Radiation-optical characteristics of quartz glass and sapphire

Исламов, А. Х.; Ибрагимова, Э. М.; Nuritdinov, I.

doi:10.1016/j.jnucmat.2007.01.047

Cited by 30 publications

(9 citation statements)

References 14 publications

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“…The radioluminescence from irradiated sapphire presents several peaks in UV (λ = 280 nm24, 325 nm17, 420 nm1718222324), one major in the near-IR (λ = 697 nm171824) and some smaller peaks in the same region24. In the case of ZnSe, the emitted spectra are present for λ = 473 nm27.…”

Section: Discussionmentioning

confidence: 99%

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Optical and THz investigations of mid-IR materials exposed to alpha particle irradiation

Sporea

Mihai

Sporea

et al. 2017

Sci Rep

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The paper is the first comprehensive study on alpha particle irradiation effects on four mid-IR materials: CaF2, BaF2, Al2O3 (sapphire) and ZnSe. The measurements of the optical spectral transmittance, spectral diffuse reflectance, radioluminescent emission, terahertz (THz) spectral response, transmittance, absorbance, refractive index, real and imaginary parts of the dielectric constant and THz imaging are used as complementary investigations to evaluate these effects. The simulations were run to estimate: (i) the penetration depth, (ii) the scattering of alpha particle beam, (iii) the amount of material affected by this interaction, and (iv) the number of vacancies produced by the radiation exposure for each type of material. The simulation results are compared to the off-line measurement outcomes. The delay and spectral composition change of the reflected THz signal highlight the modification induced in the tested materials by the irradiation process.

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Section: Discussionmentioning

confidence: 99%

“…- investigated in the visible-near IR (200 nm to 900 nm), in low OH content KUVI-S and high OH content KU-1 quartz glasses, and sapphire as they were subjected to electron beam, neutron, gamma-rays1617181920;…”

mentioning

confidence: 99%

Optical and THz investigations of mid-IR materials exposed to alpha particle irradiation

Sporea

Mihai

Sporea

et al. 2017

Sci Rep

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“…Microscopic analysis of the target surface shows that the damage of the surface by the laser radiation occurs in the form of craters with molten edges, inside of which there are small cavities. The reason for the formation of these microcraters is the presence of impurity inclusions and optical inhomogeneities, which result in effective adsorption of laser energy [20]. This model gives the value of the threshold intensity q c = 7 × 10 9 W/cm 2 for the glass type GLS-1.…”

Section: Resultsmentioning

confidence: 97%

Effect of Optical Radiation on the Properties of Gamma Radiated Silicate Glass

Khaydarov¹,

Beisinbaeva²,

Berdiyorov³

et al. 2014

JMP

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We study the effect of intense laser radiation on the surface of silicate glass prior irradiated by gamma radiation. Experimental results show that the gamma radiation with dose 5 × 10 4 R leads to the degradation of the surface resistance of this optical dielectric to electromagnetic radiation. Depending on the dose of the radiation the laser radiation can result in either surface erosion or its pronounced cracking. It is also found that the efficiency of the degradation process is determined not only by the radiation dose, but also by the presence of different impurities in the glass.

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“…This material is chemically inert and insoluble in most solvents and acids. This optical material exhibits no measureable optical absorption under intense gamma radiation exposure up to doses of 10 8 Gy (Islamov et al 2007), while neutron fluence up to 10 20 n/cm 2 induced a number of absorption bands only at ≤ 450 nm. This radiation-resistance figure should provide years of service before the onset of any noticeable optical absorption features.…”

Section: Optical Windowsmentioning

confidence: 97%