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

    Research output: Contribution to journalJournal articleResearchpeer-review

    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 languageEnglish
    JournalRadiation Measurements
    Volume120
    Pages (from-to)247-252
    ISSN1350-4487
    DOIs
    Publication statusPublished - 2018

    Keywords

    • Feldspar
    • Imaging
    • Infrared photoluminescence (IRPL)
    • Optical dating
    • Single grain

    Cite this

    @article{e1816431d1104af48d670378872f2caa,
    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",
    publisher = "Pergamon Press",

    }

    Instrumentation for the non-destructive optical measurement of trapped electrons in feldspar. / Kook, M.; Kumar, R.; Murray, A.S.; Thomsen, K.J.; Jain, M.

    In: Radiation Measurements, Vol. 120, 2018, p. 247-252.

    Research output: Contribution to journalJournal articleResearchpeer-review

    TY - JOUR

    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

    VL - 120

    SP - 247

    EP - 252

    JO - Radiation Measurements

    JF - Radiation Measurements

    SN - 1350-4487

    ER -