X-ray irradiation on the soda-lime container glass

Sheng, Jiawei; Kadono, Kohei; Utagawa, Yasushi; Yazawa, Tetsuo

doi:10.1016/s0969-8043(01)00238-x

Cited by 45 publications

(40 citation statements)

References 9 publications

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“…In soda-lime glasses, X-ray irradiation induces color centers: HC1 and HC2 centers. 21,22 Comparing the experimental results with simulated data, we observe that both the real and the imaginary parts of the refractive index of soda-lime glasses change upon irradiation in time intervals of a few minutes. After X-ray irradiation, the effects are partially reversible and the defects responsible for these modifications fade by recombination with electrons.…”

Section: IIImentioning

confidence: 93%

“…21,22 Comparando los resultados experimentales obtenidos con las curvas de SPR simuladas observamos que, tanto la parte real como la parte imaginaria delíndice de refracción de los vidrios sodicocálcicos, cambian cuando las muestras son irradiadas en intervalos de unos pocos minutos. Después de la irradiación, los defectos se recombinan con electrones y los efectos son parcialmente reversibles.…”

Section: VIIunclassified

“…HC2 defects are responsible of the absorption band around 412 nm, which is associated with a hole trapped in two or three non-bridging oxygens bonded to the same silicon. 22,202,203 In the SPR experiments a 632.8 nm laser was used, and thus the observed absorption at this wavelength is due to both HC1 and HC2 defects (see Figure 6.4).…”

Section: Study Of Soda-lime Glasses By Spr-xas Setup 145mentioning

confidence: 99%

“…17,186,187,192 In particular, X-ray irradiation can induce color centers in some glasses, 21,188 leading to the formation of these defects responsible of the glass darkening 193 and prompting a great interest since these color centers can be generated and bleached reversibly. 22 These and other non-visible defects generated with radiation have been investigated in a wide variety of glassy materials in the last decades, being responsible of the alteration of some physical properties of the glasses such as the optical absorption, 21,22 refractive index, 194 axial stress 195 or thermal expansion coefficient. 192 It is often necessary that glassy materials properly respond under radiation 17, 18 for a specific application.…”

Section: Introductionmentioning

confidence: 99%

“…17,186,192 Most of these studies devoted to analyze the effect of X-ray irradiation onto glasses, are carried out by irradiating the sample and analyzing later their optical properties. 21,22,188,193 However, in situ and real time studies are necessary for a deeper understanding of the process. Otherwise, processes associated with fast dynamics can be missed.…”

Section: Introductionmentioning

confidence: 99%

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Modified Au-Based Nanomaterials Studied by Surface Plasmon Resonance Spectroscopy

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A mis padres y hermanosA Raúl "La educación es el arma más poderosa para cambiar el mundo", Nelson Mandela, 1918-2013 "Experimental physics cannot do without instruments", Jean-Antoine Nollet, 1700-1770. AgradecimientosDurante el desarrollo de esta Tesis, muchas son las personas e instituciones involucradas a las que me gustaría dar las gracias. Sin su ayuda y apoyo, este trabajo no hubiera sido posible.En primer lugar quiero dar las gracias de manera muy especial al Dr. MiguelÁngel García y al Dr.Óscar Rodríguez por haberme dirigido la tesis. Un millón de gracias por creer en mí y haberme enseñado tanto, por motivarme, guiarme y ayudarme a crecer en el mundo de la investigación, por esos turnos en Spline, por los viajes, por esas charlas,... Ha sido una suerte contar con vosotros tanto en el trabajo como a nivel personal.Al Dr. Germán Castro. Gracias por aceptar la idea loca de montar un sistema de plasmones en la línea de absorción, por involucrarte como el que más, porque siempre estás disponible para hablar y enseñar ciencia. Por tu vitalidad y energía inagotable.Al Prof. José Francisco Fernández Lozano, por sus buenos consejos, su disposición, sus ideas y su dedicación. Gracias por introducirme en el mundo de la empresa e iniciarme en el campo de la cerámica.Al Prof. José Llopis por su gran ayuda en mis inicios y sus interesantes lecciones sobre plasmones. A la Dra. Noemí Carmona, por su buena disponiblidad yánimo. Gracias por acercarme a los vidrios históricos.Al Prof. Juan Rojo, a la Dra. Arantzazu Mascaraque, al Dr. MiguelÁngel González y todo el grupo de Ciencia de Superficies de la Universidad Complutense de Madrid, por hacerme siempre un hueco para medir en el AFM, por dejarme ir a hablaros de mi trabajo, por vuestras ideas, ayuda yánimo.También gustaría agradecer a la Dra. Mar García y a la Dra. Alicia de Andrés, del Instituto de Ciencia de Materiales de Madrid, por las medidas magnéticas (no presentadas en este trabajo) y por la discusión sobre las medidas Raman, respectivamente. A Charlie, porque no hay mejor compañía para trabajar en el laboratorio. A Eva, la nueva incorporación del grupo, que está más que integrada. A los que se han ido pero se dejan ver: Mara, Helen, Leti, Alberto A., Quique, Monikaka, Marta, MariCani,..., porque siempre es un buen momento estar con vosotr@s, dentro y fuera del trabajo. ¡Muchas gracias! De manera muy especial me gustaría dar las gracias a Esther y Cris, porque desde que empezamos la carrera siempre habéis estado ahí para apoyarme y tirar de mí cuando más lo necesitaba. Gracias Esther por coger el relevo y hacer de becaria por unos días. Por esos cotilleos, tan necesarios para empezar el día. Porque siempre puedo contar contigo y sabes sacar lo mejor de mí. Gracias Cris, porque siempre estás ahí para cualquier cosa.Porque sabes escuchar y animarme en los no mejores momentos. Porque vuestro esfuerzo y dedicación sólo merecen mi admiración. ¡Gracias chicas! A los del Sauco, por todos los buenos momentos vividos, las risas, los pre-extras, las carreras, porque con v...

