| Thème(s) : |
 |
Physique/Physique Nucléaire Expérimentale
|
|
| Titre : |
|
Internal conversion and summing effects in heavy-nuclei spectroscopy |
|
| Auteur : |
|
Ch. Theisen1, A. Lopez-Martens2, Ch. Bonnelle3 |
|
| Laboratoire : |
|
|
|
| Résumé : |
|
Internal conversion of low-energy nuclear transitions occurs with a high probability in heavy nuclei. After the emission of the conversion electron, a cascade of X-rays, Auger or Coster–Krönig electrons takes place. In $\alpha$-decay experiments in which the nuclei of interest are implanted into a silicon detector, these atomic processes contribute to the detected energy. To understand the distortions of $\alpha$-particle energy spectra, knowledge of the various atomic yields is required. Using state-of-the-art calculations, new atomic yields are computed in $_99$Es and compared to those available in the literature. Detailed simulations of the $^{251}_{101}$Md $\alpha$ decay are performed and compared to experimental data. Possible ways to discriminate between the available atomic yields are also discussed. |
|
|
| Type de publication : |
|
Articles dans des revues avec comité de lecture |
|
Date de publication
ou d'écriture : |
|
2008 |
|
| Nom du périodique : |
|
Nuclear Instruments and Methods in Physics Research Research: Accelerators, Spectrometers, Detectors and Associated Equipment |
|
| Volume : |
|
589 |
|
| Page/Article : |
|
230-242 |
|
|
| Identifiant local : |
|
IRFU-08-17 |
|
| Classification PACS : |
|
23.20.Nx; 32.50.+d; 32.80.Hd; 23.60.+e |
|
| Commentaire : |
|
Expérience GANIL, spectrometre LISE |
|
| Mot(s)-clé(s) : |
|
Internal conversion and extranuclear effects – Fluorescence – Auger effect – alpha decay |
|
Récupérer au format
