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Open Access Publications from the University of California

β-particle energy-summing correction for β-delayed proton emission measurements

  • Author(s): Meisel, Z
  • del Santo, M
  • Crawford, HL
  • Cyburt, RH
  • Grinyer, GF
  • Langer, C
  • Montes, F
  • Schatz, H
  • Smith, K
  • et al.

© 2016 Elsevier B.V. A common approach to studying β-delayed proton emission is to measure the energy of the emitted proton and corresponding nuclear recoil in a double-sided silicon-strip detector (DSSD) after implanting the β-delayed proton-emitting (βp) nucleus. However, in order to extract the proton-decay energy, the measured energy must be corrected for the additional energy implanted in the DSSD by the β-particle emitted from the βp nucleus, an effect referred to here as β-summing. We present an approach to determine an accurate correction for β-summing. Our method relies on the determination of the mean implantation depth of the βp nucleus within the DSSD by analyzing the shape of the total (proton + recoil + β) decay energy distribution shape. We validate this approach with other mean implantation depth measurement techniques that take advantage of energy deposition within DSSDs upstream and downstream of the implantation DSSD.

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