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Section: IIImentioning

confidence: 93%

Section: VIIunclassified

Section: Study Of Soda-lime Glasses By Spr-xas Setup 145mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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In-Situ Study of Glasses Irradiated with X-rays by Surface Plasmon Resonance

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Effect of radiation bleaching in sodium-silicate glasses

2006

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Radiation defects in the lattice of sodium-silicate glass that arise under the effect of g-radiation were investigated by optical spectroscopy. Color centers of the hole type appeared in the glass at radiation doses in the 10 2 -10 3 Gy region.Sodium-silicate glass is widely used in optics, industry, as bioactive additives in medicine, ornaments, etc. [1 -3]. Addition of alloying dopants (Fe, Ti) [4] and exposure to high-energy radiation (x-ray, g radiation) [2] are used for effectively altering the optical properties of glass. A detailed study of the mechanisms of formation of the radiation defects that arise after irradiation and alter the optical properties due to the appearance of electron and hole color centers in the glass will allow using these materials as radiation-resistant coatings, structures, and seals [5]. For this reason, we investigated the effect of g radiation on the optical properties and radiation resistance of multicomponent sodium-silicate glass in the visible and ultraviolet regions of the spectrum. The trace element composition of the samples was (%): 0.0080 Pb, 0.0005 Cd, < 0.0020 Ni, < 0.0020 Co, 0.0006 Cu, 0.016 Zn, < 0.0020 Cr, 0.0002 Li, 0.0004 Rb, 0.0007 Cs, 0.0050 Sr. The chemical composition was (%): 73.80 SiO 2 , 0.18 TiO 2 , 1.90 Al 2 O 3 , 0.88 Fe 2 O 3 , 4.87 CaO, 3.93 MgO, 12.65 Na 2 O, 0.72 K 2 O, 0.03 P 2 O 5 , 0.04 MnO.In irradiation of the glass with a g-quanta beam of comparatively low energy (E g £ 10 MeV), Compton scattering plays the predominant role, and the other effects comprise only a few percent [6]. The multicomponent sodium-silicate glasses investigated were irradiated with g-quanta from a 60 Co source with energy of 1.25 MeV and rate of 1.3 Gy/min in the dose range of D = 10 2 -10 3 Gy.We know that the absorption spectrum of oxide glasses of the Na 2 O -CaO -MgO -SiO 2 system can be described as the sum of the absorption bands of: L sites (edge of the UV region), Fe 3+ (UV and visible regions), Fe 2+ (UV, visible, and IR regions), OH -(IR region).In studying the absorption spectra of unirradiated samples in the visible and UV regions (Fig. 1), two absorption bands in the 385 and 365 nm region were found. The first band was induced by Fe 3+ iron ions, which was confirmed by the published data [7,8], and the second was due to so-called L sites, which bind with structural fragments [4,9,10].The modifier ions in the glass lattice compensate for the negative charges on nonbridge oxygen ions [4]. L sites are excited during irradiation, and the oxygen ion in the O -state absorbs a g quantum and passes into the O 0 state with formation of L + sites:The presence of Na 2 O in the glass lattice shift the band of the radiation-induced absorption caused by excitation of O -states and conversion to O 0 from 620 nm (2 eV) to 465 nm (2.7 eV) [4]. As a consequence, the increase in absorption in the 450 -530 nm region to D = 1.3´10 2 Gy (see Fig. 1) and the subsequent decrease to saturation are due to nonbridge oxygen ions. and Resource Management, Far East Branch, Russian Acade...

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X-ray irradiation on the soda-lime container glass

Cited by 45 publications

References 9 publications

Modified Au-Based Nanomaterials Studied by Surface Plasmon Resonance Spectroscopy

Modified Au-Based Nanomaterials Studied by Surface Plasmon Resonance Spectroscopy

In-Situ Study of Glasses Irradiated with X-rays by Surface Plasmon Resonance

Effect of radiation bleaching in sodium-silicate glasses

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