Integral Scintillation Efficiency Research Articles

Radioluminescence and photoluminescence properties of Sm3+-doped Gd-Ba-Na borate glass scintillator

This study investigates the potential of Gd-Ba-Na borate glasses doped with Sm3+ ions as scintillation materials. The glasses were synthesized using a melt-quenching process, and their luminescence properties were examined. The results demonstrate that the glass sample with 0.5 mol% of Sm3+ exhibits the most promising scintillation performance, achieving the highest integral scintillation efficiency (24.11%) compared to the BGO crystal. For the photoluminescence study, the emission spectra, under 403 nm excitation wavelength, show emission bands centered at 563, 599, 646, and 706 nm, consistent with characteristic Sm3+ transitions. The highest energy transfer efficiency from Gd3+ to Sm3+ (64.37%) is also found in the glass sample with 0.5 mol% Sm3+. The emission color can be tuned by varying the excitation wavelength. Excitation at 403 nm primarily excites Sm3+ ions, resulting in orange emission. In contrast, excitation at 275 nm excites Gd3+ ions, leading to reddish-orange emission. The results demonstrate the potential of this glass composition for use as a highly efficient scintillation material due to its excellent performance in both radioluminescence and photoluminescence properties.

TB3+ CONCENTRATION EFFECT ON THE PHOTO - AND RADIOLUMINESCENCE RESULT OF LANTHANUM BORATE GLASS FOR YELLOWISH GREEN LASER APPLICATION

The melt-quenching technique was used to prepare lanthanum borate glass doping with Tb3+ (LBTb) to investigate physical and luminescent characteristics. The result more a concentration of doped terbium increases the glass density, molar volume, and refractive index. The higher Tb2O3 concentrations in glasses led to an increase of absorbance in the VIS and NIR range. The emission spectra of glasses were recorded at excitation wavelengths of 228 and 377 nm, and it was found that these glasses emit yellowish-green light. Tb3+ doped glass exhibited the highest intensity at 544 nm. The optimal concentration of terbium with the most significant emission in LBTb glass is 7 mol%, whereas decay time decreases as Tb2O3 content increases. The PL measurement showed a similar pattern with the spectrum of RL emissions. Moreover, this glass performs an integral scintillation efficiency of 36.32% compared with BGO crystal. According to the CIE 1931 chromaticity, the LBTb emitted a yellowish-green color. Terbium-doped glasses have attractive potential to be used in yellowish-green lasers.

Temperature dependence of photo- and radio-luminescence and scintillation properties of Lu2YAl2.5Ga2.5O12:Ce,Mg multicomponent garnet crystals

Luminescence and scintillation properties of Lu2YAl2.5Ga2.5O12:Ce,Mg (0.02, 0.05 %) garnet crystals grown by the micro-pulling down method were investigated. The onset temperature for luminescence quenching at ∼365 K is determined from the temperature dependence of photoluminescence decay time. At room temperature, the Mg (0.05 %) sample exhibits high integral scintillation efficiency of ∼445 % of BGO crystal, light yield value of 23,500 photons/MeV, and fast scintillation decay times of 20 ns (15 %) + 54 ns (85 %). The higher radioluminescence intensity of the Mg (0.05 %) sample correlates with an appearance of its lower themally-stimulated luminescence intensity in 77–500 K range.

Spectral features of Gd2O3 modified Sm3+ doped lithium strontium borate glasses for solid-state laser applications

We report the synthesis of Sm-doped Gd2O3-modified borate glasses that radiate orange light. Structure modification features, energy transfer (ET), concentration-dependent emission, integral scintillation efficiency, and laser performance are all thoroughly investigated. These glasses are appropriate for near UV excitation lasers because they exhibit strong near ultraviolet (UV) absorption. Using the Judd-Ofelt (JO) theory and the absorption and emission spectra, we determine the oscillator strength, stimulated emission cross-section, radiation transition probability, and branch ratios as spectral characteristics. We examine the lifetime and photoluminescence (PL) spectra of Sm3+, which is UV-sensitized. The ET between Gd and Sm and from Sm to luminescence centers is what causes the PL from UV to visible/orange, which is achieved at varied excitation wavelengths between 275 and 403 nm. The ET between the Gd3+ and Sm emission centers is confirmed; as the Gd3+ level varies from 0 to 10 mol%, the ET efficiency from Gd3+ to Sm emission centers improves by 6 times. We also determine how ET affects quantum efficiency, donor emission decay kinetics, and donor-acceptor luminescence. We also note the color correlation temperature (CCT), color purity value (99%), and Commission of Illumination coordinates (CIE) as (0.595, 0.403), 1629 K under 400 excitations and, respectively. These characteristics demonstrate that these glasses can be used to create orange-laser devices that are excited by near-ultraviolet light.

