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

Graduate Thesis uoadl:2779049 724 Read counter

Unit:
Department of Geology and Geoenviromment
Library of the School of Science
Deposit date:
2018-07-21
Year:
2018
Author:
Papakosta Vaia
Supervisors info:
Μαρία Τριανταφύλλου, Καθηγήτρια, Τμήμα Γεωλογίας και Γεωπεριβάλλοντος, ΕΚΠΑ
Θεόδωρος Μερτζιμέκης, Επίκουρος Καθηγητής, Τμήμα Φυσικής, ΕΚΠΑ
Original Title:
Μελέτη του υποθαλάσσιου υδροθερμικού πεδίου της χερσονήσου των Μεθάνων με χρήση φασματοσκοπίας ακτίνων-γάμμα
Languages:
Greek
Translated title:
Gamma spectroscopy studies of the underwater hydrothermal vent field of the Methana peninsula
Summary:
A preliminary study of natural radioactivity was conducted on the thermal spas in Methana Peninsula, which belongs to the Hellenic Volcanic Arc and is characterized by hydrothermal vent activity. To carry out this research, 17 water samples were collected from thermal springs around and underwater of the volcanogenic Peninsula at depths ranging 0-5 m from the surface.

A NaI(Tl)-based spectrometer (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.
Main subject category:
Science
Keywords:
Saronic gulf, Methana peninsula, geology, hydrothermal vent field, spectroscopy, gamma-ray
Index:
No
Number of index pages:
0
Contains images:
No
Number of references:
25
Number of pages:
80
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