Development of radioactive beams at ALTO: Part 2. Influence of the UCx target microstructure on the release properties of fission products

Julien Guillot; Brigitte Roussière; Sandrine Tusseau-Nenez; Denis Grebenkov; Nicole Barré-Boscher; Elie Borg; Julien Martin

doi:10.1016/j.nimb.2018.11.039

Development of radioactive beams at ALTO: Part 2. Influence of the UC_x target microstructure on the release properties of fission products

Julien Guillot
, Brigitte Roussière
, Sandrine Tusseau-Nenez
, Denis Grebenkov
, Nicole Barré-Boscher
, Elie Borg
, Julien Martin

Centre national de la recherche scientifique
Université Paris-Saclay

Research output: Contribution to journal › Article › peer-review

Abstract

Producing intense radioactive beams, in particular those consisting of short-lived isotopes requires the control of the release efficiency. The released fractions of 11 elements were measured on 14 samples that were characterized by various physicochemical analyses in a correlated paper (Part 1). A multivariate statistical approach, using the principal component analysis, was performed to highlight the impact of the microstructure on the release properties. Samples that best release fission products consist of grains and aggregates with small size and display a high porosity distributed on small diameter pores. They were obtained applying a mixing of ground uranium dioxide and carbon nanotubes powders leading to homogeneous uranium carbide samples with a porous nanostructure. A modelling under on-line ALTO conditions was carried out using the FLUKA code to compare the yields released by an optimized and a conventional target.

Original language	English
Pages (from-to)	1-10
Number of pages	10
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	440
DOIs	https://doi.org/10.1016/j.nimb.2018.11.039
Publication status	Published - 1 Feb 2019
Externally published	Yes

Keywords

Fluka
PCA
Radioactive beams
Release efficiency
UC target
γ-Spectroscopy

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10.1016/j.nimb.2018.11.039

Cite this

Guillot, J., Roussière, B., Tusseau-Nenez, S., Grebenkov, D., Barré-Boscher, N., Borg, E., & Martin, J. (2019). Development of radioactive beams at ALTO: Part 2. Influence of the UC_x target microstructure on the release properties of fission products. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 440, 1-10. https://doi.org/10.1016/j.nimb.2018.11.039

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title = "Development of radioactive beams at ALTO: Part 2. Influence of the UCx target microstructure on the release properties of fission products",

abstract = "Producing intense radioactive beams, in particular those consisting of short-lived isotopes requires the control of the release efficiency. The released fractions of 11 elements were measured on 14 samples that were characterized by various physicochemical analyses in a correlated paper (Part 1). A multivariate statistical approach, using the principal component analysis, was performed to highlight the impact of the microstructure on the release properties. Samples that best release fission products consist of grains and aggregates with small size and display a high porosity distributed on small diameter pores. They were obtained applying a mixing of ground uranium dioxide and carbon nanotubes powders leading to homogeneous uranium carbide samples with a porous nanostructure. A modelling under on-line ALTO conditions was carried out using the FLUKA code to compare the yields released by an optimized and a conventional target.",

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author = "Julien Guillot and Brigitte Roussi{\`e}re and Sandrine Tusseau-Nenez and Denis Grebenkov and Nicole Barr{\'e}-Boscher and Elie Borg and Julien Martin",

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doi = "10.1016/j.nimb.2018.11.039",

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Guillot, J, Roussière, B, Tusseau-Nenez, S, Grebenkov, D, Barré-Boscher, N, Borg, E & Martin, J 2019, 'Development of radioactive beams at ALTO: Part 2. Influence of the UC_x target microstructure on the release properties of fission products', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 440, pp. 1-10. https://doi.org/10.1016/j.nimb.2018.11.039

Development of radioactive beams at ALTO: Part 2. Influence of the UC_x target microstructure on the release properties of fission products. / Guillot, Julien; Roussière, Brigitte; Tusseau-Nenez, Sandrine et al.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 440, 01.02.2019, p. 1-10.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Development of radioactive beams at ALTO

T2 - Part 2. Influence of the UCx target microstructure on the release properties of fission products

AU - Guillot, Julien

AU - Roussière, Brigitte

AU - Tusseau-Nenez, Sandrine

AU - Grebenkov, Denis

AU - Barré-Boscher, Nicole

AU - Borg, Elie

AU - Martin, Julien

PY - 2019/2/1

Y1 - 2019/2/1

N2 - Producing intense radioactive beams, in particular those consisting of short-lived isotopes requires the control of the release efficiency. The released fractions of 11 elements were measured on 14 samples that were characterized by various physicochemical analyses in a correlated paper (Part 1). A multivariate statistical approach, using the principal component analysis, was performed to highlight the impact of the microstructure on the release properties. Samples that best release fission products consist of grains and aggregates with small size and display a high porosity distributed on small diameter pores. They were obtained applying a mixing of ground uranium dioxide and carbon nanotubes powders leading to homogeneous uranium carbide samples with a porous nanostructure. A modelling under on-line ALTO conditions was carried out using the FLUKA code to compare the yields released by an optimized and a conventional target.

AB - Producing intense radioactive beams, in particular those consisting of short-lived isotopes requires the control of the release efficiency. The released fractions of 11 elements were measured on 14 samples that were characterized by various physicochemical analyses in a correlated paper (Part 1). A multivariate statistical approach, using the principal component analysis, was performed to highlight the impact of the microstructure on the release properties. Samples that best release fission products consist of grains and aggregates with small size and display a high porosity distributed on small diameter pores. They were obtained applying a mixing of ground uranium dioxide and carbon nanotubes powders leading to homogeneous uranium carbide samples with a porous nanostructure. A modelling under on-line ALTO conditions was carried out using the FLUKA code to compare the yields released by an optimized and a conventional target.

KW - Fluka

KW - PCA

KW - Radioactive beams

KW - Release efficiency

KW - UC target

KW - γ-Spectroscopy

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Guillot J, Roussière B, Tusseau-Nenez S, Grebenkov D, Barré-Boscher N, Borg E et al. Development of radioactive beams at ALTO: Part 2. Influence of the UC_x target microstructure on the release properties of fission products. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2019 Feb 1;440:1-10. doi: 10.1016/j.nimb.2018.11.039

Development of radioactive beams at ALTO: Part 2. Influence of the UC_x target microstructure on the release properties of fission products

Abstract

Keywords

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