Gul Rooh

• PhD
• Professor at Abdul Wali Khan University Mardan

AMoRE searches for the neutrinoless double beta decay using 100 kg of enriched ^{100}Mo. Scintillating molybdate crystals coupled with a metallic magnetic calorimeter operate at milli-Kelvin temperatures to measure the energy of electrons emitted in the decay. AMoRE-I is a demonstrator for the full-scale AMoRE, operated at the Yangyang Underground...

In this work, the melt-quenching technique was employed to prepare lead borate glasses with varying amounts of Eu2O3. Various characterization approaches were used to investigate the physical, structural, optical, luminescence, and radiation-shielding properties of the developed glasses. The phase and structural compositions were confirmed by XRD a...

The AMoRE collaboration searches for neutrinoless double beta decay of $$^{100}$$ 100 Mo using molybdate scintillating crystals via low temperature thermal calorimetric detection. The early phases of the experiment, AMoRE-pilot and AMoRE-I, have demonstrated competitive discovery potential. Presently, the AMoRE-II experiment, featuring a large dete...

AMoRE-II aims to search for neutrinoless double beta decay ( $$0\nu \beta \beta $$ 0 ν β β ) with an array of 423 $$\hbox {Li}_2^{100}\hbox {MoO}_4$$ Li 2 100 MoO 4 crystals operating in the cryogenic system as the main phase of the Advanced Molybdenum-based Rare process Experiment (AMoRE). AMoRE has been planned to operate in three phases: AMoRE-p...

The present study aims to examine the concentration effect of Eu3+ ions in Boro Tellurite glass and how it affects its physicochemical and photo luminescent characteristics. Using the melt quenching method, a series of Boro-Telluride glasses with the composition (30-x) TeO2–30B2O3–10ZnO–30BaO–xEu2O3 (where x = 0.00, 0.05, 0.10, 0.50, 1.00, 1.50, 2....

The AMoRE collaboration searches for neutrinoless double beta decay of $^{100}$Mo using molybdate scintillating crystals via low temperature thermal calorimetric detection. The early phases of the experiment, AMoRE-pilot and AMoRE-I, have demonstrated competitive discovery potential. Presently, the AMoRE-II experiment, featuring a large detector ar...

AMoRE searches for the signature of neutrinoless double beta decay of $^{100}$Mo with a 100 kg sample of enriched $^{100}$Mo. Scintillating molybdate crystals coupled with a metallic magnetic calorimeter operate at milli-Kelvin temperatures to measure the energy of electrons emitted in the decay. As a demonstration of the full-scale AMoRE, we condu...

The AMoRE-II experiment will search for the 0]ββ decay of 100 Mo nuclei using molybdate crystal scintillators, operating at milli-Kelvin (mK) temperatures, with a total of 80 kg of 100 Mo. The background goal for the experiment is 10-4 counts/ keV/kg/year in the region of interest around the 0]ββ decay Q-value of 3,034 keV. To achieve this level, t...

(Li2O)0.20(SrO)0.30(Nd2O3)0.01(B2O3)0.49−x(Gd2O3)x, where x = 0, 3, 5, 7, and 10 mol%, glass was melt-quenched to test it as a laser source in the near-infrared (NIR) region. The structural modification, absorption spectra, Judd–Ofelt (J–O) parameters, luminescence spectra, radiative laser parameters, lifetimes, XRD, and FTIR spectra were studied....

B2O3–SiO2–Na2O–K2O–Dy2O3 glasses were prepared and study for their spectroscopic and physical properties in detail. The density of present BSNK glasses increases with an increase in Dy-ions concentration. Moreover, Dy-ion concentration (N) and field Strength also show an increasing trend. Absorption spectra exhibit eight characteristic peaks in Vis...

The Ho3+-ions doped in CaO-SrO-BaO-B2O3 glass (BCBaSrHo) has been synthesis to study its emission, absorption, and decay time measurements. JO theory has been used to evaluate various radiative properties of BCBaSrHo. The increase in the density with Ho3+-ion concentration implies the tightly packed and compactness of the BCBaSrHo glass structure....

We prepare glasses with a chemical composition of 10NaO2-10SrO2-10Gd2O3-69P2O5-1Dy2O3 (NSrODy) and 10NaF-10SrO2-10GdF3-69P2O5-1Dy2O3 (NSrFDy) melt-quenching method and study the effect of Gd2O3 and GdF3 compounds on their physical and luminescence properties. We observed higher emission spectra intensity of NSrFDy glass than that of NSrODy glass. T...

The Advanced Mo-based Rare process Experiment (AMoRE)-Pilot experiment is an initial phase of the AMoRE search for neutrinoless double beta decay of $$^{100}$$ 100 Mo, with the purpose of investigating the level and sources of backgrounds. Searches for neutrinoless double beta decay generally require ultimately low backgrounds. Surface $$\alpha $$...

Gd³⁺ and Dy³⁺-doped borate glasses are considered attractive candidates for white light emission. In this work, the samples, developed by the melt-quenching route, contain a mixture of Gd³⁺ and Dy³⁺ with known molar compositions. The determined physical parameters indicate structural changes. Information regarding the Judd-Ofelt (JO) intensity para...

The impact of varying Sm2O3 content on radiation shielding properties of 15PbF2: (65-x) B2O3 : 20K2O:xSm2O3 (where 0 ≤ x ≤ 1.5 mol %) glass samples, was investigated by studying their physical, radio-luminescence and X-ray-shielding characteristics. The density of glasses increased with an increase in Sm2O3 contents. Evaluating the X-ray shielding...

Glass sample with B2O3-SiO2-CaO-BaO: Sm2O3 formula (labeled as BSB-Sm) was synthesized by melt-quenching method. The optical and luminescence properties of BSBSm glasses were investigated for display devices applications. The compactness of the glass is also confirmed from the increase in field-strength, interionic distance and polaron radius decre...

The Sm2O3-doped B2O3- K2O-PbF2 host glasses were synthesized by melt-quenching process. to comprehend visible luminescence and lasing potentiality, optical absorption, excitation, emission and decay measurement of developed glasses were studied. The experimental oscillator strength were calculated from absorption spectra of BKPFSm0.5 (optimized) gl...

Praseodymium doped potassium aluminum phosphate (P2O5-K2O-Al2O3) glasses with various proportions of the Pr³⁺ ions were synthesized using a facile melt-quenching method. The prepared modified (P2O5-K2O3-Al2O3) glasses were characterized using techniques such as X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), absorption spe...

The Sm2O3-activated barium calcium strontium borate (BCSrSm) glasses were prepared via the melt-quenching route, and investigates important parameters such as absorption spectra, excitation, and luminescence, lifetime decay and luminescent color. The absorption-spectra exhibits ten absorption transitions related to the ground state (⁶H5/2)-to-excit...

This study concentrates on energy transfer between rare-earth ions in bismuth borate glasses. The LiBBiEu³⁺, LiBBi:Dy3+, and co-doped LiBBiDy15Eu20 glasses were synthesized by melt-quenching process and carried out their structural, physical, optical, and luminescence investigations. The photoluminescence (PL)-emission spectra of LiBBi:Eu³⁺ glass s...

We report the NIR luminescence of Nd³⁺-incorporated borate glasses, developed via melt- quenching rout. The change in density, molar volume and refractive index with elevated content of Nd³⁺ shows glass structural modification. The absorption spectra reveal the most intense band at 582 nm due to the transition from ⁴I9/2 →⁴G7/2. At λexc = 582 nm lu...

In this work, the spectroscopic properties of Dysprosium doped lithium-bismuth-borate glasses were investigated for different photonic and lasing applications. The photon absorption was observed in Uv–Vis–NIR region. Using Jud-Ofelt analysis the electric and magnetic dipole contribution were calculated to determine the parameters (Ω = 2, 4, 6), rad...

We study energy transfer, Photo and X-ray luminescence in lithium barium borate glasses doped with Gd and Dy. We find that the Dy³⁺ luminescence at 575-nm emission wavelength increases while the Gd³⁺ emission at λem = 312 nm decreases, attributed to the energy transfer (ET) from the ⁶P7/2 state of Gd³⁺ ions to the ⁴F9/2 state of Dy³⁺ ions. From the...

10BaO-10ZnO-10Gd2O3-69P2O3-1Ho2O3 (ZBOH) and 10BaO-10ZnO-10GdF3-69P2O3-1Ho2O3 (ZBFH) were developed by the melt-quenched-method. The synthesised ZBOH and ZBFH glass samples were characterized for Uv-Vis-NIR, excitation, emission, decay time profile measurements and physical properties. It is observed that the ZBOH glass have higher density and refr...

