Transferring Grains from Single-Grain Luminescence Discs to SEM Specimen Stubs
Department of Geology, Lund University, Sölvegatan 12, SE-223 62 Lund, Sweden
Department of Geosciences, UiT the Arctic University of Norway, PB 6050 Langnes, N-9037 Tromsø, Norway
Author to whom correspondence should be addressed.
Methods Protoc. 2019, 2(4), 87; https://doi.org/10.3390/mps2040087
Received: 1 October 2019 / Revised: 8 November 2019 / Accepted: 18 November 2019 / Published: 21 November 2019
(This article belongs to the Special Issue Methods in Dating and Other Applications using Luminescence)
The grain transfer protocol presents a step-by-step guide on how to successfully transfer positioned grains from a single-grain luminescence disc to a scanning electron microscope (SEM) specimen stub and how to transport them between laboratories. Single-grain luminescence analysis allows the determination of luminescence characteristics for individual sand-sized grains. By combining such luminescence data with other grain properties such as geochemical composition, shape, or structure also at single-grain level, it is possible to investigate factors controlling luminescence signals or study other material properties. The non-luminescence properties are typically measured in another instrument; thus, grains need to be transferred between machines and sample holders, and sometimes also between laboratories. It is then important that the position of each grain is known and stable so that the properties from the same grain are compared. By providing an easily observable orientation marker on the specimen stub, the hundred numbered grains from the single-grain disc can be transferred and later identified when analyzed in the SEM.