연구성과로 돌아가기
2022 연구성과 (30 / 280)
※ 컨트롤 + 클릭으로 열별 다중 정렬 가능합니다.
Excel 다운로드
| WoS | SCOPUS | Document Type | Document Title | Abstract | Authors | Affiliation | ResearcherID (WoS) | AuthorsID (SCOPUS) | Author Email(s) | Journal Name | JCR Abbreviation | ISSN | eISSN | Volume | Issue | WoS Edition | WoS Category | JCR Year | IF | JCR (%) | FWCI | FWCI Update Date | WoS Citation | SCOPUS Citation | Keywords (WoS) | KeywordsPlus (WoS) | Keywords (SCOPUS) | KeywordsPlus (SCOPUS) | Language | Publication Stage | Publication Year | Publication Date | DOI | JCR Link | DOI Link | WOS Link | SCOPUS Link |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ○ | ○ | Article | Crystal growth and scintillation properties of Tm3+doped LaCl3 single crystal for radiation detection | Single crystal of Tm-doped LaCl3 (LaCl3:Tm3+) with the dimension of diameter 7 mm and length 55 mm was successfully grown using an in-house-developed Bridgman furnace. The grown crystal has the self-trapped exciton (STE) emission in the range of 300-500 nm along with the characteristic emissions corresponding to the 4f-4f transition of Tm3+ ions under X-ray excitation. The scintillation characterizations of the grown crystal were performed by pulse height spectra, scintillation decay time, as well as pulse shape discrimination studies under gamma-ray and alpha-particle excitation sources. The LaCl3:Tm3+ crystal was found to have a high light yield (42,000 +/- 4,200 ph/MeV) with 4.2% energy resolution under gamma-rays excitation. Moreover, the pulse shape discrimination was studied using 137Cs and 241Am as the radiation sources with a good FOM value. The results conclude the LaCl3:Tm3+ single crystal to be a promising candidate for X-ray and gamma-ray detection purposes. | Tariwong, Y.; Vuong, P. Q.; Luan, N. T.; Saha, Sudipta; Kim, H. J.; Wantana, N.; Chanthima, N.; Kaewkhao, J.; Kothan, S. | Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand | Chanthima, Natthakridta/HRC-8083-2023; Kim, Hong Joo/AAE-1178-2022 | 56266485600; 57207618553; 57210576969; 55935496600; 59051568100; 56267058700; 35361597600; 23974520300; 6507017165 | hongjoo@knu.ac.kr;mink110@hotmail.com;suchart.kothan@cmu.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 200 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 7.4 | 0.69 | 2025-06-25 | 5 | 6 | Bridgman method; Tm3+ions; Light yield; Energy resolution; Pulse shape discrimination | PULSE-SHAPE DISCRIMINATION; SPECTROSCOPY; RESOLUTION; ER3+; ND3+; RAY | Bridgman method; Energy resolution; Light yield; Pulse shape discrimination; Tm<sup>3+</sup> ions | Chlorine compounds; Crystal growth from melt; Gamma rays; Lanthanum compounds; Scintillation; Trapped ions; lanthanum chloride; thulium; Bridgman furnace; Energy resolutions; Grown crystals; Growth properties; Light yield; Pulse shape discrimination; Radiation detection; Scintillation properties; Tm-doped; Tm3+ ion; absorption; alpha radiation; Article; crystallization; electron; gamma radiation; ionization; radiation detection; radiation energy; scintillation; Single crystals | English | 2022 | 2022-11 | 10.1016/j.radphyschem.2022.110347 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Design of the compact TPC for a high-precision 3D beam diagnostic system | A compact Time Projection Chamber (TPC) with a gas electron multiplier (GEM) is a good candidate for three-dimensional (3D) beam diagnosis of electron and ion beams. To develop the beam diagnostics, we performed simulation studies to design a compact GEM-TPC with COMSOL and GARFIELD++. The primary purpose of this detector is to measure the 3D beam profile at the medical cancer center, which requires a position resolution of & SIM; 300 ism in each coordinate and can accommodate a proton rate of 10(4) s(-1). For the design of the detector that satisfies the requirements, the simulations were done on the electric field homogeneity of the cylindrical field cage, the transport properties, and the amplification of electrons in the argon-based gases. This paper presents the design parameters of the compact TPC for constructing a high-precision 3D beam diagnostic system derived from COMSOL and GARFIELD++ simulations. | Lee, Sehwook; Ryu, Min Sang | Kyungpook Natl Univ, Dept Phys, Daegu, South