Improved half-life determination and β-delayed γ -ray spectroscopy for 18Ne decay - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physical Review C Year : 2013

Improved half-life determination and β-delayed γ -ray spectroscopy for 18Ne decay

G.C. Ball
  • Function : Author
S. Ettenauer
  • Function : Author
P. Finlay
  • Function : Author
A.B. Garnsworthy
  • Function : Author
P.E. Garrett
  • Function : Author
K.L. Green
  • Function : Author
G. Hackman
  • Function : Author
J.R. Leslie
  • Function : Author
C.J. Pearson
  • Function : Author
E.T. Rand
  • Function : Author
C.S. Sumithrarachchi
  • Function : Author
C.E. Svensson
  • Function : Author
S. Triambak
  • Function : Author
S.J. Williams
  • Function : Author

Abstract

The half-life of the superallowed Fermi β + emitter 18Ne has been determined to ±0.07% precision by counting 1042 keV delayed γ rays that follow approximately 8% of all β decays. The deduced half-life, T1/2 = 1.6648 (11) s, includes a 0.7%correction that accounts for systematic losses associated with rate-dependent detector pulse pileup that was determined using a recently developed γ -ray photopeak-counting technique. This result is a factor of two times more precise than, and in excellent agreement with, a previous lower-statistics measurement that employed the same experimental setup. High-resolution β-delayed γ -ray spectroscopy results for the relative γ -ray intensities and β-decay branching ratios to excited states in the daughter 18F are also presented.

Dates and versions

in2p3-00811770 , version 1 (11-04-2013)

Identifiers

Cite

G.F. Grinyer, G.C. Ball, H. Bouzomita, S. Ettenauer, P. Finlay, et al.. Improved half-life determination and β-delayed γ -ray spectroscopy for 18Ne decay. Physical Review C, 2013, 87, pp.045502. ⟨10.1103/PhysRevC.87.045502⟩. ⟨in2p3-00811770⟩
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