Local structure and energy transfer of Gd3+ to Dy3+ in phosphate-based glasses

The phosphate-based glasses doped with Gd3+ and Dy3+ ions were fabricated by melt quenching at 1200 °C. The physical, structural, and luminescence properties that would suggest they are potential candidates for scintillating materials have been examined. The density and molar volume of glasses increase with increasing Gd3+ concentration. The absorption peaks indicate the Dy3+ energy transition from the 6H15/2 ground state to several excited states such as 6P7/2 (350 nm), 6P3/2 (364 nm), 6F7/2 (387 nm), 6G11/2 (426 nm), 6I15/2 (452 nm), 6F5/2 (807 nm), 6F7/2 (906 nm), 6F9/2 (1100 nm), 6H9/2 (1285 nm), and 6H11/2 (1697 nm), respectively. According to the findings, when compared to a commercially available BGO crystal, the highest value of x-ray luminescence spectrum intensity was observed at 17 mol% of Gd2O3, with 15.42% of the integral scintillation efficiency. However, the photoluminescence spectra show the maximum value at 13 mol% of Gd2O3 content with excited at 275 nm and 350 nm, while the decay time (τ) tends to decrease with increasing Gd2O3 content. Interestingly, the local structure study was conducted through XANES and EXAFS analysis to understand the local environment of Gd and Dy atoms. The XANES result indicated that the oxidation states of the Gd and Dy ions in the sample glass were +3. The EXAFS fitting parameters showed Debye-Waller factors (σ2) of 17 mol% of Gd2O3 as the highest value that represents a more asymmetric environment around Gd/Dy. Moreover, the EXAFS fitting indicates a short distance of Gd–Gd at 13 mol% Gd2O3 content is indicative of their efficient internal energy transfer between Gd–Gd.

Preparation and scintillation properties of Ce3+/Tb3+-co-doped oxyfluoride glass for high-resolution X-ray imaging

Scintillator glasses have the potential for X-ray imaging owing to their low production cost, controllable shape and size, and uniform ion-doping concentration. In this study, Tb3+-doped and Ce3+/Tb3+-co-doped oxyfluoride scintillator (C4T9) glass samples were fabricated by high-temperature melting and quenching. In addition, the luminescence properties of the glass samples and the discrepancy in the energy transfer mechanism between Ce3+ and Tb3+ under ultraviolet (UV) light and X-ray excitation were investigated. The C4T9 glass sample showed excellent integral scintillation efficiency of 84.1% for commercial Bi4Ge3O12 (BGO) crystals. The spatial resolution of the C4T9 glass sample was higher than that of the commercial BGO crystal with 42.29 mGy s−1 X-ray irradiation, reaching 16 lp·mm−1. C4T9 glass is expected to become a key material in medical imaging, safety inspection, industrial inspection, and other fields.

Optical, Photo, and X‐Ray Luminescence Properties of Samarium Ions Doped with Borophosphate Glasses

The optical, photo, and X‐ray luminescence properties of Sm3+ ion‐doped Li2O–Al2O3–Gd2O3–B2O3–P2O5 glasses are evaluated. The glasses are fabricated by the melt quenching technique. The absorption spectra exhibit the hypersensitive transitions 6H5/2→6P3/2 and 6H5/2→6F7/2 at the visible and near‐infrared range respectively. The glasses display four major transitions characteristic of Sm3+ ion for photoluminescence and X‐ray luminescence, with the most intense one corresponding to the 4G5/2→6H7/2 transition. The best emitting samarium concentration obtained by X‐ray excitation is compared to BGO crystals. The integral scintillation efficiency of glass is determined by total area under all of peak spectrum. The results indicate the promising application of these glasses in scintillators and for X‐ray sensing devices.