Korea; Kyungpook Natl Univ, Ctr High Energy Phys, Daegu, South Korea | 57839727600; 35220504100 | mryu194@knu.ac.kr; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 201 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 7.4 | 0.14 | 2025-06-25 | 1 | 1 | Time Projection Chamber; GEM-TPC; Garfield plus plus; COMSOL; Beam diagnostic | GEM | Beam diagnostic; COMSOL; Garfield++; GEM-TPC; Time Projection Chamber | Diagnosis; Electric fields; Electron multipliers; argon; Beam diagnostics; COMSOL; Diagnostic systems; Garfield++; Gas electron multiplier-time projection chamber; Gas electron multipliers; High-precision; Three-dimensional (3D) beams; Time projection chambers; Article; cancer center; cylindrical field cage; diagnostic accuracy; electric field; electron; electron amplification; electron beam; electron transport; gas electron multiplier; ionization; multiphysics; optical resolution; physics; simulation; three-dimensional imaging; Time Projection Chamber; Ion beams | English | 2022 | 2022-11 | 10.1016/j.radphyschem.2022.110374 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Detection efficiency evaluation for low energy of a NaI(Tl) scintillation detector | To improve the characterization of the detection efficiency of a NaI(Tl) scintillation detector in the low energy range, measurements and Monte Carlo simulations were performed with a certified reference material (CRM) and disk sources. The detection efficiency as modeled. In the MCNP simulation, the detection efficiency dropped as expected at 33.17 keV. The X-ray escape correction factors of a Tl-204 disk source and MCNP simulations were compared, a factor of the Tl-204 was similar. Moreover, Correcting the X-ray escape and using fewer sources than the CRM resulted in better detection efficiency for the NaI(Tl) detector in the low energy range. | Maeng, Seongjin; Lee, Sang Hoon; Park, Seong Jin; Choi, Woo Cheol | Kyungpook Natl Univ, Sch Energy Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Radiat Sci Res Inst, Daegu 41566, South Korea; Korea Fdn Nucl Safety, Seongnam 13493, Gyeonggi Do, South Korea; Daegu Catholic Univ, Dept Radiol, Gyongsan 38430, Gyeongbuk, South Korea; BRNC, Seoul 08507, South Korea | ; Maeng, Seongjin/JXW-7080-2024 | 56783843400; 56812964000; 57748031800; 57784534500 | todaymsj@hotmail.com; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 199 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 7.4 | 0.55 | 2025-06-25 | 4 | 4 | NaI(Tl) scintillation detector; X-ray escape; Low energy ragne; Detection efficiency | COINCIDENCE-SUMMING CORRECTION; RAY | Detection efficiency; Low energy ragne; NaI(Tl) scintillation detector; X-ray escape | Intelligent systems; Scintillation; Scintillation counters; Sodium Iodide; X ray detectors; cesium 137; cobalt 60; sodium 22; sodium iodide; thallium; thallium 204; Certified reference materials; Detection efficiency; Efficiency evaluation; Low energy ragne; Low-energy range; Lower energies; MCNP simulations; NaI(tl) scintillation detector; Range measurements; X-ray escape; Article; certified reference material; controlled study; detection efficiency; detection efficiency evaluation; energy; energy correction; evaluation study; gamma radiation; measurement; Monte Carlo method; parameters; physical parameters; radiological parameters; X ray escape; Monte Carlo methods | English | 2022 | 2022-10 | 10.1016/j.radphyschem.2022.110325 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Development of flexible radiation shielding materials from natural Rubber/Sb2O3 composites | In this paper, a natural rubber (NR) with the addition of antimony oxide (Sb2O3) has been developed for flexible radiation shielding materials. The composites of NR were prepared various amounts of Sb2O3 concentrations. The mechanical properties including modulus at 100% elongation, tensile strength, elongation at break, hardness, and specific gravity of the NR composites were investigated. The gamma-ray shielding properties were measured in the energy range of 0.223 MeV-0.662 MeV by using the Compton scattering technique and compared with the theoretical values. From the results, it was found that the values of mass attenuation coefficient (mu m), effective atomic number (Zeff), and effective electron