Publication Date:
2017-04-04
Description:
GEMS (Gamma Energy Marine Spectrometer) is a prototype of an autonomous radioactivity sensor for underwater measurements, developed in the framework for a development of a submarine telescope for neutrino detection (KM3NeT Design Study Project). The spectrometer is highly sensitive to gamma rays produced by 40K decays but it can detect other natural (e.g., 238U,232Th) and anthropogenic radio-nuclides (e.g., 137Cs). GEMS was firstly tested and calibrated in the laboratory using known sources and it was successfully deployed for a long-term (6 months) monitoring at a depth of 3200 m in the Ionian Sea (Capo Passero, offshore Eastern Sicily). The instrument recorded data for the whole deployment period within the expected specifications. This monitoring provided, for the first time, a continuous time-series of radioactivity in deep-sea.
Description:
Published
Description:
S145–S147
Description:
1.8. Osservazioni di geofisica ambientale
Description:
JCR Journal
Description:
restricted
Keywords:
NaI(Tl) sensor
;
Underwater spectrometer
;
Marine radioactivity
;
03. Hydrosphere::03.02. Hydrology::03.02.04. Measurements and monitoring
;
05. General::05.04. Instrumentation and techniques of general interest::05.04.99. General or miscellaneous
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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