| Autor: |
Jean-Philippe Dancausse, Serge Eymard, Christophe Guy, Pierre Leveque, Philippe Bienvenu, Céline Gautier, Florence Goutelard, Patrick Bourdot, Jean-Marc Bonnerot, Dominique Carre, Hélène Isnard, Lionel Boucher, Gilles Ferlay |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
IOP Conference Series: Materials Science and Engineering. 9:012021 |
| ISSN: |
1757-899X |
| DOI: |
10.1088/1757-899x/9/1/012021 |
| Popis: |
In the French long-lived radionuclide (LLRN) transmutation program, several irradiation experiments were initiated in the Phenix fast neutron reactor to obtain a better understanding of the transmutation processes. The PROFIL experiments are performed in order to collect accurate information on the total capture integral cross sections of the principal heavy isotopes and some important fission products in the spectral range of fast reactors. One of the final goals is to diminish the uncertainties on the capture cross-section of the fission products involved in reactivity losses in fast reactors. This program includes two parts: PROFIL-R irradiated in a standard fast reactor spectrum and PROFIL-M irradiated in a moderated spectrum. The PROFIL-R and PROFIL-M irradiations were completed in August 2005 and May 2008, respectively. For both irradiations more than a hundred containers with isotopes of pure actinides and other elements in different chemical forms must be characterized. This raises a technical and analytical challenge: how to recover by selective dissolution less than 5 mg of isotope powder from a container with dimensions of only a few millimeters using hot cell facilities, and how to determine analytically both trace and ultratrace elemental and isotopic compositions with sufficient accuracy to be useful for code calculations. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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