منابع مشابه
0 Molecular Collective Vibrations in the Ternary Neutronless Fission of 252 Cf Ş
Based on a recent experimental finding which may suggest the existence of a tri-nuclear molecular structure before the cold ternary fragmentation of 252Cf takes place, we solved the eigenvalue problem of a certain class of vibrations which are very likely to occur in these molecules. These oscillations are the result of the joined action of rotations of the heavier fragments and the transversal...
متن کاملProposal for the 252 Cf source upgrade to the ATLAS facility
Beams of accelerated exotic neutron-rich nuclei allow access to little known regions of the nuclear landscape that are important both structurally and for r-process nucleosynthesis. We propose to increase the radioactive beam capabilities of the ATLAS accelerator facility by the installation of a new source of ions to provide beams of shortlived neutron-rich isotopes. These isotopes will be obt...
متن کاملShielding of Radiation Fields Generated by Cf-252 in a Concrete Maze, Part 1- Experiment
A concrete room with a single-legged maze was constructed in order to simulate a medical accelerator room. Gamma and neutron measurements were performed along the maze with a) a 252 Cf source and b) a tungstenmoderated Cf source placed inside the room. The measurements were repeated after placing an inner borated polyethylene door of varying thickness (2.54 -10.16 cm) at 2 different locations. ...
متن کاملPrecision Mass Measurements of Heavy 252 Cf Fission Fragments Near the r - process Path
The path of the astrophysical r process and the resulting elemental distribution are dependent on the neutron-separation energies of species far from stability. The mass models used to extrapolate these energies have increasing uncertainties with neutron number. Therefore, precision mass measurements of species near the r-process path are vital to generate more precise predictions of elemental ...
متن کاملNew determination of the Ba - Mo yield matrix for 252 Cf
Using triple-coincidence events of prompt fission gamma rays from 1995 Gammasphere data on spontaneous fission of Cf, we made a careful analysis of the yield matrix of coincident pairs of barium (Z556) and molybdenum (Z542) fission fragments. Branching from gamma bands (K52) and octupole bands (K50) are presented for even-even partners, where observable. From this reanalysis the previously prop...
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ژورنال
عنوان ژورنال: Journal of Radioanalytical and Nuclear Chemistry
سال: 2012
ISSN: 0236-5731,1588-2780
DOI: 10.1007/s10967-012-2152-9