Photoluminescence and X‐Ray‐Induced Luminescence Behavior of Sm2O3‐Doped Oxyfluoroborate Scintillating Glass for Radiation Detecting Material

Various concentrations of samarium (Sm3+) ion‐activated oxyfluoroborate (ANCB:AlF3‐NaF‐CaF2‐B2O3) glasses are fabricated for its applications in red‐emitting lasers and scintillators. From the optical absorption spectrum, Ω2,4,6 intensity parameters and several radiative parameters along with the high value of absorption (2.96 × 10−21 cm2) and emission (14.13 × 10−22 cm2) cross sections are calculated. By stimulating at 403 nm, a transition corresponding to 4G5/2 → 6H7/2 (596 nm) is very intense and emits orange‐reddish luminescence of Sm3+ ion in ANCB glasses. The decay curves are fit to the Inokuti–Hirayama (I–H) model to determine the energy transfer in Sm3+: ANCB glasses. The X‐ray‐excited luminescence (XEL) spectra are determined with an X‐ray source by supplying the voltage of 50 kV and current 30 mA. The lasing parameters like stimulated emission cross section (14.13 × 10−22 cm2), optical gain (30.52 × 10−22 cm2 s), and quantum efficiency (80%) are found to be high for the 4G5/2 → 6H9/2 transition of Sm3+ ions. The quality of the emitted red light for the ANCBSm0.5 glass is calculated in terms of the (x, y) color coordinates and correlated color temperatures (CCT < 3000 K). The integral scintillation efficiency of glasses shows the maximum value of 23% in comparison with Bi4Ge3O12 scintillation crystal.

Effect of Gd2O3 concentration on photo and X-rays excited luminescence characteristics of Dy3+-Activated Li2O3–SrO–B2O3 glass

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 parameters and spectral radiative features, calculated from absorption spectra and emission properties, respectively, are obtained. Excitation and photoluminescence characteristics of the developed samples are found. The energy transfer (ET) efficiency from Gd3+ → Dy3+ is determined by considering their emission intensities and lifetime. The quantum efficiency (QE) of glasses is evaluated. Inokuti –Hirayama (IH) model shows that the Dy3+ → luminescence center ET is dominated by dipole-dipole coulomb interaction. Due to the excitation of more secondary electrons, the X-ray luminescence shows an intense emission pattern. Furthermore, we find the integral scintillation efficiency to be 8.4% of the commercial BGO scintillator crystal for the 10 mol% Gd2O3-doped glass. Commission International deI’Eclairage (CIE) color coordinates and color correlated temperature (CCT) show the suitability of tested samples for white-light applications.

Luminescence and energy transfer properties of Gd3+ and Dy3+ in borosilicate glasses for tunable emission materials

This work investigates the physical, optical, luminescence, and scintillation properties of borosilicate glasses doped with different concentrations of Gd2O3 and Dy2O3. All glasses were prepared by the melt quenching technique. The density and molar volume value increase as the Gd2O3 and Dy2O3 content increases. Dy3+ in glasses absorb photons in visible light and near-infrared regions, confirmed by the absorption spectra. The emission spectra of glasses show two strong peaks at 575 nm (4F9/2→6H13/2) and 481 nm (4F9/2→6H15/2) under Gd3+, direct Dy3+ and X-ray excitation. The integral scintillation efficiency of 1.50Dy:12.5Gd is 7.22%, compared with BGO crystal. The luminescence of glass can be tuned for different shades of white emission by selecting the excitation source such as photon with 275 nm, 387 nm and X-ray, respectively. The developed glasses are the potential for tunable emitting and scintillation material applications.

