Accession Number : ADA311107

Title :   Consistency of Nuclear Radii of Even-Even Nuclei from Alpha-Decay Theory,

Corporate Author : CALIFORNIA UNIV LIVERMORE RADIATION LAB

Personal Author(s) : Perlman, I. ; Ypsilantis, T. J.

PDF Url : ADA311107

Report Date : FEB 1950

Pagination or Media Count : 17

Abstract : It is shown possible to obtain a consistent function for nuclear radius if the quantitative treatment of the alpha decay process is applied to even-even isotopes of the heavy elements. The nuclear radii so calculated for even even isotopes of emanation, radium, thoriurm, uranium, plutonium, and curium, conform with the expression r = 1.48 x 10(exp-13)(cu.rt.A) cm which defines the normal nuclear radii. The agreement is within 1 percent for the majority of the cases and there is reason to question the experimental data used in the calculations for at least part of those which do not show such close agreement. In cases of fine structure in alpha-decay of even-even nuclei, the radii calculated from the separate alpha-groups are compatible. The polonium isotopes and Em212 form a special group showing departures from normal nuclear radii explainable by consideration of shells in nuclear structure.

Descriptors :   *EVEN EVEN NUCLEI, *NUCLEAR STRUCTURE, ISOTOPES, URANIUM, RADIUM, PLUTONIUM, DECAY SCHEMES, NUCLEAR CROSS SECTIONS, ALPHA DECAY, CURIUM, POLONIUM.

Subject Categories : Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE