Spectroscopic investigation of gamma radiation-induced coloration in silicate glass for nuclear applications

Tsai, Hsu‐Sheng; Chao, Der-Sheng; Wu, Ya-Hsuan; He, Yuting; Chueh, Yu‐Lun; Liang, Jenq–Horng

doi:10.1016/j.jnucmat.2014.07.002

Cited by 8 publications

(9 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The influence of ionizing radiations (such as X-rays, γ-rays, heavy ions beams, synchrotron and UV irradiation, etc.) on structural and other properties of glasses was studied in [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. In [35] structural changes in silica glass after electron irradiation with electrons energy 2.5MeV was studied by methods of Raman spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Structural Changes in Silica Glass under the Action of Electron Beam Irradiation: The Effect of Irradiation Dose

et al. 2021

View full text Add to dashboard Cite

Structural changes in silica glass, produced by electron irradiation, with electrons energies of 50 keV and doses of 5–80 mC/cm2 were studied by Raman spectroscopy in frequency ranges of 300–550 and of 700–1500 cm–1. It is shown that for irradiation doses less than 5 mC/cm2 the decrease of siloxane rings concentration in glass takes place. The further increase of dose results in the increase of siloxane rings concentration in glass network after irrsdiation. And for doses of more than 40 mC/cm2 the whole destruction of glass structure and its structural units takes place. The obtained results for silica glass were compared with similar results for crystalline quartz.

show abstract

Section: Introductionmentioning

confidence: 99%

Structural Changes in Silica Glass under the Action of Electron Beam Irradiation: The Effect of Irradiation Dose

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Densities recorded (average of five measurements) for pristine and 5 MGy gamma irradiated doped NaBaBSi and LiNaBSi glasses are presented in Table 6.9 and Table 6.10, respectively. There is another signal present at g~1.993 corresponding to a magnetic field of ~344.07 mT which can be attributed to ET centres [28,57,177]. By looking at the line shape for the first derivative spectrum for irradiated SON68 glass it can be inferred that the signal is due to BOHCs with maximum contribution to the overall signal along with the other underlying signals [28,173,185].…”

Section: Results -Density Measurementsmentioning

confidence: 98%

“…There are no additional signals identified in the secondderivative EPR spectra for LiNaBSi glass. The two signals at g~1.997 and g~1.996 at 0.5 and 5 MGy, respectively, can be attributed to ET centres [176,177]. unannealed irradiated glass specimen.…”

Section: Glass Colorationmentioning

confidence: 87%

“…Different mechanisms through which they can form in glasses upon irradiation or how/whether they can have deteriorating effects on the performance in terms of durability and their thermal stability is dicussed in detail in the following section [28,32,165,173,174,[176][177][178].…”

Section: Structural Defects In Borosilicate Glasses Due To Irradiationmentioning

confidence: 99%

“…Wesełucha-Birczyǹska et al [268] investigated natural halite and reported a plasmon band at 629 nm for navy blue single crystals and at 621 nm for blue samples (see ref [268] for detailed study). Tsai et al [177] investigated silicate glasses irradiated with gamma radiation and found an EPR signal at g~2.01 and an absorption band in the range 360-540 nm. Jiang et al [275] investigated electron irradiated sodium silicate glass and used electron energy loss spectroscopy (EELS)…”

Section: Radiation-induced Defects At Room Temperaturementioning

confidence: 99%

See 2 more Smart Citations

Radiation damage effects on the structure and properties of radioactive waste glasses

Rautiyal¹

View full text Add to dashboard Cite

The performance assessment of glass matrices currently being used in different nuclear energy producing countries to contain and immobilise high-level waste (HLW) waste is crucial for safe and economic disposal. During the first ~500 years of geological disposal fission products will me the main source or radiation and they decay by beta-gamma emission. We studied different borosilicate glasses used in different countries to immobilise HLW, such as Indian glass (NaBaBSi), UK glasses (LiNaBSi), also called MW- Mixture Windscale, UK-CaZn a modified version of MW, French glass (SON68) and a glass proposed by six collaborating nations, called the International Simple Glass (ISG), to see whether / how irradiation defects are dependent on glass composition. Glasses were externally irradiated using a 60Co gamma source to study the effects of beta-gamma radiation (a gamma emitter loses it energy to atomic electrons they then further interact via coulombic interactions); and by He2+ ion implantation to study the effects of alpha particles. A multi-spectroscopic approach was used to characterise glass specimens before and after irradiation. NaBaBSi and LiNaBSi glasses were irradiated using 60Co gamma photons and we found boron-oxygen hole centres (BOHC), electrons trapped at alkali cations or ET centres and peroxy-radicals (PORs) as common defect in these glasses. In addition, E- or polaron centres which may be related to formation of elemental / metallic sodium colloids formed in NaBaBSi glass. Time-dependent thermal annealing of the irradiated glasses revealed that POR’s are the most thermally stable of the defect centres. BOHC and ET centres were common to SON68, ISG and CaZn glasses. In NaBaBSi, LiNaBSi and SON68 glasses loaded with non-active simulated HLW no sharp and intense signals indicative of radiation-induced paramagnetic defect centres was observed. In the study of NaBaBSi and LiNaBSi glasses doped with 0.19. 0.99, and 4.76 mol% Fe2O3 prepared in an oxidising melting environment, electron paramagnetic resonance (EPR) spectroscopy showed that gamma irradiation induced sharp and intense signals exist for only the 0 and 0.19 mol% Fe2O3 doped samples and disappeared for samples containing higher molar concentrations of Fe2O3. It is postulated that, upon gamma irradiation, in LiNaBSi glass Fe2+ is oxidised to Fe3+ by the capture of holes, whereas in NaBaBSi glass Fe3+ is reduced to Fe2+ due to capture of electrons. Further research is needed to understand the reasons behind these different behaviours.

show abstract

Fabrication of ZrO2 Doped (30-x)BaO-30TiO2-40SiO2-xZrO2 (0 ≤ x ≤ 6) Glasses: Enhanced Physical, Optical and Radiation Shielding Characteristics for Optoelectronics Applications

Mishra,

Singh,

Avinashi

et al. 2024

J Inorg Organomet Polym

View full text Add to dashboard Cite

Spectroscopic investigation of gamma radiation-induced coloration in silicate glass for nuclear applications

Cited by 8 publications

References 21 publications

Structural Changes in Silica Glass under the Action of Electron Beam Irradiation: The Effect of Irradiation Dose

Structural Changes in Silica Glass under the Action of Electron Beam Irradiation: The Effect of Irradiation Dose

Radiation damage effects on the structure and properties of radioactive waste glasses

Fabrication of ZrO2 Doped (30-x)BaO-30TiO2-40SiO2-xZrO2 (0 ≤ x ≤ 6) Glasses: Enhanced Physical, Optical and Radiation Shielding Characteristics for Optoelectronics Applications

Contact Info

Product

Resources

About