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Underground gamma-ray measurements of radium isotopes from hydrothermal plumes in the deep Pacific Ocean
Hult, M.; Charette, M.; Lutter, G.; Marissens, G.; Henderson, P.; Sobiech-Matura, K.; Simgen, H. (2019). Underground gamma-ray measurements of radium isotopes from hydrothermal plumes in the deep Pacific Ocean. Appl. Radiat. Isot. 153: 108831. https://hdl.handle.net/10.1016/j.apradiso.2019.108831
In: Applied Radiation and Isotopes. Elsevier: Amsterdam. ISSN 0969-8043; e-ISSN 1872-9800
Peer reviewed article  
Available in  Authors 
    Vlaams Instituut voor de Zee: Open access 361549 [ download pdf ]
Keyword
    Marine/Coastal
Author keywords
    gamma-ray spectrometry; HPGe detectors; Hydrothermal plume; Climate change; Underground laboratory; GEOTRACES
Authors  Top 
  • Hult, M.
  • Charette, M.
  • Lutter, G.
  • Marissens, G.
  • Henderson, P.
  • Sobiech-Matura, K.
  • Simgen, H.
Abstract
    The radium isotopes 226Ra and 228Ra can provide important data on the dynamics of deep-sea hydrothermal plumes that travel the oceans for decades and have great impact on the ocean chemistry. This study focuses on parameters important for obtaining low detection limits for 228Ra using gamma-ray spectrometry. It is present at mBq-levels in samples collected during the US GEOTRACES 2013 cruise to the Southeast Pacific Ocean.
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