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α activity of natural tungsten isotopes

α activity of natural tungsten isotopes The indication for the α decay of 180 W with a half-life T 1 / 2 α = 1.1 - 0.4 + 0.8 ( stat ) ± 0 . 3 ( syst ) × 10 18 yr has been observed for the first time with the help of the superlow background 116 CdWO 4 crystal scintillators. In a conservative approach the lower limit on half-life of 180 W has been established as T 1 / 2 α ( 180 W ) >~ 0.7 × 10 18 yr at 90% C.L. In addition, new T 1 / 2 α bounds were set for α decay of 182 W , 183 W , 184 W , and 186 W at the level of 10 20 yr. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review C American Physical Society (APS)

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References (46)

Publisher
American Physical Society (APS)
Copyright
Copyright © 2003 The American Physical Society
ISSN
1089-490X
DOI
10.1103/PhysRevC.67.014310
Publisher site
See Article on Publisher Site

Abstract

The indication for the α decay of 180 W with a half-life T 1 / 2 α = 1.1 - 0.4 + 0.8 ( stat ) ± 0 . 3 ( syst ) × 10 18 yr has been observed for the first time with the help of the superlow background 116 CdWO 4 crystal scintillators. In a conservative approach the lower limit on half-life of 180 W has been established as T 1 / 2 α ( 180 W ) >~ 0.7 × 10 18 yr at 90% C.L. In addition, new T 1 / 2 α bounds were set for α decay of 182 W , 183 W , 184 W , and 186 W at the level of 10 20 yr.

Journal

Physical Review CAmerican Physical Society (APS)

Published: Jan 1, 2003

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