Two optimized glasses were prepared with composition 10ZnO-10Gd2O3–10BaO–69P2O3-1Pr2O3 (1ZGPr) and 10ZnO-10GdF3-10BaO–69P2O3-1Pr2O3 (2ZGPr) by melt-quenching technique and study their structural, optical, physical and emission properties. In the absorption spectra seven absorption bands were observed corresponding to transition from 3H4 state at 44...

We develop two Er³⁺-ions-doped Phosphate glass systems, 69P2O5-10Gd2O3-10BaO-10ZnO-1Er2O3 and 69P2O5-10GdF3-10BaO-10ZnO-1Er2O3, labeled as ZBaFEr and ZBaOEr, respectively, by the melt-quenching technique and study systematically their physical, optical, and luminescence properties such as densities, refractive indexes, ultraviolet-visible near-infr...

The glass having B2O3-Na2O-Y2O3-SiO2:Sm2O3 were fabricated to study its various Spectroscopic and radiative properties. For NBS-glass samples the trend for JO-parameters Ω4 > Ω2 > Ω6 except NBS-01 glass sample. The experimental (βexp) branching ratio are compared with theoretical (βcal) branching ratio and are in agreement with each other. The obta...

The current development status and future perspective of Tl-based inorganic scintillators are the subjects of this highlights. Thallium (Tl) ion is known to have very efficient luminescence in the widely used NaI:Tl+ , CsI:Tl+ , and recently discovered Cs2Cu3I5:Tl+ scintillators. Besides being an efficient luminescence center, Tl possesses a high d...

Erbium (Er) doped P2O5-K2O3-Al2O3:Er2O3 glasses (KPEr) with different contents of Er³⁺ ions were fabricated by famous melt-quenching technique. The fabricated samples were characterized by using physical, X-ray photoelectron spectroscopy (XPS), photoluminescence, absorption, and J-O analysis techniques. The XRF analyses were performed in order to k...

Glasses with compositions TeO2-BaO-Li2O-GeO2:Sm2O3 were prepared by melt-quenching technique and labeled by TBaLG-Sm. In this study, we report their radiative, physical, optical and luminescence properties. In the emission spectra, four emission peaks were observed at 563 nm, 599 nm, 645 nm, 707 nm wavelengths with corresponding transitions as ⁴G5/...

In this work, a comparative study of Dy³⁺ activated NMgBiBDy and NBaBiBDy glasses is carried out by investigating the luminescence and lasing properties for the application of white-light generation. By using absorption spectra the oscillator strengths [experimental (fexp) and calculated (fcal)] are measured. The small stimulated emission crossecti...

Searches for neutrinoless double beta decay generally require ultimate low backgrounds. Surface $\alpha$ decays on the crystals themselves or nearby materials can deposit a continuum of energies that can be as high as the $Q$-value of the decay and may cover in the region of interest (ROI). The AMoRE-Pilot experiment is an initial phase of the AMoR...

In current study Neodymium doped phosphate glasses were prepared and subsequently the Physical and luminescence properties of these glasses were thoroughly analyzed. In total, eleven absorption bands centered at 352, 431, 474, 512, 526, 583, 626, 683, 746, 803 and 875 nm were observed in absorption spectra. Similarly, the emission spectra of the pr...

Na2O-MO-Bi2O3-B2O3-Sm2O3 glasses (MO=Ba/Mg) were developed for the light emitting materials applications. Four broad emission peaks were observed at transitions ⁴G5/2 → ⁶HJ (J=5/2, 7/2, 9/2 and 11/2). The maximum transition occur at 600 nm. Concentration quenching were observed at 0.5 mol% of Sm³⁺ ion for both glasses. The X-ray luminescence spectr...

Er³⁺ ions doped sodium strontium gadolinium oxide and oxy-fluoride phosphate glass samples prepared by conventional melt quenching technique. The samples were melted at 1200 °C in electric furnace with alumina crucibles. The densities of the samples were measure with the help of Archimedes principle using water as immersion liquid. The refractive i...

We report the luminescence and energy transfer features in (B2O3)0.55-x(Li2O)0.30 (MgO)0.10(Gd2O3)0.05 (Sm2O3)x glasses, prepared via melt-quenching rout. By employing the Judd–Ofelt (JO) theory, the spectral parameters such as oscillator strengths, stimulated emission cross-sections, radiative transition probability and branching ratios are evalua...

