α-decay chain of the short-lived isotope Pa220 established using a digital pulse processing technique

α-decay chain of the short-lived isotope Pa220 established using a digital pulse processing... The decay properties of the short-lived isotope Pa220 were re-investigated via the reaction Ar40+Re187 at the gas-filled recoil separator Spectrometer for Heavy Atoms and Nuclear Structure. The digital pulse processing technique was applied to resolve the evaporation residues–α (ER-α) pileup signals in the decay of Pa220. The α-decay chain of Pa220 leading to the well-known Ac216 isotope was established for the first time. The α energy and half-life were measured to be Eα=9.520(16)MeV and T1/2=0.90(13)μs, respectively. The spin parity of the ground state of Pa220 was assigned to be 1−, based on the reduced α-decay width. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review C American Physical Society (APS)

α-decay chain of the short-lived isotope Pa220 established using a digital pulse processing technique

Abstract

The decay properties of the short-lived isotope Pa220 were re-investigated via the reaction Ar40+Re187 at the gas-filled recoil separator Spectrometer for Heavy Atoms and Nuclear Structure. The digital pulse processing technique was applied to resolve the evaporation residues–α (ER-α) pileup signals in the decay of Pa220. The α-decay chain of Pa220 leading to the well-known Ac216 isotope was established for the first time. The α energy and half-life were measured to be Eα=9.520(16)MeV and T1/2=0.90(13)μs, respectively. The spin parity of the ground state of Pa220 was assigned to be 1−, based on the reduced α-decay width.
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Publisher
The American Physical Society
Copyright
Copyright © ©2017 American Physical Society
ISSN
0556-2813
eISSN
1089-490X
D.O.I.
10.1103/PhysRevC.96.014324
Publisher site
See Article on Publisher Site

Abstract

The decay properties of the short-lived isotope Pa220 were re-investigated via the reaction Ar40+Re187 at the gas-filled recoil separator Spectrometer for Heavy Atoms and Nuclear Structure. The digital pulse processing technique was applied to resolve the evaporation residues–α (ER-α) pileup signals in the decay of Pa220. The α-decay chain of Pa220 leading to the well-known Ac216 isotope was established for the first time. The α energy and half-life were measured to be Eα=9.520(16)MeV and T1/2=0.90(13)μs, respectively. The spin parity of the ground state of Pa220 was assigned to be 1−, based on the reduced α-decay width.

Journal

Physical Review CAmerican Physical Society (APS)

Published: Jul 31, 2017

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