Gamma spectroscopy studies of the underwater hydrothermal vent field of the Methana Peninsula

Published: Απρ 1, 2019
Methana Peninsula thermal spa hydrothermal activity gamma–ray spectroscopy
V. Papakosta
T. J. Mertzimekis
M. Triantafyllou
A preliminary study of natural radioactivity was conducted on the thermal spas in Methana Peninsula. To carry out this research, a collection of 17 water samples were taken from thermal springs around and underwater of the volcanogenic Peninsula at depths ranging 0–5 m. The Methana peninsula belongs to the Hellenic Volcanic Arc and is characterized by hydrothermal vent activity. A NaI(Tl) scintillator (AMESOS) was used to carry out gamma–ray counting of the samples to deduce the activity concentrations of the natural radionuclides of the 238U and 232Th decay series, as well as 40K in spa waters. Results are expected to provide information on the geological setting of the Methana peninsula. The impact of naturally occurring radioisotopes to human health has also been assessed in terms of the radiation dose risk corresponding to the measured activities.
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C.A. Kalfas et al., NIM A 830, 265 (2016)
Nucleide – Lara, url:
G. Gilmore, Practical Gamma Ray Spectrometry, Wiley & Sons (2008)
C. Katsiva, BSc thesis, UoA (2015)
A. Karailias et al., HNPS2015 Proceedings, Ioannina (2015)
Effects of Ionizing Radiation UNSCEAR 2000, Report to the General Assembly with Scientific Annex