| Autor: |
C.I. Browne, Albert Ghiorso, S. Fried, Glenn T. Seaborg, Martin H. Studier, Stanley G. Thompson, W. M. Manning, R. W. Spence, G. H. Higgins, David C. Hess, H.L. Smith, Herbert Diamond, P. R. Fields, C. S. Stevens, J. F. Mech, Mark G. Inghram, G. L. Pyle |
| Rok vydání: |
1960 |
| Předmět: |
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| Zdroj: |
Physical Review. 119:2000-2004 |
| ISSN: |
0031-899X |
| Popis: |
The November 1, 1952 thermonuclear explosion ("Mike") produced all of the uranium isotopes ${\mathrm{U}}^{239}$, ${\mathrm{U}}^{240}$,...${\mathrm{U}}^{255}$ through multiple neutron capture by ${\mathrm{U}}^{238}$. The long-lived products of successive ${\ensuremath{\beta}}^{\ensuremath{-}}$ decays from these isotopes were measured mass spectrometrically and radiometrically. The logarithms of the abundances decline smoothly with increasing mass number; the even-mass abundances slightly exceed the geometric mean of adjacent odd-mass abundances. Some nuclear properties of neutron-rich heavy nuclides, not subject to ordinary investigation are inferred. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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