MANTRA: An Integral Reactor Physics Experiment to Infer the Neutron Capture Cross Sections of Actinides and Fission Products in Fast and Epithermal Spectra

Youinou, G.; Vondrasek, R.; Veselka, H.; Salvatores, M.; Paul, M.; Pardo, R. C.; Palmiotti, G.; Palchan, T.; Nusair, O.; Nimmagadda, J.; Nair, C.; Murray, Paul E.; Maddock, T.; Kondrashev, S.; Kondev, F. G.; Jones, W. V.; Imel, G.; Glass, C.; Fonnesbeck, J. E.; Berg, J.; Bauder, W.

doi:10.1016/j.nds.2014.08.047

Cited by 6 publications

(6 citation statements)

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“…The goal of the MANTRA (Measurements of Actinide Transmutation Rates at ATR) experiment [54,57,61,64] is to irradiate very pure actinide samples in the ATR and, after a given time, determine the amount of the different transmutation products. The determination of the nuclide densities before and after neutron irradiation allows inference of energy-integrated neutron cross sections.…”

Section: Mantra (2013-2014)mentioning

confidence: 99%

Massimo Salvatores: integral experiments and their use for the validation of nuclear data and the neutronic design of advanced nuclear systems

Palmiotti

Blaise

Mellier

2021

EPJ Nuclear Sci. Technol.

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Among the many domains of reactor physics on which Massimo Salvatores gave his considerable contributions, he was particularly passionate about integral experiments. In this paper, we make a review of selected experimental campaigns among the numerous ones he has promoted, conceived, designed, directed, or analyzed. They have been regrouped in a temporal sequence corresponding to the different periods of Massimo's career, which exceeded 50 years. When possible, for each of the experiments we provide a brief description, the goal for which it was conceived and carried out, and the practical impact on validation and design improvement. Finally, the conclusions offer thoughts and suggestions for the future of the integral experiments and a possible way of honoring the invaluable legacy that Massimo Salvatores has left to us.

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Section: Mantra (2013-2014)mentioning

confidence: 99%

Massimo Salvatores: integral experiments and their use for the validation of nuclear data and the neutronic design of advanced nuclear systems

Palmiotti

Blaise

Mellier

2021

EPJ Nuclear Sci. Technol.

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“…Separated isotope sample irradiation experiments have been already widely used in past adjustments [7]; Experiments with enhanced sensitivity to the actinide cross sections in the energy range ≤1 keV: k ∞ , reaction rates, void reactivity measurements performed at the PROTEUS facility in the frame of a High Conversion LWR validation program, [8]; Experiments with enhanced capture data sensitivity in the range from few hundred eV to 1 eV (MANTRA irradiation experiments at ATR with appropriate filters to tune the spectrum at the irradiation position, [9]); Experiments providing specific feedbacks on elastic and inelastic cross sections of structural materials (ASPIS-IRON88 neutron propagation experiment in Fe, [10]). …”

Section: A New Approach Using An Ad-hoc Enlarged Integral Data Basementioning

confidence: 99%

New approaches to provide feedback from nuclear and covariance data adjustment for effective improvement of evaluated nuclear data files

et al. 2017

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Abstract.A critical examination of the role of uncertainty assessment, target accuracies, role of integral experiment for validation and, consequently, of data adjustments methods is underway since several years at OECD-NEA, the objective being to provide criteria and practical approaches to use effectively the results of sensitivity analyses and cross section adjustments for feedback to evaluators and experimentalists in order to improve without ambiguities the knowledge of neutron cross sections, uncertainties, and correlations to be used in a wide range of applications and to meet new requirements and constraints for innovative reactor and fuel cycle system design. An approach will be described that expands as much as possible the use in the adjustment procedure of selected integral experiments that provide information on "elementary" phenomena, on separated individual physics effects related to specific isotopes or on specific energy ranges. An application to a large experimental data base has been performed and the results are discussed in the perspective of new evaluation projects like the CIELO initiative.

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“…neutron doses at fuel fabrication, decay heat in a repository, etc) [2]. However, the current data for minor actinides, especially in the fast-neutron region, are sparse and, in some cases, based only on models.…”

Section: Introductionmentioning

confidence: 99%

Developing laser ablation in an electron cyclotron resonance ion source for actinide detection with AMS

Bauder

Pardo

Kondev

et al. 2015

Nuclear Instruments and Methods in Physics Research Section B:

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A laser ablation material injection system has been developed at the ATLAS electron cyclotron resonance (ECR) ion source for use in accelerator mass spectrometry experiments. Beam production with laser ablation initially suffered from instabilities due to fluctuations in laser energy and cratering on the sample surface by the laser. However, these instabilities were rectified by applying feedback correction for the laser energy and rastering the laser across the sample surface. An initial experiment successfully produced and accelerated low intensity actinide beams with up to 1000 counts per second. With continued development, laser ablation shows promise as an alternative material injection scheme for ECR ion sources and may help substantially reduce cross talk in the source.

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MANTRA: An Integral Reactor Physics Experiment to Infer the Neutron Capture Cross Sections of Actinides and Fission Products in Fast and Epithermal Spectra

Cited by 6 publications

References 1 publication

Massimo Salvatores: integral experiments and their use for the validation of nuclear data and the neutronic design of advanced nuclear systems

Massimo Salvatores: integral experiments and their use for the validation of nuclear data and the neutronic design of advanced nuclear systems

New approaches to provide feedback from nuclear and covariance data adjustment for effective improvement of evaluated nuclear data files

Developing laser ablation in an electron cyclotron resonance ion source for actinide detection with AMS

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