ILIAS Second Meeting of Low Background Activity J

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Geophysical measurements Wolfango Plastino Department of Physics - University of Roma Tre, Italy

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 ERMES Environmental Radioactivity Monitoring for Earth Sciences Scientific topics • Radiocarbon and tritium measurements (Radiodating Laboratory) • Radon groundwater monitoring (Environmental and geophysical monitoring of the Gran Sasso aquifer) • Development and characterization of new detectors for nuclear spectrometry of environmental radioactivity.

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Radiocarbon Plastino et al. , Radiocarbon, 2001 Plastino & Kaihola, Radiocarbon, 2004

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Also cited in: Handbook of Radioactivity Analysis (2003), Edited by Michael F. L’Annunziata, Academic Press, p. 538 (Chapter 6. Environmental Liquid Scintillation Analysis). Forewords by Dr Mohamed M. El. Baradei (Director General, International Atomic Energy Agency) Prof. Dr Werner Burkart (Deputy Director General, International Atomic Energy Agency)

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Tritium Plastino et al. , Geophys. Res. Lett. , submitted

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Radon Analysis of the correlations between the radon groundwater variations with the strain processes of the rock and transport properties related to the groundwater geochemistry ® 222 Rn + 4 He Ra 86 2 226 88 Radium decay involves the release of the excess energy which is shared between the a particle which forms (98. 1%), and the new radon atom. The emanating power of rocks is defined as the ratio between the amount of radon escaping from the solid matrix and that produced by radioactive decay. © United States Geological Survey

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Boni et al. , Mem. Soc. Geol. It. , 1986 al

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Plastino et al. , Earth Planet. Int.

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 © W. Aeschbach-Hertig, University of Heidelberg

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Plastino & Bella, Geophys. Res. Lett. , 2001

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Plastino et al. , Earth Planet. Sci. Lett.

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 The residual time series of the electrical conductivity, p. H, 222 Rn normalized to null mean value and unitary standard deviation. The estimated 3 s, i. e. the thresholds used to identify the spike-like anomalies are also indicated. Plastino et al. , Earth Planet. Sci. Lett.

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Fitts, Groundwater Science, 2002

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Caputo & Plastino, Geophys. J. Int. , 2004

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 New portable nuclear spectrometer IN OUT HV ELE P M T OUT Detector: YAP: Ce crystal Photomultiplier High-Voltage Power Supply Y A P IN Plastino et al. , Nucl. Inst. and Meth. , 2002

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Radon groundwater monitoring in situ IN OUT HV ELE P M T OUT Y A P IN - direct measurement in water

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Radiocarbon (and Tritium) • Using YAP: Ce vials • Using YAP: Ce powder CO 2 directly from combustion

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Scientific Collaborations (1/2) National Institute of Geophysics and Volcanology ENEA – National Institute for Metrology of Ionizing Radiations Tecnomare – ENI Group ACEA- Waterwork Society

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Seismology - Analysis of the correlations between the radon groundwater variations and the strain processes of tectonic interest; - Induced seismicity by groundwater transport properties using tritium analysis; - Gran Sasso seismic hazard. keywords: radon, tritium.

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Oceanography - new devices development for nuclear spectrometry of environmental radioactivity for undersea station GEOSTAR (Geophysical and Oceanographic Station for Abyssal Research); - Seawater samples analysis collected by GEOSTAR or oceanographic ships; - Endogenous gas samples analysis; keyword: environmental radioactivity.

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Paleoseismology - study of the characteristics of occurrence of large earthquakes in time and space understanding the fault geometry, kinematics, and long term rates of deformation using radiocarbon dating of organic deposits on the scarps; - Gran Sasso seismic hazard. keyword: radiocarbon.

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 CTBTO - new portable devices development for nuclear spectrometry of radioactivity induced by nuclear explosion test for On-site Inspections team; - ultra low level measurement of radioactivity in water and soil samples. keyword: radioactivity. CTBTO (Comprehensive Nuclear Test-Ban-Treaty Organization) General Assembly of the United Nations Resolution 50/245/96 Preparatory Commission for Comprehensive Nuclear-Test-Ban Treaty Organization – United Nations, Working Group B, Science and Technology Session, Vienna, Austria, February 15 th 2002. W. Plastino, Other Inspection Scenarios: Gamma ray spectrometry in extreme physical chemical environmental conditions. (Invited Talk)

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Metrology of Ionizing Radiations - Study of light-yield properties of scintillator crystals; - Radioactive standard sources; - Instruments calibration.

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Tecnomare – Eni Group - Undersea oil prospecting; - Undersea oil pipe-lines check.

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 ACEA – Waterwork Society - On-line environmental radioactivity network (aquifers and aqueducts).

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Scientific Collaborations (2/2) Perkin. Elmer Life and Analytical Sciences (Finland) University of Duisburg-Essen (Germany) University of Würzburg (Germany) Hellenic Center for Marine Research (Greece) Weizmann Institute of Science (Israel) Geological Survey of Israel (Israel) Geological Survey of Japan (Japan) National Institute of Research-Development for Isotopic and Molecular Technologies (Romania)

ILIAS Second Meeting of Low Background Activity J 1 Modane- January 12 th 2005 Dr Wolfango Plastino Department of Physics University of Roma Tre Via della Vasca Navale, 84 I-00146 Roma tel. : +39 06 55177277 fax: +39 06 5579303 e-mail: plastino@fis. uniroma 3. it