Cross Section of Tritium Production in Structural Materials of Accelerator-Driven Facilities

Titarenko, Yu. E.; Chauzova, M.V.; Pavlov, K. V.; Malinovsky, S. V.; Titarenko, A. Yu.; Rogov, V. I.; Batyaev, V. F.

doi:10.1134/s1063778821100392

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…The reactions under scrutiny are those involving the most important progenitors of Li, Be, and B isotopes and ghosts (see below), that is (i) B, C, N, O, Ne, Mg, and Si, as highlighted in Génolini et al (2018); (ii) specific production of some light isotopes from Li and Be progenitors (for completeness of the Z ≤ 6 progenitors), and (iii) Fe which is the main novelty of this study. Indeed, new relevant fragmentation data from 56 Fe (Napolitani et al 2004;Herbach et al 2006;Villagrasa-Canton et al 2007;Titarenko et al 2008Titarenko et al , 2011 were published seemingly after the galprop database was last updated. Finally, our cross-checks lead us to replace some of the Read & Viola (1984) compiled data (used in the galprop file) by the original ones, and a few were even removed (because they corresponded to cumulative cross sections, i.e.…”

Section: Nuclear Datamentioning

confidence: 99%

The importance of Fe fragmentation for LiBeB analyses

Maurin

Bueno

Génolini

et al. 2022

A&A

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Context. High-precision data from AMS-02 on Li, Be, and B provide the best constraints on Galactic cosmic-ray transport parameters. Aims. We re-evaluate the impact of Fe fragmentation on the Li, Be, and B modelling. We discuss the consequences on the transport parameter determination and reassess whether a primary source of Li is needed to match AMS-02 data. Methods. We renormalised several cross-section parametrisations to existing data for the most important reactions producing Li, Be, and B. We used the usine code with these new cross-section sets to re-analyse Li/C, Be/C, and B/C AMS-02 data. Results. We built three equally plausible cross-section sets. Compared to the initial cross-section sets, they lead to an average enhanced production of Li (∼ 20 − 50%) and Be (∼ 5 − 15%), while leaving the B flux mostly unchanged. In particular, Fe fragmentation is found to contribute to up to 10% of the Li and Be fluxes. Used in the combined analysis of AMS-02 Li/C, Be/C, and B/C data, the fit is significantly improved, with an enhanced diffusion coefficient (∼ 20%). The three updated cross-section sets are found to either slightly undershoot or overshoot the Li/C and B/C ratios: this strongly disfavours evidence for a primary source of Li in cosmic rays. We stress that isotopic cosmic-ray ratios of Li (and to a lesser extent Be), soon to be released by AMS-02, are also impacted by the use of these updated sets. Conclusions. Almost no nuclear data exist for the production of Li and B isotopes from Ne, Mg, Si, and Fe, whereas these reactions are estimated to account for ∼ 20% of the total production. New nuclear measurements would be appreciated and help to better exploit the high-precision AMS-02 cosmic-ray data.

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Section: Nuclear Datamentioning

confidence: 99%

The importance of Fe fragmentation for LiBeB analyses

Maurin

Bueno

Génolini

et al. 2022

A&A

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Comprehensive estimation of nuclide production cross sections using a phenomenological approach

Iwamoto,

Meigo,

Sugihara

2024

Phys. Rev. C

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Study of Radiation Damage Processes Caused by Hydrogen Embrittlement in Lithium Ceramics under High-Temperature Irradiation

et al. 2022

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The aim of this work is to study the hydrogenation processes in lithium-containing ceramics under high-temperature irradiation. Irradiation was carried out with protons with an energy of 1 MeV and fluences of 1015–1017 ion/cm2 at irradiation temperatures of 300–1000 K. The choice of irradiation conditions is due to the possibility of simulation of the radiation damage accumulation processes in the near-surface layer of Li2TiO3 ceramics, as well as establishing the dependences of changes in structural parameters during temperature heating of samples during irradiation. It has been established that at irradiation fluences of 1015–1016 ion/cm2, the formation of dislocation defects is observed, the density of which has a pronounced dependence on the irradiation temperature. At irradiation fluence above 5 × 1016 ion/cm2, an increase in the crystal structure deformation is observed, due to swelling processes as a result of implanted hydrogen accumulation in the near-surface layer structure. At the same time, an increase in the irradiation temperature leads to a decrease in the swelling value, which is due to the accelerated migration of implanted hydrogen in the near-surface layer and its release through the existing pores. Results of mechanical tests showed that the swelling of the crystal structure and its deformation leads to embrittlement and a partial decrease in the strength of the near-surface layer. The obtained research results will further allow us to evaluate the resistance of lithium ceramics to the processes of hydrogenation and destruction as a result of the formation of gas-filled cavities in the structure of the near-surface layer.

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Cross Section of Tritium Production in Structural Materials of Accelerator-Driven Facilities

Cited by 3 publications

References 13 publications

The importance of Fe fragmentation for LiBeB analyses

The importance of Fe fragmentation for LiBeB analyses

Comprehensive estimation of nuclide production cross sections using a phenomenological approach

Study of Radiation Damage Processes Caused by Hydrogen Embrittlement in Lithium Ceramics under High-Temperature Irradiation

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