Sm 3+ ions doped sodium-tetra-borate glasses were developed by melt quenching technique and their physical and luminescence properties were studied. The developed glasses absorbs photons in the UV-Vis-NIR regions. Photoluminescence (excitation and emission) characteristics shows that under 402 nm excitation, strong emission in the orange region owi...

The present study reports the preparation and analysis of physical, luminescence and structural properties of Dy2O3 doped phosphate glasses. The density and refractive index demonstrate increasing tendency as Dy2O3 concentration increased. The luminescence concentration quenching point is observed at 1.0 mol% of Dy2O3 and 17 mol% of Gd2O3 concentra...

Pioneered by our group, thallium (Tl)‐based inorganic halide single‐crystals are potential new scintillators. Most of these scintillators exhibit excellent scintillation performance, including peak emission between 370 and 450 nm, good energy resolutions, high light yield (more than 50 000 ph MeV‐1) and fast decay‐time (less than 40 ns). In additio...

Bismuth borate glasses containing lithium and gadolinium were doped with (0.1–2.5 mol%) of Ce and their optical and radiation response were investigated. These modified glasses exhibited photoluminescent properties in response to the radiations, which were evidenced by their broad-band spectral features around 378 nm due to 5d→4f transitions of the...

The present study reports the Gd³⁺-sensitized Dy³⁺ luminescence and energy-transfer phenomenon, occurring in (B2O3)0.55-x (Li2O) 0.30(MgO)0.10(Gd2O3)0.05 (Dy2O3)x glasses, quenched by high-temperature melting. We study the Judd-Ofelt (JO) intensity parameters and radiative properties, determined by the absorption and emission spectra. The photolumi...

A new Tl2LiScCl6 (TLSC) single crystal was grown by using the two-zone vertical Bridgman method. The TLSC belongs to the cubic chloro-elpasolite crystal family. Under X-ray excitation at room temperature, an emission spectrum from 300 to 550 nm was obtained, with the maximum emission being at 385 nm. The scintillation properties, such as the energy...

25Li2O–05Gd2O3– 15PbO – (55-x) SiO2:x Sm2O3 (LPOSm) and 25Li2O–05GdF3- 15PbO – (55-x) SiO2:x Sm2O3 (LPFSm)glasses were prepared by melt quenching method. Optical, luminescence JO-parameters and radiative properties were studied using various techniques. While comparing Ω2 parameter values between LPOSm05 and LPFSm05, the LPFSm05 glass has more asym...

LGFDy glasses doped with Dy2O3 (0.1, 0.5, 1.0, 1.5 and 2.0 mol %) were synthesised by conventional melt quenching method and various properties are studied by absorption, Judd–Ofelt analysis, photoluminescence, X-ray excited luminescence, decay curve and CIE color chromaticity measurement. Judd-Ofelt parameters (Ω2, Ω4 and Ω6) are valuated form JO...

The advanced molybdenum-based rare process experiment (AMoRE) aims to search for neutrinoless double beta decay (0νββ) of 100Mo with ∼100kg of 100Mo-enriched molybdenum embedded in cryogenic detectors with a dual heat and light readout. At the current, pilot stage of the AMoRE project we employ six calcium molybdate crystals with a total mass of 1....

Dy2O3-doped lithium lead gadolinium silicate glass was prepared for physical, optical, structural, X-ray induced luminescence and PL-luminescence properties for various potential applications in solid state lighting applications. JO parameters were estimated using JO theory. For the developed samples using emission spectra, CIE color coordinates an...

In this work Dy2O3 doped tri-alkali oxyfluoro-borate (NKLB-Dy) glasses were prepared by melt quenching technique for white light applications. The important optical and physical properties of the studied NKLB-Dy glasses were determined. Judd-Ofelt (JO) parameters (Ωλ, λ = 2, 4, 6) were calculated for prepared glasses using the JO-theory. The radiat...

In this work, we synthesize Li2O–Gd2O3-MO-B2O3–Nd2O3 glasses (where MO = Ba/Bi) by melt-quenching technique for laser applications; characterize their physical properties, absorption and luminescence spectra; and determine their decay time and Judd-Oflet (J-O) parameters. We confirm the glass phase of the samples by XRD pattern and obtain the J-O p...

