Buscar
Mostrando ítems 31-40 de 73
Artículo
Neutron capture cross section of 90Zr: Bottleneck in the s-process reaction flow
(The American Physical Society, 2008)
The neutron capture cross sections of the Zr isotopes have important implications in nuclear astrophysics and for reactor design. The small cross section of the neutron magic nucleus 90Zr, which accounts for more than 50% ...
Ponencia
Measurement of capture cross sections of 90,91,92,94,96Zr isotopes at n_TOF
(AIP Publishing, 2005)
The neutron capture cross sections for Zr isotopes have important implications in nuclear technologies as well in the field of nuclear astrophysics. The innovative features of the n_TOF CERN facility allowed for an accurate ...
Artículo
Extragalactic background light inferred from AEGIS galaxy-SED-type fraction
(Oxford University Press, 2011)
The extragalactic background light (EBL) is of fundamental importance both for understanding the entire process of galaxy evolution and for γ-ray astronomy, but the overall spectrum of the EBL between 0.1 and 1000 μm has ...
Artículo
Measurement of the 151 Sm( n ,γ ) cross section from 0.6 eV to 1 MeV via the neutron time-of-flight technique at the CERN n TOF facility
(American Physical Society, 2006-03-17)
The 151Sm(n, γ) cross section was measured with the time-of-flight technique from 0.6 eV up to 1 MeV relative to the Au standard with an overall uncertainty of typically 6%. Neutrons were produced by spallation at the ...
Artículo
Measurement and resonance analysis of the 237Np neutron capture cross section
(American Physical Society, 2012)
The neutron capture cross section of 237Np was measured between 0.7 and 500 eV at the CERN n-TOF facility using the 4π BaF2 Total Absorption Calorimeter. The experimental capture yield was extracted minimizing all the ...
Ponencia
Measurement of the neutron induced fission cross section on transuranic (TRU) elements at the n_TOF facility at CERN
(American Institute of Physics, 2007)
During the 2004 campaign, the n_TOF collaboration measured neutron fission cross sections for 233U, 241,243Am, 245Cm, as well as the fission standards 235,238U, using a sealed Fission Ionization Chamber (FIC). The setup ...
Ponencia
Study of Neutron-Induced Fission Cross Sections of U, Am, and Cm at n_TOF
(AIP Publishing, 2010)
Neutron induced fission cross sections of several isotopes have been measured at the CERN n_TOF spallation neutron facility. Between them some measurements involve isotopes (233U, 241Am, 243Am, 245Cm) relevant for ...
Artículo
A phenomenological imaginary part of the optical potential for heavy ions
(Elsevier, 1983)
The depth of the imaginary part of the optical potential is derived from the assumption that, at a given energy and for each partial wave L, it is proportional to the compound nucleus density level up to a given excitation ...
Tesis Doctoral
El potencial núcleo-núcleo y el radio de absorción fuerte en la dispersión elástica de nucleos pesados
(1979)
Entre las dificultades que presenta el análisis de la reacción núcleo - núcleo, dentro de la aproximación anterior, posiblemente la mayor sea el tipo de potencial que entra en juego. Una de las mejores vías para conocer ...
Artículo
Dynamic effective potential for α-particle bound and quasibound states
(American Physical Society, 1996-09-01)
We exploit analytic properties of the optical potential for elastic scattering of α particles on nuclei to extract information on the effective interaction that should be used to describe the motion of a cluster of two ...