PIXE analyses of polished otoliths for identification of anadromous whitefish in the Baltic Sea

Jan-Olof Lill, Yvette Heimbrand, Joakim Slotte, Mikael Himberg, Ann-Britt Florin, Henry Hägerstrand

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)


In this work we describe an application of particle-induced X-ray emission (PIXE) to the elemental analysis of polished otoliths of whitefish. Two spots on polished otoliths were irradiated; one spot in the core region of the otolith and another one close to the edge. The irradiations were performed in air with a collimated 0.5 mm proton beam. The ratio of the strontium concentrations in the two spots was used to distinguish between different ecotypes (river, sea, lake) of whitefish. Criteria on the ratios were suggested for identification of the whitefish forms. The results were compared to results of mu-beam PIXE scans as well as multi-point scans with the 0.5 mm proton beam. The measuring set-up and the results are discussed. (C) 2015 Elsevier B.V. All rights reserved.
Original languageUndefined/Unknown
Pages (from-to)66–69
Number of pages4
JournalNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed


  • Baltic Sea
  • Otolith
  • PIXE
  • Whitefish

Cite this