Traditional melt-quenching technique is adopted for synthesis of Sm2O3 doped lithium barium gadolinium silicate (LBGS: Li2O-BaO-Gd2O3-SiO2) glasses. These glass samples are characterized by different spectroscopic techniques under ambient conditions. Density and molar volume of the present LBGS glass samples increase with increasing Sm³⁺ ion-concen...

The physical and luminescent properties of Sm³⁺-doped oxide and oxy-fluoride phosphate glasses were investigated. The glass samples with chemical composition of 69P2O5-10BaO-10ZnO-10Gd2O3-1Sm2O3 and 69P2O5-10BaO-10ZnO-10GdF3-1Sm2O3 were prepared by conventional melt quenching technique. The prepared glass samples were characterized with density, mo...

The Advanced Molybdenum-based Rare process Experiment (AMoRE) aims to search for neutrinoless double beta decay (0$\nu\beta\beta$) of $^{100}$Mo with $\sim$100 kg of $^{100}$Mo-enriched molybdenum embedded in cryogenic detectors with a dual heat and light readout. At the current, pilot stage of the AMoRE project we employ six calcium molybdate crys...

Tl 2 ZrCl 6 (TZC) crystal is an efficient scintillator for high energy γ-ray detection due to its high effective atomic number, high light yield and good energy resolution. This crystal with the dimension of diameter 10 mm and length 50 mm is grown from the melt by using vertical Bridgman technique. In this communication, we report on its pulse sha...

In this paper, luminescence and lasing properties of Dy ³⁺ -doped-borate glasses for white light generation are studied. Experimental and theoretical oscillator strengths from absorption spectrum are calculated by Judd-Oflet (JO) theory. Symmetric and environment covalency around the Dy ³⁺ ions are confirmed from JO intensity parameters (Ω λ , λ =...

The research work emphasizes on physical and luminescence properties of oxide and oxyfluoride phosphate glasses and discusses the energy transfer between Gd ³⁺ and Sm ³⁺ ions. Lithium gadolinium oxide and oxy-fluoride phosphate glasses doped with Sm ³⁺ ions were prepared by conventional melt quenching technique. Subsequently the physical and lumine...

Lithium gadolinium phosphate glass doped with Neodymium oxide was prepared by conventional melt quenching technique with chemical composition of 17Li2O3:17Gd2O3 :(66-x) P2O5:xNd2O3 where x=0.0, 0.05, 0.1, 0.5, 1.0, 2.0mol%. The physical and luminescent properties of the prepared glass are systematically analyzed for solid stat lighting applications...

Li2O-BaO-Gd2O3-SiO2 glasses with different concentration of Eu³⁺ ions were developed by the traditional melt quenching technique and characterized via FTIR, absorption, excitation, emission and CIE color coordinates analysis for visible red emission application. The FTIR shows strong band at position 740 cm⁻¹ which is attributed to Si-O-Si symmetri...

Dy³⁺-doped Li2O-BaO-Gd2O3-SiO2 (LBGS) glasses were prepared by traditional melt quenching techniques and characterized through absorption and emission spectra. Tauc's plot for allowed direct and indirect transition are shown studied and observed in the range of 3.5 (eV) to 2.9 (eV). The variation in the band gap with the addition of Dy2O3 is due to...

TlSr2I5: Eu²⁺ is a newly discovered scintillator that show promising scintillation properties for X- and γ-ray spectroscopy applications. Two zone vertical Bridgman technique is used for the growth of this scintillator. Luminescence properties of the grown crystals are measured under X-ray excitation at room temperature. Pure and Eu²⁺ doped crystal...

Sodium potassium borate glasses doped with different concentrations of Sm³⁺ ions (NKBSm) were prepared using a normal melt quench technique. Optical absorption, excitation, emission and emission decay measurements were performed to understand visible luminescence and lasing potentialities of the prepared glasses. The bonding parameters (δ) have bee...

The Eu³⁺- doped Li2O-BaO-GdF3-SiO2 glasses were fabricated by conventional melt quenching technique to study its spectroscopic and luminescence properties for lasing potential. The density and molar volume of the glass had been increased with Eu2O3 concentration. An FTIR spectrum is used to study the structural properties of the developed glasses....

