Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Timotheos, Altzitzoglou"'
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 330:985-996
The JRC applied six measurement techniques to standardise the activity of an 241Am solution in the frame of the 2003 key comparison CCRI(II)-K2.Am-241. The methods used were alpha-particle counting at a defined small solid angle, high-efficiency part
Autor:
Yetunde Aregbe, Rožle Jakopič, Stephan Richter, Marielle Crozet, Stefaan Pommé, Maria Marouli, Faidra Tzika, Cédric Rivier, Christophe Maillard, Timotheos Altzitzoglou, Danièle Roudil, Adelheid Fankhauser
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 327:495-504
The Joint Research Centre, in cooperation with the Commissariat à l’Energie Atomique et aux Energies Alternatives, produced a novel243Am spike reference material for mass spectrometry. Americium solution with an isotopic composition of 88%243Am an
Evaluation of the 2016 ENV57 MetroERM measurement comparison on 137Cs, 134Cs and 131I in air filters
Publikováno v:
Applied Radiation and Isotopes. 143:123-131
In 2016, the European Commission’s Joint Research Centre organised an interlaboratory comparison exercise on the measurement of 137Cs, 134Cs and 131I in air filters. The exercise was conducted in the frame of the MetroERM EMRP project with code ENV
Autor:
Stefaan Pommé, K.M. Ferreira, J. Paepen, R. Van Ammel, Ole Nähle, Karsten Kossert, H. Stroh, John Keightley, Timotheos Altzitzoglou, Leen Verheyen, Michel Bruggeman
Publikováno v:
Applied Radiation and Isotopes. 134:6-12
Some authors have raised doubt about the invariability of decay constants, which would invalidate the exponential-decay law and the foundation on which the common measurement system for radioactivity is based. Claims were made about a new interaction
Autor:
M. Bruggeman, Karsten Kossert, Timotheos Altzitzoglou, Stefaan Pommé, J. Lubbe, J. Golya, Youcef Nedjadi, Raphael Galea, R. Van Ammel, A. Ceccatelli, Mikael Hult, S. Bourke, H. Schrader, C Michotte, M.-N. Amiot, Matjaž Korun, W.M. van Wyngaardt, S Courte, Aldo Fazio, V. Chisté, M. I. Reinhard, H. Stroh, L. Verheyen, Branko Vodenik, Claude Bailat, M. Marouli, T. W. Jackson, P. De Felice, K.M. Ferreira, Frédéric Juget, B.R.S. Simpson, Sean Collins, François Bochud, J. Paepen, M.W. van Rooy, John Keightley, Ole Nähle, T. Buchillier, M.J. van Staden, T. Roy
Publikováno v:
Metrologia
Metrologia, IOP Publishing, 2017, 54 (1), pp.36-50. ⟨10.1088/1681-7575/54/1/36⟩
Metrologia, vol. 54, no. 1, pp. 36-50
Metrologia, 2017, 54 (1), pp.36-50. ⟨10.1088/1681-7575/54/1/36⟩
Metrologia, IOP Publishing, 2017, 54 (1), pp.36-50. ⟨10.1088/1681-7575/54/1/36⟩
Metrologia, vol. 54, no. 1, pp. 36-50
Metrologia, 2017, 54 (1), pp.36-50. ⟨10.1088/1681-7575/54/1/36⟩
International audience; The hypothesis that seasonal changes in proximity to the Sun cause variation of decay constants at permille level has been tested for radionuclides disintegrating through electron capture and beta plus decay. Activity measurem
Autor:
Philippe Cassette, T. Ziemek, Mario Rossi, Juncheng Liang, Pierino De Felice, Timotheos Altzitzoglou, Pilar Oropesa Verdecia, Brian E. Zimmerman, Youcef Nedjadi, Winifred van Wyngaardt, Tanya Shilnikova, A Arinc, Andrei Antohe, Raphael Galea, Marco Capogni, Karsten Kossert, Arunas Gudelis, K.B. Lee
A comparison of calculations of the activity of a 3H2O liquid scintillation source using the same experimental data set collected at the LNE-LNHB with a triple-to-double coincidence ratio (TDCR) counter was completed. A total of 17 laboratories calcu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::774ee90435037a9eb2285208eb34c922
https://nrc-publications.canada.ca/eng/view/object/?id=98a3366c-93a9-458b-ad6d-519ebf899d68
https://nrc-publications.canada.ca/eng/view/object/?id=98a3366c-93a9-458b-ad6d-519ebf899d68
Autor:
Rainer Dersch, Stefaan Pommé, Frédéric Chartier, Karsten Kossert, Andrej Rozkov, Ole Nähle, V. Lourenço, Eduardo García-Toraño, Jana Sochorová, Pavel Auerbach, Marta Fernández, V. Peyres, Philippe Cassette, Timotheos Altzitzoglou, Hélène Isnard, Marie-Martine Bé, Christophe Bobin, Anthony Nonell, A.I. Sánchez-Cabezudo
Publikováno v:
Applied Radiation and Isotopes
Applied Radiation and Isotopes, Elsevier, 2018, 140, pp.157-162. ⟨10.1016/j.apradiso.2018.06.007⟩
Applied Radiation and Isotopes, 2018, 140, pp.157-162. ⟨10.1016/j.apradiso.2018.06.007⟩
Applied Radiation and Isotopes, Elsevier, 2018, 140, pp.157-162. ⟨10.1016/j.apradiso.2018.06.007⟩
Applied Radiation and Isotopes, 2018, 140, pp.157-162. ⟨10.1016/j.apradiso.2018.06.007⟩
International audience; The radionuclide $^{129}$I is a long-lived fission product that decays to $^{129}$Xe by beta-particle emission. It is an important tracer in geological and biological processes and is considered one of the most important radio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c2b226edb05ea5cd2a262b0ecc4ab17
https://hal-cea.archives-ouvertes.fr/cea-01916670
https://hal-cea.archives-ouvertes.fr/cea-01916670
Publikováno v:
Applied Radiation and Isotopes. 109:36-40
In 2014, the Joint Research Centre organised an interlaboratory comparison of (137)Cs measurement in air filters. This paper describes the context of the European measurement comparisons, as well as the technical implementation. Furthermore, sample t
Autor:
Andrej Rožkov, Timotheos Altzitzoglou
Publikováno v:
Applied Radiation and Isotopes. 109:281-285
The (129)I, (151)Sm and (166m)Ho standardisations using the CIEMAT/NIST efficiency tracing method, that have been carried out in the frame of the European Metrology Research Program project "Metrology for Radioactive Waste Management" are described.
Publikováno v:
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 143
In 2016, the European Commission's Joint Research Centre organised an interlaboratory comparison exercise on the measurement of