Characterization of a neutron–beta counting system with beta-delayed neutron emitters

Agramunt, J.; Taín, J. L.; Gómez-Hornillos, M.B.; García, A. R.; Albiol, F.; Algora, A.; Caballero-Folch, R.; Calviño, F.; Cano‐Ott, D.; Cortés, G.; Domingo‐Pardo, C.; Eronen, T.; Gelletly, W.; Gorelov, D.; Gorlychev, V.; Hakala, H.; Jokinen, A.; Jordan, M. D.; Kankainen, A.; Kolhinen, V. S.; Küçük, Leyla; Martínez, T.; Mason, P.; Moore, I. D.; Penttilä, H.; Podolyák, Zs.; Pretel, C.; Reponen, M.; Riego, A.; Rissanen, J.; Rubio, B.; Saastamoinen, A.; Tarifeño-Saldivia, A.; Valencia, E.

doi:10.1016/j.nima.2015.10.082

Cited by 46 publications

(57 citation statements)

References 35 publications

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“…(1)) while in the other case we use the ratio of neutron-β correlations to the number of β particles (Eq. (2)), in both cases corrected by efficiencies [7] P n =ε…”

Section: Determination Of P N Valuesmentioning

confidence: 98%

“…A disadvantage of this approach is the need to determine the average β efficiencies for all decays (ε β ) and for decays to states above S n (ε β ). However for decays with a large Q βn = Q β − S n window both efficiencies will be very similar [7] and they will cancel out.…”

Section: Determination Of P N Valuesmentioning

confidence: 99%

“…The version of the neutron counter BELEN [7] used in this measurement consists of forty eight 3 He proportional tubes arranged in three concentric rings inside a large polyethylene block (see Fig. 1).…”

Section: Experimental Apparatusmentioning

confidence: 99%

“…The signals from the 3 He tubes are fed to four MPR-16-HV charge sensitive preamplifiers modules from Mesytec. The differential output signals from the MPR-16-HV are converted into single-ended with a home-made converter (designed at JYFL), and plugged to the SIS3316 [10] sampling ADC of the Gasi f ic data acquisition system where each channel is running in self-triggered mode registering time-stamp and signal amplitude for each detected neutron [7]. …”

Section: Experimental Apparatusmentioning

confidence: 99%

“…The value of the efficiency ratioε β /ε n = 0.816(33) was obtained from 95 Rb, a well know nucleus. This ratio shows little sensitivity to Q β and S n [7] thus can be applied to the remaining isotopes. Since the fit function depends on P n itself, we use an iterative procedure to obtain the value.…”

Section: Determination Of P N Valuesmentioning

confidence: 99%

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New accurate measurements of neutron emission probabilities for relevant fission products

et al. 2017

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Abstract. We have performed new accurate measurements of the beta-delayed neutron emission probability for ten isotopes of the elements Y, Sb, Te and I. These are fission products that either have a significant contribution to the fraction of delayed neutrons in reactors or are relatively close to the path of the astrophysical r process. The measurements were performed with isotopically pure radioactive beams using a constant and high efficiency neutron counter and a low noise beta detector. Preliminary results are presented for six of the isotopes and compared with previous measurements and theoretical calculations.

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“…(1)) while in the other case we use the ratio of neutron-β correlations to the number of β particles (Eq. (2)), in both cases corrected by efficiencies [7] P n =ε…”

Section: Determination Of P N Valuesmentioning

confidence: 98%

Section: Determination Of P N Valuesmentioning

confidence: 99%

Section: Experimental Apparatusmentioning

confidence: 99%

Section: Experimental Apparatusmentioning

confidence: 99%

Section: Determination Of P N Valuesmentioning

confidence: 99%

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New accurate measurements of neutron emission probabilities for relevant fission products

et al. 2017

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Improving Nuclear Data Input for r-Process Calculations Around A $$\sim $$ 80

Tolosa-Delgado

Agramunt

Ahn³

et al. 2019

Springer Proceedings in Physics

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Nuclear Data and Experiments for Astrophysics

Kankainen

Goriely

2022

The Euroschool on Exotic Beams, Vol. VI

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Nuclear astrophysics aims to understand the origin of elements and the role of nuclear processes in astrophysical events. Nuclear reactions and reaction rates depend strongly on nuclear properties and on the astrophysical environment. Nuclear inputs for stellar reaction rates involve a variety of nuclear properties, theoretical models, and experimental data. Experiments providing data for nuclear astrophysics range from stable ion beam direct measurements to radioactive beam experiments employing inverse kinematics or indirect methods. Many properties relevant for astrophysical calculations, such as nuclear masses and β-decays, have also been intensively studied. This contribution shortly introduces selected astrophysical processes, discusses the related nuclear data needs, and gives examples of recent experimental and theoretical efforts in the field. Origin of Elements and Nucleosynthesis Processes The Composition of the UniverseOur knowledge of the composition of the Universe in general, and of our Solar System in particular, results almost entirely from the analysis of electromagnetic spectra originating from the various observable sources in the Universe, i.e., the

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Characterization of a neutron–beta counting system with beta-delayed neutron emitters

Cited by 46 publications

References 35 publications

New accurate measurements of neutron emission probabilities for relevant fission products

New accurate measurements of neutron emission probabilities for relevant fission products

Improving Nuclear Data Input for r-Process Calculations Around A $$\sim $$ 80

Nuclear Data and Experiments for Astrophysics

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