An in-situ gamma-ray spectrometer for the deep ocean.

Autor: Tsabaris C; Hellenic Centre for Marine Research, Institute of Oceanography, P.O. Box 712, GR-19013 Anavyssos, Greece. Electronic address: tsabaris@hcmr.gr., Androulakaki EG; Hellenic Centre for Marine Research, Institute of Oceanography, P.O. Box 712, GR-19013 Anavyssos, Greece., Alexakis S; Hellenic Centre for Marine Research, Institute of Oceanography, P.O. Box 712, GR-19013 Anavyssos, Greece., Patiris DL; Hellenic Centre for Marine Research, Institute of Oceanography, P.O. Box 712, GR-19013 Anavyssos, Greece.
Jazyk: angličtina
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2018 Dec; Vol. 142, pp. 120-127. Date of Electronic Publication: 2018 Sep 10.
DOI: 10.1016/j.apradiso.2018.08.024
Abstrakt: A low resolution subsea gamma-ray spectrometer is developed for monitoring radioactivity in the deep ocean. The detection system provides quantitative results combining experimental and simulated data. The system is tested for pressures up to 456 10 5 Pa and is demonstrated in the deep sea South of Crete (Greece) at a depth of 2700 m. The minimum detectable activity for 214 Bi considering a 7200 s measurement, was found 0.3 Bq/L due to the extremely low background contribution at high energies.
(Copyright © 2018 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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