IODP Expedition 403 Natural gamma radiation

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Authors: Renata Giulia Lucchi, Kristen St. John, Thomas A. Ronge, Maria A. Barcena, Stijn De Schepper, Lucinda Cameron Duxbury, Catalina Gebhardt, Alba González-Lanchas, Gryphen Goss, Nicole M. Greco, Victor Gronmyr, Jens Gruetzner
+15 more Lauren A. Haygood, Katrine Husum, Mutsumi Iizuka, Aruggoda K.I.U. Kapuge, Adriane R. Lam, Olga Libman-Roshal, Yanguang Liu, Lindsey Rose Monito, Brendan Reilly, Yair Rosenthal, Paul Ruzycki, Yuhi Sakai, Adukkam Veedu Sijinkumar, Yusuke Suganuma, Yi Zhong
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Abstract

Natural gamma radiation (NGR) data in the ~0.1 to 3.0 MeV range were measured using eight custom-designed sodium iodide (thallium) [NaI(Tl)] detectors arranged along the core measurement axis at 20 cm intervals. The NGR system uses layers of passive shielding (lead) and active shielding (plastic scintillators and coincidence electronics) to reduce the cosmic-ray signal for low-count analysis of sediment core sections and to obtain the maximum signal-to-noise ratio. Data are reported on a total counts per second basis and the raw spectral files are available as compressed files for later analysis.

Fields of Study & Subjects

Radiation Detection and Scintillator Technologies Radioactivity and Radon Measurements Radioactive Decay and Measurement Techniques

Publication details

Journal / source
Zenodo (CERN European Organization for Nuclear Research)
Publication date
26 January 2026
Document type
Dataset