PIXE imaging of hyperaccumulator plants using the Maia detector array

Jamie S. Laird*, Chris G. Ryan, Robin A. Kirkham, Antony van der Ent, David N. Jamieson

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)

Abstract

With its large solid angle and an input count rate beyond 10 M/s, the PIXE Maia system, recently commissioned on the CSIRO-MARC NMP at the University of Melbourne, is ideally suited to rapid, large area, high definition mapping of biological materials such as hyperaccumulator plants. These plants possess an unusual ability to accumulate large levels of toxic elements from their local environment. In this paper we summarise results collected on three accumulators, two Ni and one As. Damage issues related to PIXE analysis of materials are briefly discussed in the context of higher beam currents and fluorescence data collected to minimise their influence. Elemental maps for the three samples are then discussed as are the obvious advantages of the Maia system.

Original languageEnglish
Pages (from-to)73-78
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume451
DOIs
Publication statusPublished - 15 Jul 2019
Externally publishedYes

Keywords

  • Hyper-accumulator plants
  • Nuclear Microprobe (NMP)
  • Particle Induced X-ray Emission (PIXE)
  • Phytomining

Cite this