scholarly journals Delayed neutrons as a probe of nuclear charge distribution in fission of heavy nuclei by neutrons

2002 ◽  
Vol 41 (1-4) ◽  
pp. 117-124 ◽  
Author(s):  
S.G. Isaev ◽  
V.M. Piksaikin ◽  
L.E. Kazakov ◽  
V.A. Roshchenko
Keyword(s):  
Charge Distribution ◽  
Nuclear Charge ◽  
Heavy Nuclei ◽  
Delayed Neutrons ◽  
Nuclear Charge Distribution

Evidence for α-particle structure in medium-heavy nuclei from optical isotope shifts

1975 ◽  
Vol 342 (1628) ◽  
pp. 51-54 ◽  
Keyword(s):  
Charge Distribution ◽  
Nuclear Charge ◽  
Heavy Elements ◽  
Mean Square ◽  
Heavy Nuclei ◽  
Particle Structure ◽  
Isotope Shifts ◽  
Nuclear Charge Distribution ◽  
The Mean

It is pointed out that optical isotope shifts between even-even isotopes in the medium-heavy elements show variations which are similar from one element to another, and that these variations are associated with particular values of N – Z , where N and Z refer to neutron and proton numbers respectively. Since the isotope shifts depend on differences in the mean square radii of the nuclear charge distribution, this correlation is evidence for some degree of a-particle structure in these nuclei. Further evidence from the energies of the first excited levels of the nuclei is also briefly considered.

Mu-Mesonic X-Rays and the Shape of the Nuclear Charge Distribution

1954 ◽  
Vol 94 (6) ◽  
pp. 1617-1629 ◽  
Author(s):  
David L. Hill ◽  
Kenneth W. Ford
Keyword(s):  
Charge Distribution ◽  
Nuclear Charge ◽  
X Rays ◽  
Nuclear Charge Distribution

141. Nuclear charge distribution

Physica ◽  
1956 ◽  
Vol 22 (6-12) ◽  
pp. 1195-1196 ◽  
Author(s):  
J. Fregeau ◽  
R.H. Helm ◽  
R. Hofstadter
Keyword(s):  
Charge Distribution ◽  
Nuclear Charge ◽  
Nuclear Charge Distribution

Nuclear-charge distribution forA=121from thermal-neutron-induced fission ofU235

1985 ◽  
Vol 31 (4) ◽  
pp. 1334-1339 ◽  
Author(s):  
Larry Robinson ◽  
Arthur C. Wahl ◽  
Tomasz M. Semkow ◽  
Andrew E. Norris
Keyword(s):  
Thermal Neutron ◽  
Charge Distribution ◽  
Nuclear Charge ◽  
Nuclear Charge Distribution ◽  
Induced Fission

A Model of Nuclear Shape Oscillations for g?Transitions and Electron Excitation

1956 ◽  
Vol 9 (4) ◽  
pp. 407 ◽  
Author(s):  
LJ Tassie
Keyword(s):  
Charge Distribution ◽  
Liquid Drop ◽  
Nuclear Charge ◽  
Electron Excitation ◽  
Nuclear Shape ◽  
Liquid Drop Model ◽  
Nuclear Charge Distribution ◽  
Shape Oscillations ◽  
Set Up ◽  
Uniform Charge Distribution

A model of nuclear shape oscillations is set up for an arbitrary nuclear charge distribution. For a uniform charge distribution the model reduces to the liquid drop model. The model is used to consider ?-transitions and electron excitation of nuclei. Explicit expressions are obtained for four charge distributions: (a) uniform, (b) Gaussian, (c) exponential, (d) uniform with Gaussian "edge". The theory predicts a relative angular distribution of electrons scattered by the 4�43 MeV level of 12C in agreement with the experimental results of Fregeau and Hofstadter (1955), but gives a scattered intensity seven times too large.

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