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: Article

1 Citation (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

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Neutrons
neutrons
Neutron emission
neutron emission
decay
neutron decay
radioactive decay
neutron counters
Heavy ions
heavy ions
fragmentation
emitters
estimating
actuators
Ions
ions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

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

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 911, 11.12.2018, p. 79-86.

Research output: Article

Rasco, BC, Brewer, NT, Yokoyama, R, Grzywacz, R, Rykaczewski, KP, Tolosa-Delgado, A, Agramunt, J, Taín, JL, Algora, A, Hall, O, Griffin, C, Davinson, T, Phong, VH, Liu, J, Nishimura, S, Kiss, GG, 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, vol. 911, pp. 79-86. https://doi.org/10.1016/j.nima.2018.09.121
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. / The ORNL analysis technique for extracting [Formula presented]-delayed multi-neutron branching ratios with BRIKEN. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2018 ; Vol. 911. pp. 79-86.
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T1 - The ORNL analysis technique for extracting [Formula presented]-delayed multi-neutron branching ratios with BRIKEN

AU - Rasco, B. C.

AU - Brewer, N. T.

AU - Yokoyama, R.

AU - Grzywacz, R.

AU - Rykaczewski, K. P.

AU - Tolosa-Delgado, A.

AU - Agramunt, J.

AU - Taín, J. L.

AU - Algora, A.

AU - Hall, O.

AU - Griffin, C.

AU - Davinson, T.

AU - Phong, V. H.

AU - Liu, J.

AU - Nishimura, S.

AU - Kiss, G. G.

AU - Nepal, N.

AU - Estrade, A.

PY - 2018/12/11

Y1 - 2018/12/11

N2 - 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.

AB - 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.

KW - Multi-neutron emission data analysis

KW - Neutron detectors

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