density (Neff) increased with an increase of the Sb2O3 content. For the X-ray shielding properties, the mass attenuation coefficient (mu m) of NR composites was also higher with increasing Sb2O3 concentration. Moreover, the half-value layer (HVL) of 20, 40, and 100 phr composites have been improved compared to the commercial windows, concrete, and red brick. These results reflected that the NR/Sb2O3 composites are suitable for use as flexible radiation shielding materials. | Yonphan, S.; Chaiphaksa, W.; Kalkornsurapranee, E.; Tuljittraporn, A.; Kothan, S.; Kaewjaeng, S.; Intachai, N.; Wongdamnern, N.; Kedkaew, C.; Kim, H. J.; Kaewkhao, J. | Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Prince Songkla Univ, Fac Sci, Dept Phys Sci, Hat Yai 90110, Thailand; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai, Thailand; Rajamangala Univ Technol Suvarnabhumi, Fac Sci & Technol, Nonthaburi 11000, Thailand; King Mongkuts Univ Technol Thonburi KMUTT, Fac Sci, Dept Phys, Bangkok 10140, Thailand; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | Kim, Hong Joo/AAE-1178-2022; Chaiphaksa, Wuttichai/KGM-7876-2024; Intachai, Nuttawadee/HOH-1735-2023 | 57224484852; 56267524400; 35484608800; 57680065100; 6507017165; 55871868200; 57221909427; 23570216500; 25642826400; 59051568100; 23974520300 | wuttichai@npru.ac.th;jakrapong@webmail.npru.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 200 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 7.4 | 4.28 | 2025-06-25 | 29 | 31 | Antimony oxide; Natural rubber; Flexible shielding materials; Radiation shielding | GLASS | Antimony oxide; Flexible shielding materials; Natural rubber; Radiation shielding | Antimony compounds; Atoms; Density (specific gravity); Gamma rays; Radiation shielding; Tensile strength; antimony derivative; antimony oxide; rubber; stearic acid; sulfur; unclassified drug; zinc oxide; Compton scattering technique; Elongation-at-break; Energy ranges; Flexible shielding material; Gamma-ray shielding; Mass attenuation coefficients; Natural rubber composites; Radiation shielding material; Shielding materials; Shielding properties; analytical parameters; Article; compton effect; concentration (parameter); controlled study; effective atomic number; effective electron density; gamma radiation; hardness; mass attenuation coefficient; mechanics; relative density; tensile strength; Rubber | English | 2022 | 2022-11 | 10.1016/j.radphyschem.2022.110379 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Development of novel crystal scintillators for lunar surface science | The development of novel crystal scintillators for a lunar landed mission near future is reported. On that mission, we aim to assess the radiation dose, biological effect, water, and other resources on the lunar surface. To accomplish this, a Lunar Vehicle Radiation Dosimeter (LVRAD) made up of several radiation detectors has been proposed. New scintillation crystals are being developed for neutron and gamma measurements. Stilbene and undoped LaCl3 crystal were selected for fast neutron/gamma spectrometers. The mutual combination of organic and inorganic detectors benefits from direct fast neutron detection via 35Cl(n, p)35S reaction as well as the good gamma resolution of LaCl3 and the high detection efficiency of stilbene. LaCl3 crystals with the diameter of 38.1 mm were grown by a homemade modified Bridgman furnace. For epithermal neutron spectrometer, 6LiI:Ag crystal was selected due to its pulse shape discrimination capability and highest detection efficiency in terms of size for both thermal and epithermal neutron among scintillation materials. Enrich 6LiI was purified using the zone-refining technique. The crystal was then grown by the same Bridgman furnace. | Vuong, Phan Quoc; Quang, Nguyen Duy; Kim, HongJoo; Lee, J. Y.; Kang, S. C.; Nam, Uk-Won; Park, Won -Kee; Sohn, Jongdae; Choi, Young -Jun; Youn, Sukwon; Ye, Sung-Joon; Kim, Sunghwan | Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Korea Astron & Space Sci Inst, Space Sci Div, Daejeon 34055, South Korea; Seoul Natl Univ, Grad Sch Convergence Sci & Technol, Dept Appl Bioengn, Seoul 08826, South Korea; Cheongju Univ, Dept Radiol Sci, Cheongju 28503, South Korea | Choi, Jong/L-6893-2019; Kim, Hong