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

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

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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
Pages (from-to)247-252
Publication statusPublished - 2018
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

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

ID: 152737223