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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

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

Huang, T. H.; Zhang, W. Q.; Sun, M. D.; Liu, Z.; Wang, J. G.; Liu, X. Y.; Ding, B.; Gan, Z. G.; Ma, L.; Yang, H. B.; Zhang, Z. Y.; Yu, L.; Jiang, J.; Wang, K. L.; Wang, Y. S.; Liu, M. L.; Li, Z. H.; Li, J.; Wang, X.; Lu, H. Y.; Lin, C. J.; Sun, L. J.; Ma, N. R.; Ren, Z. Z.; Zhang, F. S.; Zou, W.; Zhou, X. H.; Xu, H. S.; Xiao, G. Q.
Physical Review C , Volume 96 (1) – Jul 31, 2017

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
American Physical Society (APS)
Copyright
Copyright © ©2017 American Physical Society
ISSN
0556-2813
eISSN
1089-490X
DOI
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 C – American Physical Society (APS)

Published: Jul 31, 2017

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