Crystal growth and luminescence properties of the intrinsic Tl2ZrCl6 scintillation crystal are presented. The proposed crystal is a promising candidate for γ-ray detection owing to its high light yield, good energy resolution, and high effective atomic number (Z = 69). It has a cubic structure, which is desirable for a large-size-crystal growth. In...

A pure Tl2LiGdBr6 (TLGB) single crystal was developed. This scintillator was grown by the two-zone vertical Bridgman technique. Owing to the improvement in the crystal quality of TLGB, excellent scintillation properties were observed. The characterization of this scintillation material was carried out under X- and γ-ray excitations. In the X-ray ex...

A novel TlGd <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> Cl <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">7</sub> single crystal with scintillation properties is presented. TlGd <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink=...

Luminescence and scintillation properties of the Tl2GdCl5:Ce³⁺(5%) crystal are reported in this study. The luminescence properties are studied under the excitation of X-rays. An intense Ce³⁺ emission is observed in the range of 350–500 nm with a peak at 389 nm. Scintillation properties including light output, decay time, and energy resolution, are...

We are in the process of developing novel thallium-based inorganic halide compounds for X- and $\gamma $ -ray radiation detections. In this paper, novel cerium-activated single crystals of Tl <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> GdCl <sub xmlns:mml="http://www.w3.org/1998/Math/MathM...

The effect of higher Ce-concentration on the luminescence and scintillation properties of Cs2LiGdBr6 single crystals are studied. We used the Bridgman method for the growth of Ce-doped Cs2LiGdBr6 single crystals. Luminescence properties of the grown crystals are measured by X-ray and proton excitations. We measured the pulse height and fluorescence...

New thallium based intrinsically activated scintillator for X-ray and gamma ray detection is reported. Luminescence and scintillation properties are measured under X-ray and γ-ray excitation sources at room temperature. This compound is grown from the melt using two zones vertical Bridgman method. X-ray induced emission spectrum exhibits intense lu...

TlSr2I5: Eu2+ is a newly discovered scintillator and show promising scintillation properties for X- and {\gamma}-rays spectroscopy applications. Two zones vertical Bridgman technique is used for the growth of this scintillator. Luminescence properties of the grown crystals are measured under X-ray excitation at room temperature. Pure and Eu2+ doped...

A new intrinsically activated TlCaCl3 scintillator has been developed by conventional Bridgman technique. The emission spectra under X-ray excitation show broad band spanning in the range of 350-550 nm having maximum emission at 425 nm. Light output of 30,600 ± 3060 ph/MeV and energy resolution of 5% (FWHM) is recorded under 662 keV γ-rays excitati...

Scintillation properties of the new Tl2LaCl5: xCe³⁺ where x=0, 0.5, 1 and 10 mol % (TLC: Ce³⁺) single crystals are presented. Two zones vertical Bridgman technique is used for the growth of this scintillation material. High Z-number (79) of this material offer excellent detection efficiency for X- and γ-rays. Grown samples are characterized under X...

We report the growth and scintillation characterization of Tl2LiLuCl6 single crystals, developed from the melt using two-zone vertical Bridgman technique, while doped with 0.5, 1, 3 and 5 mol% Ce concentration. X-ray-induced emission spectra shows Ce³⁺ emission ranging from 370 to 540-nm wavelength. Energy resolution, light yield and decay time of...

Li2O–MO-B2O3:0.5Dy2O3 glasses mixed with four different alkaline earth modifier oxides MgO, CaO, SrO and BaO were synthesized by melt quench technique. Their physical properties like density, molar volume and refractive index were measured at room temperature and the effect of alkaline earth modifier oxides were studied. Also, optical absorption an...

Ce³⁺ activated Li2O–Gd2O3–BaO–B2O3glass scintillator containing neutron-capture elements (⁷Li, ¹¹Band ¹⁵⁸Gd)were developed by conventional melt-quenching technique. Luminescence spectra under UV and X-ray excitation showed Ce³⁺ion emission due to 5d→4f transition at 391 nm. Energy transfer from the host glass to Ce³⁺ions were confirmed by VUV–UV an...

In this study we present our preliminary report on the scintillation properties of new Ce-doped Tl2LaBr5 single crystal. Two zones vertical Bridgman technique is used for the growth of this compound. Pure and Ce-doped samples showed maximum emission peaks at 435 nm and 415 nm, respectively. Best light yield of 43,000+-4300 ph/MeV with 6.3% (FWHM) e...