Concepedia

Evidence for Primordial Superheavy Elements

Robert V. Gentry, Thomas A. Cahill, N. R. Fletcher, Henry C. Kaufmann, Larry Medsker, J.W. Nelson, Robert G. Flocchini

Physical Review Letters · 1976 · 155 citations · 9 references

DOI

Concepts

Abstract

Microscopic crystalline monazite inclusions showing giant halo formation in biotite mica have been analyzed by the method of proton-induced x-ray emission. The observed x-ray energy spectra are best explained by the presence of a number of superheavy elements.

References

9

Photon cross sections from 1 keV to 100 MeV for elements Z=1 to Z=100

Lellery Storm, Harvey I. Israel · Atomic Data and Nuclear Data Tables · 1970 · 1.5K citations

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X-ray analysis: Elemental trace analysis at the 10−12 g level

T. Johansson, Roland Akselsson, Sven Johansson · Nuclear Instruments and Methods · 1970 · 482 citations

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Elemental trace analysis of small samples by proton induced x-ray emission

Thomas B. Johansson, René E. Van Grieken, Jason Nelson et al. · Analytical Chemistry · 1975 · 195 citations

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Giant Radioactive Halos: Indicators of Unknown Radioactivity?

Robert V. Gentry · Science · 1970 · 48 citations

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Calculation of K, L, M and N binding energies and K X-rays for elements from Z = 96–120

Thomas A. Carlson, C. W. Nestor, F. B. Malik et al. · Nuclear Physics A · 1969 · 48 citations

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