### Abstract

Many choices are available in order to evaluate large radioactive decay networks. There are many parameters that influence the calculated [Formula presented]-decay delayed single and multi-neutron emission branching fractions. We describe assumptions about the decay model, background, and other parameters and their influence on [Formula presented]-decay delayed multi-neutron emission analysis. An analysis technique, the ORNL BRIKEN analysis procedure, for determining [Formula presented]-delayed multi-neutron branching ratios in [Formula presented]-neutron precursors produced by means of heavy-ion fragmentation is presented. The technique is based on estimating the initial activities of zero, one, and two neutrons occurring in coincidence with an ion-implant and [Formula presented] trigger. The technique allows one to extract [Formula presented]-delayed multi-neutron decay branching ratios measured with the ^{3}He BRIKEN neutron counter. As an example, two analyses of the [Formula presented]-neutron emitter ^{77}Cu based on different a priori assumptions are presented along with comparisons to literature values.

Original language | English |
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Pages (from-to) | 79-86 |

Number of pages | 8 |

Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |

Volume | 911 |

DOIs | |

Publication status | Published - Dec 11 2018 |

### Keywords

- Multi-neutron emission data analysis
- Neutron detectors

### ASJC Scopus subject areas

- Nuclear and High Energy Physics
- Instrumentation

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## Cite this

*Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment*,

*911*, 79-86. https://doi.org/10.1016/j.nima.2018.09.121