Response of simulated An3+/An4+ radioactive soil vitrification under alpha-particle irradiation. (October 2021)

• Record Type: Journal Article
• Authors: Yan, Meng; Luo, Fen; Shu, Xiaoyan; Tang, Hexi; Chen, Shunzhang; Wei, Guilin; Xie, Yi; Wang, Lan; Lu, Xirui
• Is Part Of: Radiation physics and chemistry. Volume 187(2021)
• Publication Date: 2021-10
• Subjects: Ion irradiation -- Nuclear wastes -- Contaminated soil -- Vitrification; Radiation chemistry -- Periodicals; Radiometry -- Periodicals; Radiation -- Periodicals; Chimie sous rayonnement -- Périodiques; 539.2
• DOI: 10.1016/j.radphyschem.2021.109567
• Languages: English
• ISSNs: 0969-806X

Abstract

Abstract: As it is pivotal to study the self-irradiation of radioactive contaminated soil under alpha-particle in long term storage, the purpose of this paper is to research the irradiation behavior of 10–30 wt% of Nd2 O3 and CeO2 co-doped glass samples under 0.5 MeV He 2+ irradiation of high fluences from 1.0 × 10 14 to 1.0 × 10 17 ions/cm 2 at room temperature. The results of GIXRD show that the main phases keep amorphous after irradiation. Surface morphology is still smooth and enrichment phenomenon of all the referred elements exist rarely after irradiation by SEM-EDS. Meanwhile, the results of Vickers hardness value and leaching rate test show slightly change whereas the structure of the glass-samples under alpha-particle irradiation are stable. Therefore, this work can offer detailed information for the radiation tolerance of the materials. Graphical abstract: Image 1 Highlights: The samples shows reliable irradiation stabilizes under alpha-particle. The simulated nuclide sample shows homogeneous distribution of elements under alpha-particle. The phase analysis explains the evolution of microcosmic before and after irradiation. The materials possess considerable chemical stability after irradiation.