The ORNL analysis technique for extracting [Formula presented]-delayed multi-neutron branching ratios with BRIKEN

B. C. Rasco, N. T. Brewer, R. Yokoyama, R. Grzywacz, K. P. Rykaczewski, A. Tolosa-Delgado, J. Agramunt, J. L. Taín, A. Algora, O. Hall, C. Griffin, T. Davinson, V. H. Phong, J. Liu, S. Nishimura, G. G. Kiss, N. Nepal, A. Estrade

Research output: Contribution to journalArticle

2 Citations (Scopus)

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 3He BRIKEN neutron counter. As an example, two analyses of the [Formula presented]-neutron emitter 77Cu based on different a priori assumptions are presented along with comparisons to literature values.

Original languageEnglish
Pages (from-to)79-86
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume911
DOIs
Publication statusPublished - Dec 11 2018

Keywords

  • Multi-neutron emission data analysis
  • Neutron detectors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Fingerprint Dive into the research topics of 'The ORNL analysis technique for extracting [Formula presented]-delayed multi-neutron branching ratios with BRIKEN'. Together they form a unique fingerprint.

  • Cite this

    Rasco, B. C., Brewer, N. T., Yokoyama, R., Grzywacz, R., Rykaczewski, K. P., Tolosa-Delgado, A., Agramunt, J., Taín, J. L., Algora, A., Hall, O., Griffin, C., Davinson, T., Phong, V. H., Liu, J., Nishimura, S., Kiss, G. G., Nepal, N., & Estrade, A. (2018). The ORNL analysis technique for extracting [Formula presented]-delayed multi-neutron branching ratios with BRIKEN. 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