Spectroscopic studies on natural fluorapatites irradiated with 10 MeV electrons

被引：2

作者：

Banerjee, Rumu H. ^{[1
]}

Alexander, Rajath ^{[2
]}

Chaudhary, Nishant ^{[3
,4
]}

Sanyal, Sanjoy ^{[5
]}

Sengupta, Pranesh ^{[1
,4
]}

机构：

[1] Bhabha Atom Res Ctr, Mat Sci Div, Mumbai 400085, India

[2] Bhabha Atom Res Ctr, Glass & Adv Mat Div, Mumbai 40085, India

[3] Bhabha Atom Res Ctr, Accelerator & Pulse Power Div, Mumbai 400085, India

[4] Homi Bhabha Natl Inst Mumbai, Mumbai 400094, India

[5] Jadavpur Univ, Dept Geol Sci, Kolkata 700032, India

来源：

JOURNAL OF NUCLEAR MATERIALS | 2024年 / 599卷

关键词：

Electron irradiation; Fluorapatite; Raman spectroscopy; High level nuclear waste; Molten salt reactors; B -type carbonate; Small modular reactors; RAMAN-SPECTROSCOPY; ION IRRADIATION; CARBONATE; APATITE; DAMAGE; DIFFRACTION; EVOLUTION; CREATION;

D O I：

10.1016/j.jnucmat.2024.155199

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fluorapatites are one of the candidate matrices for hosting the nuclear waste from molten salt reactors. To assess their radiation stability and long-term performance, natural analogue study approach was undertaken. Naturally occurring fluorapatites containing with carbonate substitutions were irradiated with 10 MeV electron beam radiation for doses 20 MGy. X-ray diffraction, Raman and Fourier Transform infrared spectroscopy show no evidence of structural degradation or phosphate condensation. However, a change in the intensity of nu 3 Phosphate Raman bands was observed indicating that the phosphate tetrahedra is affected by the electron beam consistent with the displacement cross-section calculations for each constituent element. Overall, the study confirmed that fluorapatite possess good structural stability against electron radiation upto 20 MGy.

引用

页数：12

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