X-ray induced optical luminescence and energy transfer mechanism from Gd 3+ to Tb3+ ions in fluorophosphate scintillating glasses for X-ray detecting material

Tb3+-doped gadolinium aluminium sodium fluorophosphate scintillating glasses were synthesized by the melt-quenching method. The photoluminescence and X-ray induced optical luminescence were investigated with the concentration of Tb2O3. For photoluminescence (PL) results, Tb3+ ions activated in glasses emit intense green emission peaking at 543 nm by stimulating at 220, 275, and 377 nm. Among three excitations, the wavelength at 275 nm presented the energy transfer mechanism from Gd3+ to Tb3+ in glasses. The efficient energy transfer was analyzed via faster lifetime with increasing concentrations of Tb2O3. According to their PL spectra, the emission intensity is increased up to 5.0 mol%, then, start to decrease with further increasing of Tb3+ concentration because of concentration quenching effect. Moreover, the 6.5 mol% of Tb3+ in PGNA glasses showed the largest luminescence intensity under X-ray. The integral scintillation efficiency has been studied and exhibited the highest value at 210% when comparing to commercial Bi4Ge3O12 scintillation crystal. All results are pointed out the appropriate potential to be X-ray detecting material.

Effect of Gd2O3 in Li2O–AlF3–CaF2–P2O5–Eu2O3 glasses for laser medium and X-rays detection material applications

The glass formula of 20Li2O+10AlF3+2.5CaF2+(66.5-x)P2O5+xGd2O3+1Eu2O3 (PLACEu1Gdx), where x = 2,4,6,8,10 mol% have been prepared by conventional melt-quenching technique. These glasses' optical absorption, photoluminescence, decay time, and radioluminescence have been measured at room temperature. Judd-Ofelt's (J-O) analysis of PLACEu1Gd8 has been investigated and the magnitude of parameters follows the trend as Ω2>Ω4>Ω6. The important laser parameters such as radiative properties are calculated using J-O parameters and luminescence spectra. The decay time with the transition from the 5D0 level was estimated under 274 nm and 394 nm excitation using bi-exponential fitting. CIE coordinates, CCT and intensity ratio have been calculated for glass samples. The integral scintillation efficiency of PLACEu1Gd8 is 31% compared with BGO crystal. The PLACEu1Gdx glasses are promising for laser medium and x-rays detection material applications.

Photoluminescence and energy transfer investigations in Gd3+-Dy3+co-doped borate glasses

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 6P7/2 state decay lifetime (λexc = 275 nm and λem = 312 nm) of Gd3+ and that of the 4F9/2 state (λexc = 382 nm and λem = 575 nm) of the Dy3+, we compute the key parameters such as ET efficiencies, transfer probabilities and average donor-acceptor distance. Photometric parameters of the developed samples at λexc = 275 nm are calculated. Suggested by the Commission International deI’Eclairage coordinates, we infer that at 275-nm excitation, our optimized sample, LGBaB1.5Dy, produces white light. Measured from X-ray luminescence, the integral scintillation efficiency of LGBaB1.5Dy is 11%.

The Radioluminescence Investigation of Lead Sodium Borate Glass Doped with Eu3+

The effect of Eu3+-doped lead sodium borate glasses in composition of (79-x)B2O3: 20Na2O: xPbO: 1Eu2O3 and x are 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 and 55 mol%) were studied by using the melt-quenching technique. The absorption spectra show a maximum of 5 transition, where the strongest absorption bands were shown at 394 and 2101 nm in visible light and near-infrared region, respectively. The emission spectra of glasses were measured at 394 nm excitation wavelength. The highest peak of emission spectra corresponding due to 5D0 to 7F2 transition centered at 613 nm. The intensity of emission spectra increased with the increasing of PbO concentration upto 5 mol%. The radioluminescence spectrum (RL) has four peaks similar to photoluminescence, While, the transition at 612 nm strong strongest, identified at 0 mol% of PbO. In addition, the calculated integral scintillation efficiency of 5 mol% is 5.37% as compared with BGO crystal. The values of the color chromaticity coordinates were (0.65, 0.35) locating on the orange region of CIE diagram.

Fabrication of K2O–Al2O3–Gd2O3–P2O5 glasses for photonic and scintillation materials applications

