminescence measurements of feldspar

M. Gunn, G.A.T. Duller, H.M. Roberts

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Abstract

The new InfraRed PhotoLuminescence (IRPL) signal in feldspar offers a promising alternative to the well-established OSL method to recover the absorbed radiation dose for dating purposes. The non-destructive readout using Stokes shifted photoluminescence offers the opportunity to carry out repeat measurements to improve the signal to noise ratio, and the steady state signal enables straightforward spatially and spectrally resolved measurements. However, the exploitation of the IRPL signal has been hampered by a large background signal, making the IRPL emission that is of interest for measuring absorbed dose difficult to discriminate.

A new IRPL detection attachment for the Risø luminescence reader has been developed which enables measurement of the IRPL emission with a signal to background at least two orders of magnitude higher than reported previously. These improvements have been achieved through a combination of a bespoke optical design along with careful selection of filters and coatings. Key instrument design details are presented along with some preliminary results from slices of museum specimens of feldspar.

Original language	English
Article number	106782
Pages (from-to)	106782
Number of pages	9
Journal	Radiation Measurements
Volume	154
Early online date	13 May 2022
DOIs	https://doi.org/10.1016/j.radmeas.2022.106782
Publication status	Published - 01 Jun 2022

Keywords

Infrared photoluminescence IRPL
Instrument development
Signal optimisation
luminescence imaging
Luminescence dating
OPTICALLY STIMULATED LUMINESCENCE
THERMOLUMINESCENCE
ELECTRONS

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title = "SIRIOL: A Sensitive InfraRed Instrument for phOto Luminescence measurements of feldspar",

abstract = "The new InfraRed PhotoLuminescence (IRPL) signal in feldspar offers a promising alternative to the well-established OSL method to recover the absorbed radiation dose for dating purposes. The non-destructive readout using Stokes shifted photoluminescence offers the opportunity to carry out repeat measurements to improve the signal to noise ratio, and the steady state signal enables straightforward spatially and spectrally resolved measurements. However, the exploitation of the IRPL signal has been hampered by a large background signal, making the IRPL emission that is of interest for measuring absorbed dose difficult to discriminate.A new IRPL detection attachment for the Ris{\o} luminescence reader has been developed which enables measurement of the IRPL emission with a signal to background at least two orders of magnitude higher than reported previously. These improvements have been achieved through a combination of a bespoke optical design along with careful selection of filters and coatings. Key instrument design details are presented along with some preliminary results from slices of museum specimens of feldspar.",

keywords = "Infrared photoluminescence IRPL, Instrument development, Signal optimisation, luminescence imaging, Luminescence dating, OPTICALLY STIMULATED LUMINESCENCE, THERMOLUMINESCENCE, ELECTRONS",

author = "M. Gunn and G.A.T. Duller and H.M. Roberts",

note = "Funding Information: This work was supported by the UK Space Agency (grant ST/P001998/1 ) and also forms part of the HEFCW supported SPARCL initiative at the Aberystwyth Luminescence Research Laboratory (ALRL) in Aberystwyth University. We thank the reviewers for their helpful comments which have greatly improved the manuscript. Publisher Copyright: {\textcopyright} 2022 The Authors",

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doi = "10.1016/j.radmeas.2022.106782",

language = "English",

volume = "154",

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journal = "Radiation Measurements",

issn = "1350-4487",

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AU - Roberts, H.M.

N1 - Funding Information: This work was supported by the UK Space Agency (grant ST/P001998/1 ) and also forms part of the HEFCW supported SPARCL initiative at the Aberystwyth Luminescence Research Laboratory (ALRL) in Aberystwyth University. We thank the reviewers for their helpful comments which have greatly improved the manuscript. Publisher Copyright: © 2022 The Authors

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Y1 - 2022/6/1

N2 - The new InfraRed PhotoLuminescence (IRPL) signal in feldspar offers a promising alternative to the well-established OSL method to recover the absorbed radiation dose for dating purposes. The non-destructive readout using Stokes shifted photoluminescence offers the opportunity to carry out repeat measurements to improve the signal to noise ratio, and the steady state signal enables straightforward spatially and spectrally resolved measurements. However, the exploitation of the IRPL signal has been hampered by a large background signal, making the IRPL emission that is of interest for measuring absorbed dose difficult to discriminate.A new IRPL detection attachment for the Risø luminescence reader has been developed which enables measurement of the IRPL emission with a signal to background at least two orders of magnitude higher than reported previously. These improvements have been achieved through a combination of a bespoke optical design along with careful selection of filters and coatings. Key instrument design details are presented along with some preliminary results from slices of museum specimens of feldspar.

AB - The new InfraRed PhotoLuminescence (IRPL) signal in feldspar offers a promising alternative to the well-established OSL method to recover the absorbed radiation dose for dating purposes. The non-destructive readout using Stokes shifted photoluminescence offers the opportunity to carry out repeat measurements to improve the signal to noise ratio, and the steady state signal enables straightforward spatially and spectrally resolved measurements. However, the exploitation of the IRPL signal has been hampered by a large background signal, making the IRPL emission that is of interest for measuring absorbed dose difficult to discriminate.A new IRPL detection attachment for the Risø luminescence reader has been developed which enables measurement of the IRPL emission with a signal to background at least two orders of magnitude higher than reported previously. These improvements have been achieved through a combination of a bespoke optical design along with careful selection of filters and coatings. Key instrument design details are presented along with some preliminary results from slices of museum specimens of feldspar.

KW - Infrared photoluminescence IRPL

KW - Instrument development

KW - Signal optimisation

KW - luminescence imaging

KW - Luminescence dating

KW - OPTICALLY STIMULATED LUMINESCENCE

KW - THERMOLUMINESCENCE

KW - ELECTRONS

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DO - 10.1016/j.radmeas.2022.106782

M3 - Article

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JO - Radiation Measurements

JF - Radiation Measurements

M1 - 106782

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SIRIOL: A Sensitive InfraRed Instrument for phOto Luminescence measurements of feldspar

Abstract

Keywords

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Luminescence Age Dating for in-situ Environments - DGES see 12190

Luminescence Age Dating for In-situ Environments

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SIRIOL: A Sensitive InfraRed Instrument for phOto Luminescence measurements of feldspar

Abstract

Keywords

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Projects

Luminescence Age Dating for in-situ Environments - DGES see 12190

Luminescence Age Dating for In-situ Environments

Cite this