Joo/AAE-1178-2022; Lee, Jooyoung/HTN-0335-2023 | 57207618553; 57223004024; 59051568100; 57204797944; 57191418531; 6602840978; 35285730800; 55193404200; 55685945500; 57210900037; 7202088315; 36165569900 | hongjoo@knu.ac.kr; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 201 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 7.4 | 0.83 | 2025-06-25 | 6 | 6 | Crystal scintillator; LaCl 3 crystal; Pulse shape discrimination; Neutron spectroscopy; Epithermal neutron | PLASTIC SCINTILLATORS; NEUTRON DETECTOR; PROSPECTOR | Crystal scintillator; Epithermal neutron; LaCl<sub>3</sub> crystal; Neutron spectroscopy; Pulse shape discrimination | Chlorine compounds; Efficiency; Ionization; Lanthanum compounds; Neutron detectors; Phosphors; Scintillation; Scintillation counters; chloride; lanthanum chloride; stilbene; sulfur 35; water; Biological effects; Bridgman furnace; Crystal scintillators; Detection efficiency; Epithermal neutron; Lacl3 crystal; Lunar surface; Neutron spectroscopy; Pulse shape discrimination; Surface science; Article; crystal structure; furnace; gamma radiation; moon; neutron radiation; radiation detection; radiation dose; radiation measurement; scintillation; Neutrons | English | 2022 | 2022-11 | 10.1016/j.radphyschem.2022.110425 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Effect of edible coating with Morus alba root extract and carboxymethyl cellulose for enhancing the quality and preventing the browning of banana (Musa acuminata Cavendish) during storage | This study aimed to develop an edible coating to extend the shelf life of bananas and increase their consumption. Bananas were coated with coating materials containing 1.5% carboxymethyl cellulose (CMC); 2.0% Tween 80; and 0% (CM0), 0.5% (CM0.5), 1.5% (CM1.5), and 2.5% (CM2.5) of Morus alba root extracts, respectively. The experiment evaluated weight loss, texture, total chlorophyll contents, ion leakage, CO2 evolution rate, color, polyphenol oxidase activity, browning index, and visual quality score of bananas during storage. The CM1.5 treatment induced less change in weight loss, texture, sucrose, total chlorophyll content, and CO2 evolution of stored bananas. In addition, the CM1.5 treatment delayed changes in colors, polyphenol oxidase activity, browning index, and visual quality levels to their lowest. Therefore, the CM1.5 treatment was the most suitable material to create an edible coating that maintains banana quality characteristics and appearance during storage. | Kim, Jiyoon; Choi, Ji-Young; Kim, Jungsoo; Moon, Kwang-Deog | Kyungpook Natl Univ, Sch Food Sci & Biotechnol, 80 Daehak Ro, Daegu, South Korea; Kyungpook Natl Univ, Coll Agr & Life Sci, Bldg 3,80 Daehak Ro, Daegu, South Korea | 57208110209; 57219113098; 57211108486; 55999192900 | kdmoon@knu.ac.kr; | FOOD PACKAGING AND SHELF LIFE | FOOD PACKAGING SHELF | 2214-2894 | 31 | SCIE | FOOD SCIENCE & TECHNOLOGY | 2022 | 8 | 7.4 | 4.66 | 2025-06-25 | 52 | 56 | Banana (Musa acuminata Cavendish); Browning; Carboxymethyl cellulose; Edible coating; Morus alba root extract; Ripening | SHELF-LIFE; COLD-STORAGE; CLASSIFICATION; ATTRIBUTES; ATMOSPHERE; ACID; FOOD; CHITOSAN; MANGO; FRUIT | Banana (Musa acuminata Cavendish); Browning; Carboxymethyl cellulose; Edible coating; Morus alba root extract; Ripening | English | 2022 | 2022-03 | 10.1016/j.fpsl.2022.100809 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | Effect of Gd2O3 in Li2O-AlF3-CaF2-P2O5-Eu2O3 glasses for laser medium and X-rays detection material applications | The glass formula of 20Li(2)O+10AlF(3)+2.5CaF(2)+(66.5-x)P2O5+xGd(2)O(3)+1Eu(2)O(3) (PLACEu1Gdx), where x = 2,4,6,8,10 mol% have been prepared by conventional melt-quenching technique. These glasses' optical ab-sorption, 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 02 > 04 > 06. The important laser parameters such as radiative properties are calculated using J-O pa-rameters 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 PLACEu(1)Gd(8) is 31% compared with BGO crystal. The PLACEu1Gdx glasses are promising for laser medium and x-rays detection material applications. | Sarumaha, C. S.; Rajagukguk, J.; Tongdang, J.; Chanthima, N.; Kim, H. J.; Kothan, S.; Kaewkhao, J. | Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Univ Negeri Medan, Fac Math & Nat Sci, Dept Phys, Medan 20221, Indonesia; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand | Chanthima, Natthakridta/HRC-8083-2023; Rajagukguk, Juniastel/O-4570-2019; SARUMAHA, CHAYANI/ABE-3018-2022 | 57214718279; 57118059600; 57392780200; 35361597600; 59051568100; 6507017165; 23974520300 | juniastel@unimed.ac.id;jakrapong@webmail.npru.