Dysprosium (Dy3+) doped glasses of the potassium aluminum gadolinium phosphate (KAGP) were fabricated by melt-quenching technique. The preparation of glasses was varied the concentrations of Dy2O3 at 0.00, 0.05, 0.10, 0.50, 1.00 and 3.00 mol%. The physical and spectroscopic properties were investigated for white light emitting devices. The absorption spectra were attributed to Dy3+ transitions from the 6H15/2, ground state to the various excited states and found that the intensity of absorption spectra was increased with increasing Dy2O3 concentration. The Judd-Ofelt (JO) intensity parameter Ωλ (λ = 2, 4 and 6) were estimated from the absorption spectra of 0.50 mol% Dy2O3 doped KAGP glass and found to be Ω2 > Ω4 > Ω6. The photoluminescence (PL) spectra were record under 350 nm and showed four intense peaks at 482, 573, 664 and 753 nm which correspond to the excited states (4F9/2) to 6H15/2, 6H13/2, 6H11/2 and 6H9/2 respectively. The intensity of emission spectra increased with content of Dy3+ ions until 0.5 mol% in KAGP glasses and beyond concentration quenching was observed. From the emission spectra have evaluated chromaticity co-ordinates CIE 1931 and observed that the emission of KAGP glasses was in the white region. The results approve that the Dy3+ doped KAGP glasses could be considered for optoelectronic devices such as lasers and white light emitting diode (w-LEDs). The radioluminescence (RL) spectra were measured and show the strongest emission from X-rays excitation at 0.5 mol% of Dy2O3. In evaluation of scintillation property between 0.50 mol% of Dy2O3 doped KAGP glass and BGO crystal, the integral scintillation efficiency was 9% of BGO. It can be potential for integration mode of scintillation such as in medical and industrial X-ray imaging applications.

Effect of Gd2O3 on the radiation shielding, physical, optical and luminescence behaviors of Gd2O3–La2O3–ZnO–B2O3–Dy2O3 glasses

The present work focuses on lead-free glasses, their shielding behavior, and other optical studies. The glass composition with xGd2O3+10La2O3+10ZnO+(79-x) B2O3+1Dy2O3, x = 0, 5, 10, 15, 20 mol% were prepared to the characterization on physical, absorption spectra, photo-, radioluminescence, and radiation shielding properties. In the experimental results, the density of Gd-1Dy glass samples increases with the increase of Gd3+ ions concentrations. The ten-strong peak in the 5Gd-1Dy glass of absorption spectra in UV–Vis–NIR regions. The white photoluminescence spectra base of Gd-1Dy glass samples can be generated under excitation at 351 nm makes the strongest emission of Dy3+ ions and excitation through energy transfer from Gd3+ in Gd-1Dy glass samples with 275 and 351 nm. This strong white emission of Dy3+ ions also strong in x-ray luminescence and performs the integral scintillation efficiency of 33% when compared with BGO crystal. The radiation shielding properties in the diagnostic medicine energies region are correlated, the values of glass samples better than commercial windows, bricks, and concrete. The HVL values of glass sample at 15 and 20 mol% of Gd2O3 has been found better than X-ray windows. The corollaries of Gd-1Dy glass samples can be a candidate for radiation detector and lead-free radiation shielding materials in future.

White Light Emission of Gadolinium Calcium Phosphate Oxide and Oxyfluoride Glasses Doped with Dy3+

The oxide (20Gd2O3-10CaO-69P2O5) and oxyfluoride glasses (20Gd2O3-10CaF2-69P2O5, 20GdF3-10CaO-69P2O5 and 20GdF3-10CaF2-69P2O5) doped with dysprosium oxide (Dy2O3) were prepared by melt quenching technique. They were characterized through absorption and luminescence properties. The oxide and oxyfluoride glasses are compared for studying fluoride ions results. For the absorption results, the glass absorbed light in visible and near-infrared region by start from 6H15/2 ground state to higher state. The oxyfluoride glasses can absorb light greater than oxide glass, notwithstanding that the fluoride ions are not affect to absorption intensity, normally. The Judd-Ofelt (JO) parameters (Ωλ, λ = 2, 4 and 6) are analyzed from absorption results. All glasses show a similar trend of JO parameter is Ω2 > Ω6 > Ω4. The radiative transition probabilities (AR), stimulated emission cross-sections (σ(λp)) and branching ratios (β) obtained from using JO parameter. The emission spectra of all glasses present more intense at 483 nm (blue light) and 573 nm (yellow light) which are essential for white light emitting materials. However, the emission spectra of oxyfluoride glasses are higher than oxide glass due to the reduction of phonon energy. The integral scintillation efficiency of 20GdF3-10CaF2-69P2O5 doped Dy2O3 glass is compared with commercial Bi4Ge3O12 (BGO) crystal by radioluminescence spectra. It is determined at 35% of BGO crystal

