Radiation-induced luminescence properties of Sn-doped hafnium aluminosilicate glass ceramics prepared by using a xenon image furnace

نویسندگان

چکیده

Abstract In this study, Sn-doped 10HfO 2 –10Al O 3 –80SiO glasses were prepared using a xenon imaging furnace and their physical, optical, scintillation properties investigated. At the composition ratio, specimens did not completely vitrify, they crystallized that contained nanocrystals of c-HfO . Raman spectra show absorption bands due to Si–O–Hf bonds, band clearly indicated an effective molecular mingling SiO HfO components in glass. Moreover, energy dispersive X-ray spectroscopy maps suggested elemental distribution glass specimen is heterogeneous. terms optical glass, all showed emission Sn 2+ , tendency increase photoluminescence quantum yield with increasing concentration. The estimated luminescence from pulse height spectrum measurements under alpha irradiation was ∼2500 ph MeV −1 approximately 35% GS-20 scintillator counterpart.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Luminescence Properties of Oxyfluoride Glass and Glass Ceramic Doped with Y3 + Ions

 Oxyfluoride glass ceramics containing CaF2nano-crystals doped with Y3+ ions were prepared by one-step crystallization of SiO2- Al2O3- CaO- CaF2 glasses at different temperatures. X- ray diffraction (XRD) results have revealed that CaF2 was the only precipitated crystalline phase in glass ceramic samples. According to the XRD results, a glass ceramic was selected as the best sample in order to ...

متن کامل

Upconversion properties of a transparent Er3þ–Yb3þ co-doped LaF3–SiO2 glass-ceramics prepared by sol–gel method

Transparent 0.1ErF3–0.1YbF3–5LaF3–94.8SiO2 (mol%) glass-ceramics was prepared by sol–gel method. Efficient upconversion emissions at 379, 407, 450, 490, 520, 540 and 660 nm were observed under 973 nm excitation. The signal at 379 nm is only 4.5 times weaker than the signal at 520 nm, that is readily visible by the naked eyes even with a pump power of 27 mW, indicating that this sample is a very...

متن کامل

Biocompatibility and Physical Properties of Doped Bioactive Glass Ceramics

Biocompatibility of a new bioactive glass composition for medical applications was evaluated with the addition of fluorides, such as CaF2 and MgF2, for the substitution of Na2O in the conventional bioactive glass composition (SiO2-CaO-Na2O-P2O5). Also, the physical properties of these glass ceramics were investigated. When B2O3 was added as a Na2O substitution, the thermal expansion coefficient...

متن کامل

Microstructure, mechanical and thermal properties of chalcogenide glasses and glass-ceramics based on Se-As-Ge system nucleated by Sn

In particular, chalcogenide glasses and glass-ceramics are new materials that exhibit good transparency in infrared region (0.8-12µm). We can overcome the main weakness of these glasses by improving the hardness through controlling crystallization. In this paper, we report results of a study on chalcogenide glasses in the ternary system of As-Se-Ge with nominal composition of Snx (Se...

متن کامل

Crystallization, Microstructure, and Viscosity Evolutions in Lithium Aluminosilicate Glass-Ceramics

Lithium aluminosilicate glass-ceramics have found widespread commercial success in areas such as consumer products, telescope mirrors, fireplace windows, etc. However, there is still much to learn regarding the fundamental mechanisms of crystallization, especially related to the evolution of viscosity as a function of the crystallization (ceramming) process. In this study, the impact of phase a...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Japanese Journal of Applied Physics

سال: 2022

ISSN: ['0021-4922', '1347-4065']

DOI: https://doi.org/10.35848/1347-4065/ac90a4