Measurement of the half-life of {sup 198}Au in a nonmetal: High-precision measurement shows no host-material dependence

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.044320· OSTI ID:21419610

Goodwin, J R; Nica, N; Iacob, V E; Dibidad, A; Hardy, J C ^[1]

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1. Cyclotron Institute, Texas A and M University, College Station, Texas 77843 (United States)

We have measured the half-life of the {beta}{sup -} decay of {sup 198}Au to be 2.6948(9) d, with the nuclide sited in an insulating environment. Comparing this result with the half-life we measured previously with a metallic environment, we find the half-lives in both environments to be the same within 0.04%, thus contradicting a prediction that screening from a ''plasma'' of quasifree electrons in a metal increases the half-life by as much as 7%.

• OSTI ID: 21419610
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 82; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCURACY
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DAYS LIVING RADIOISOTOPES
DECAY
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FORECASTING
GOLD 198
GOLD ISOTOPES
HALF-LIFE
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEPTONS
METALS
NONMETALS
NUCLEAR DECAY
NUCLEI
ODD-ODD NUCLEI
PLASMA
RADIOISOTOPES
SCREENING