The luminescence performance of Tb3+ doped ABS-BGP glasses excited by different type of energy sources

Transparent ABS-BGP (Al2O3–B2O3–SiO2–BaCO3-Gd2O3–P2O5) glasses doped with different level of Tb3+ concentrations (from 0 to 12 mol.%) were synthesized by the high-temperature melting method. The luminescent and energy transfer properties were investigated by transmittance, photoluminescence, cathodoluminescence (CL) and X-ray excited luminescence spectra. The optimal concentration of Tb3+ ions in ABS-BGP glasses excited by both ultraviolet light, electron beam, and X-ray excitation was also determined. The decay time of 543 nm main emission band of Tb3+ doped glasses decrease in the range from 1.66 ± 0.005 to 1.18 ± 0.005 ms with increasing of Tb3+ions. The energy transfer mechanism was discussed, and the corresponding critical distances for Tb3+–Tb3+ ion pairs were calculated. The integral scintillation efficiency of the 10 mol% Tb3+-doped ABS-BGP glass sample reach 63.9% of the Bi4Ge3O12 (BGO) standard crystal.

Improved scintillating properties in Ce:YAG derived silica fiber with the reduction from Ce4+ to Ce3+ ions

The cerium (Ce)-doped optical fiber materials show great applications in smart lighting, fiber laser, and high-energy ray and particle detection. A major challenge is the efficient prevention of Ce3+ oxidized to Ce4+ ions. Here we report the CO2-laser-heated drawing method for fabricating Ce:YAG derived scintillating optical fiber with a concentration of Ce ions (0.21 wt%), and the effective atomic number is 25.4. The estimated ratio of Ce4+/ΣCe is 37% in the raw YAG ceramics, which can be effectively reduced to 3% in the fiber core because of the negative oxygen atmosphere during the fiber drawing process and the formation of non-bridging oxygen. The result is confirmed by the optical absorption spectrum, X-ray absorption fine structure spectra (XAFS), and Raman spectra. These induce a strong emission peak at 401 nm under the X-ray excitation. Moreover, the normalized integral scintillation efficiency of the Ce:YAG derived fiber is up to ~43% of that of Bi4Ge3O12 (BGO) scintillating crystal. The Ce:YAG derived optical fiber is believed to be a promising candidate for scintillators in remote fiber-optic radiation detection applications.

Influence of alkaline earth oxides on Eu3+ doped lithium borate glasses for photonic, laser and radiation detection material applications

50Li2O - 20MO - (30-x)B2O3 - xEu3O3 where (M = Mg, Ca, Sr, Ba) and (x = 0, 0.1, 0.3, 0.5, 1.0, 3.0, 5.0, 7.0 glasses were prepared and characterized to study their physical & optical properties using spectroscopic measurements such as UV-Visible spectra, Luminescence spectra, Radio-Luminescence, X-Ray Luminescence etc. The electronic transitions in the UV-VIS and NIR regions are assigned to the 7F0 → 5L6, 7F0 → 5D2, 7F0 → 5D1, 7F0 → 7F6 and 7F1 → 7F6 levels centered at 394, 465, 532, 2092 and 2202 nm due to their transitions from 7F0 ground state to various excited states of Eu3+ ions, respectively. Structural studies were analyzed using Raman Spectra. Five transition bands of luminescence spectra have been observed by using an excited wavelength of 394 nm. With five emission transitions of 5D0 → 7F0, 5D0 → 7F1, 5D0 → 7F2, 5D0 → 7F3 and 5D0 → 7F4 as was reported previously in literature at 578, 591, 591, 614, 653 and 702 nm, respectively. The lower phonon energy (∼971 cm−1) and higher phonon side band intensity is observed at 5.0 mol% Eu2O3 content doped LBaB glasses while higher phonon energy (∼1176 cm−1) and lower phonon intensity observed for 5.0 mol% Eu2O3 content doped LMgB glasses. The chromaticity coordinates of Eu3+ ions in all LiMOB glasses falls in the reddish orange region. The radioluminescence (RL), emission spectra were corresponding to those from PL measurements. From RL measurement, the integral scintillation efficiency of developed glass was determined at 11.2% when compared with BGO crystal.