Institution
National Nuclear Energy Commission
Government•Rio de Janeiro, Brazil•
About: National Nuclear Energy Commission is a government organization based out in Rio de Janeiro, Brazil. It is known for research contribution in the topics: Dosimetry & Laser. The organization has 3816 authors who have published 4694 publications receiving 59951 citations.
Topics: Dosimetry, Laser, Neutron, Corrosion, Monte Carlo method
Papers published on a yearly basis
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76 citations
TL;DR: In this paper, the results of absorption, emission and fluorescence lifetime measurements (for the 4 I 13/2 → 4 I 15/2 transition) are presented for lead fluoroborate glasses doped with different concentrations of Er 3+ varying from 0.22 x 10 20 ions/cm 3 to 5.96 x 1020 ions/ cm 3, the calculated Judd-Ofelt parameters are: Ω 2 = (1.2 ± 0.1) × 10 -20 cm 2, Ω 4 = (0.59 + 0.04) x 10 -
Abstract: Results of absorption, emission and fluorescence lifetime measurements (for the 4 I 13/2 → 4 I 15/2 transition) are presented for lead fluoroborate glasses doped with different concentrations of Er 3+ varying from 0.22 x 10 20 ions/cm 3 to 5.96 x 10 20 ions/cm 3 . The calculated Judd-Ofelt parameters are: Ω 2 = (1.2 ± 0.1) × 10 -20 cm 2 , Ω 4 = (0.59 + 0.04) x 10 -20 and Ω 6 = (0.42 ± 0.03) 10 -20 cm 2 . The emission cross-sections are calculated using McCumber and Fuchtbauer-Ladenburg methods. The sample with 2.20 × 10 20 ions/ cm -3 has an emission cross-section with maximum of 0.46 x 10 -20 cm 2 , at 1532 nm, fluorescence effective bandwidth of 66nm and fluorescence lifetime of about 1 ms.
76 citations
TL;DR: In this paper, generalized analytical expressions for the instantaneous pulse problem formulated from the generalized Dirac delta function for situations with first-type or third-type inlet boundary conditions of both finite and semi-infinite domains were developed.
75 citations
TL;DR: This method uses the concept of a pure fuzzy logic system to treat the traditional FMEA parameters: probabilities of occurrence, severity and detection and demonstrates the great potential of the inference system and advantage of the gray approach in this class of problems.
75 citations
TL;DR: In this article, simplified versions of the Furutani and Ruddi (1980) radiochemical method were tested and applied in the determination, by in-situ incubations, of specific net Hg methylation rates in water and surface sediments of the Madeira river goldmining area.
75 citations
Authors
Showing all 3838 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Giorgio Parisi | 108 | 941 | 60746 |
| Sergio Ferrara | 105 | 726 | 44507 |
| Richard Wilson | 70 | 809 | 21477 |
| Eliana B. Souto | 66 | 447 | 15706 |
| Andrea Saltelli | 65 | 184 | 31540 |
| Fausto Croce | 51 | 162 | 11753 |
| Sílvia M. Rocha | 42 | 163 | 4934 |
| Marcos Duarte | 41 | 122 | 5855 |
| Luiz Gustavo Cançado | 41 | 106 | 13155 |
| Ruggero Caminiti | 41 | 267 | 7296 |
| Francesco Romanelli | 40 | 236 | 5756 |
| Mario Molinaro | 39 | 111 | 5923 |
| Giovanna Cenacchi | 38 | 217 | 4948 |
| Claudio Pellegrini | 38 | 235 | 5885 |
| Maria Manuela Silva | 37 | 324 | 5258 |