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Autor Fraile Prieto, Luis Mario |
Documentos disponibles escritos por este autor (73)
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Total absorption gamma-ray spectroscopy is used to measure accurately the intensity of gamma emission from neutron-unbound states populated in the ?-decay of delayed-neutron emitters. From the comparison of this intensity with the intensity of n[...]texto impreso
The emission of neutron pairs from the neutron-rich N = 12 isotones ¹?C and ²?O has been studied by high-energy nucleon knockout from ¹?N and ²¹O secondary beams, populating unbound states of the two isotones up to 15 MeV above their two-neutron[...]texto impreso
Three observables of interest for present and future reactors depend on the beta decay properties of the fission products: antineutrinos from reactors, the reactor decay heat and delayed neutron emission. In these proceedings, we present new res[...]texto impreso
Background: Models describing nuclear fragmentation and fragmentation fission deliver important input for planning nuclear physics experiments and future radioactive ion beam facilities. These models are usually benchmarked against data from sta[...]texto impreso
In this work we report on total absorption ?-ray spectroscopy measurements of the ? decay of fission products that are important contributors to the antineutrino spectrum. The experiment was performed at IGISOL as a part of a campaign of measure[...]texto impreso
The even-even N=90 isotones with Z=60-66 are known to undergo a first order phase transition. Such a phase transition in atomic nuclei is characterized by a sudden change of the shape of the nucleus due to changes in the location of the potentia[...]texto impreso
A novel method for direct electronic "fast-timing" lifetime measurements of nuclear excited states via gamma-gamma coincidences using an array equipped with N very fast high-resolution LaBr3(Ce) scintillator detectors is presented. The generaliz[...]texto impreso
Beta decay is a primary source of information of the structure of a nucleus. An accurate measurement of the half-life of a nucleus is essential for the proper determination of the reduced Gammow-Teller transition probability B(GT). In this work,[...]texto impreso
Fraile Prieto, Luis Mario ; Mach, H. ; Olaizola, B. ; Paziy, V. ; Vedia Fernández, María Victoria | Elsevier Science | 2016-09-10The gamma-ray decay of excited states of the one-valence-proton nucleus Sb-133 has been studied using cold-neutron induced fission of U-235 and Pu-241 targets, during the EXILL campaign at the ILL reactor in Grenoble. By using a highly efficient[...]texto impreso
At the PF1B cold neutron beam line at the Institut Laue Langevin, the EXILL array consisting of EXOGAM, GASP and ILL-Clover detectors was used to perform (n,gamma) measurements at very high coincidence rates. About ten different reactions were m[...]texto impreso
Fraile Prieto, Luis Mario ; Vedia Fernández, María Victoria ; otros, ... | American Physical Society | 2019-08-09The beta-intensity distributions of the decays of Nb-100gs,Nb-100m and Nb-102gs,Nb-102m have been determined using the total absorption gamma-ray spectroscopy technique. The JYFLTRAP double Penning trap system was employed in a campaign of chall[...]texto impreso
The accurate determination of reactor antineutrino spectra remains a very active research topic for which new methods of study have emerged in recent years. Indeed, following the long-recognized reactor anomaly (measured antineutrino deficit in [...]texto impreso
Preliminary results from beta decay studies of nuclei that are important for reactor applications are presented. The beta decays have been studied using the total absorption technique (TAS) and the pure beams provided by the JYFLTRAP system at t[...]