Conveners
Session 12 - Radioactive elements in the environment, radiation archeometry and Health Physics
- Alexandra Ioannidou (ARISTOTLE UNIVERSITY OF THESSALONIKI, Greece)
- Flavia Groppi (LASA, Università degli Studi di Milano and INFN-Milano, Italy)
Prof.
Sue Clark
(Washington State University, USA)
21/09/2012, 08:00
Radioactive elements in the environment, radiation archeometry and Health Physics
Invited Lecture
Savannah River Site (SRS) is one of several US Department of Energy (DOE) sites that have been used to produce nuclear materials for defense, industrial, and medical purpose. During several decades of processing, low-level radioactive effluents were discharged at the site, which have subsequently migrated away from the disposal area. Remediation of the area is needed; however, remedial action...
Prof.
Grazia Gambarini
(Università degli Studi di Milano, Italy)
21/09/2012, 08:20
Radioactive elements in the environment, radiation archeometry and Health Physics
Invited Lecture
Gel dosimeters allow in-phantom verification of the absorbed dose spatial distribution in conformal radiotherapy treatments. Particularly advantageous are Fricke gel dosimeters in form of layers that can be analysed with very simple instrumentation, give precise results if properly calibrated and offer particular advantages in the mixed neutron-gamma fields of boron neutron capture therapy...
Prof.
Gabriele Wallner
(Inst. of Inorganic Chemistry, Univ. of Vienna, Währingerstr. 42, A-1090 Vienna, Austria)
21/09/2012, 08:40
Radioactive elements in the environment, radiation archeometry and Health Physics
Invited Lecture
236U with a half-life of 2.3∙107 years is produced via thermal neutron capture on 235U. In nature these neutrons may result from (α,n) reactions on lighter nuclides, spontaneous fission of 238U, induced fission of 235U and at the Earth surface they are part of the cosmic rays. Only small amounts of 235U are produced naturally from uranium in ores, soils and rocks, but a huge amount is produced...
Prof.
Tobias Reich
(Johannes Gutenberg-Universität Mainz, Germany)
21/09/2012, 09:00
Radioactive elements in the environment, radiation archeometry and Health Physics
Invited Lecture
In several European countries argillaceous rocks have been considered as potential host rock for the construction of radioactive waste disposal repositories. Among potential migration paths, sorption and diffusion of radionuclides are the most important processes for the migration of these elements beyond the engineered barriers of the repository.
We have investigated the sorption of...
Dr
Ezio Previtali
(Istituto Nazionale di Fisica Nucleare, Sez. Milano Bicocca, Italy)
21/09/2012, 09:20
Radioactive elements in the environment, radiation archeometry and Health Physics
Invited Lecture
In high sensitive experiments for rare events physics searches, the determination of contaminants is one of the most critical issue. Radioactive contamination in constructing materials can mimic the tiny signal of the studied events and this reduces the global experimental sensitivities. To fulfill the requests of experiments like double beta decay or dark matter searches, sensitivities in the...
Dr
Marcus Altmaier
(Karlsruhe Institute of Technology, Institute for Nuclear Waste Disposal, Germany)
21/09/2012, 09:40
Radioactive elements in the environment, radiation archeometry and Health Physics
Oral Communications
In order to assess the long-term safety of a nuclear waste repository it is essential to derive robust predictions of radionuclide solubility and speciation. Based upon correct and reliable chemical models it is possible to derive comprehensive sets of thermodynamic data and quantitatively analyse radionuclide behaviour for different scenarios. Coupling modern actinide speciation tools and...
Ms
Hanna Tuovinen
(University of Helsinki, Finland)
21/09/2012, 09:55
Radioactive elements in the environment, radiation archeometry and Health Physics
Oral Communications
Many new ore prospecting projects have been launched recently in Finland, seeking to exploit both metalliferous and non-metalliferous (e.g. phosphate) mineral deposits. Currently there is increasing awareness of the radiological impact of non-nuclear industries that extract and/or process ores containing naturally occurring radioactive material (NORM). These industrial activities may cause...
Dr
Dolores Arginelli
(ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Radiation Protection Institute, Integrated Laboratory of Radioactivity Measurement and Monitoring, Italy)
21/09/2012, 10:10
Radioactive elements in the environment, radiation archeometry and Health Physics
Oral Communications
Since more than 40 years ENEA has been working in the field of radioactivity measurement especially for environmental and internal dosimetry monitoring purposes. This activity represents a great heritage of competences and experience, now collected in the Integrated Laboratory of Radioactivity Measurement and Monitoring of the ENEA Institute of Radiation Protection (IRP MIR), which acts in...