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 199 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 7.4 | 1.38 | 2025-06-25 | 5 | 10 | Phosphateglass; Phononsideband; Photoluminescence; J-Oparameter; Integralscintillationefficiency | GADOLINIUM CALCIUM-PHOSPHATE; WHITE-LIGHT EMISSION; SIDE-BAND ANALYSIS; LUMINESCENCE PROPERTIES; ENERGY-TRANSFER; FLUOROPHOSPHATE GLASSES; OXYFLUORIDE GLASSES; EU3+-DOPED PHOSPHATE; EU3+ IONS; PHOTOLUMINESCENCE | Integral scintillation efficiency; J-O parameter; Phonon sideband; Phosphate glass; Photoluminescence | Aluminum compounds; Calcium fluoride; Efficiency; Europium compounds; Fluorspar; Gadolinium compounds; Light absorption; Lithium compounds; Photoluminescence; Scintillation; aluminum fluoride glass; calcium fluoride glass; europium oxide glass; gadolinium oxide glass; glass; lithium oxide glass; phosphorus pentoxide glass; unclassified drug; Integral scintillation efficiency; Judd-Ofelt parameters; Laser medium; Material application; Melt quenching techniques; Phonon sideband; Phosphate glass; Photoluminescence decay time; Scintillation efficiency; X-ray detections; absorption; Article; concentration (parameter); decay time constant; photoluminescence; room temperature; X ray; Glass | English | 2022 | 2022-10 | 10.1016/j.radphyschem.2022.110362 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Effect of Gd2O3 on radiation shielding, physical and optical properties of sodium borosilicate glass system | The radiation shielding, physical and optical properties were studied with the glass formula in the composition of xGd2O3: 40Na2O: 5SiO2: (55-x)B2O3, where x = 0, 2.5, 5, 7.5, 10, 12.5, 15 mol%, respectively. The gadolinium sodium borosilicate glasses were melted entirely by melt quenching technique at 1200oc. Gamma-ray shielding property was studied with Compton scattering technique from 0.224 MeV to 0.662 MeV gamma-ray energy range. The density and molar volume of the glass samples were increased with higher Gd2O3 concentration. The glass samples show high transparency which can be observed from transmission spectra. The radiation shielding properties are better with increased Gd2O3 concentrations. The results of total mass attenuation coefficient, the effective atomic number and the effective electron density showed the theoretical and experimental values are in good agreement and showed similar trends. The best shielding radiation properties were obtained at 15% of Gd2O3 concentration. At 15% of Gd2O3 concentration shows the same attenuation behavior with 0.64 mm of lead. The half value layer (0.662 MeV) at 15% of Gd2O3 concentration is better than the commercial window, serpentine and ordinary concrete. | Intachai, N.; Wantana, N.; Kaewjaeng, S.; Chaiphaksa, W.; Cheewasukhanont, W.; Htun, K. T.; Kothan, S.; Kim, H. J.; Kaewkhao, J. | Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand; Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | Kim, Hong Joo/AAE-1178-2022; Intachai, Nuttawadee/HOH-1735-2023; Chaiphaksa, Wuttichai/KGM-7876-2024 | 57221909427; 56267058700; 55871868200; 56267524400; 57118163600; 57221962831; 6507017165; 59051568100; 23974520300 | nuttawadee.i@cmu.ac.th;siriprapa.k@cmu.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 199 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 7.4 | 3.18 | 2025-06-25 | 19 | 23 | Borosilicate glass; Shielding material; Compton scattering | BORATE; ATTENUATION | Borosilicate glass; Compton scattering; Shielding material | Atoms; Gadolinium compounds; Gamma rays; Optical properties; Sodium compounds; concrete; gadolinium; gadolinium oxide; glass; inorganic compound; metal oxide; serpentine; sodium borosilicate; unclassified drug; Compton scattering technique; Energy ranges; Gamma-ray energy; Gamma-ray shielding; Glass samples; Glass systems; Melt quenching techniques; Shielding materials; Shielding properties; Sodium borosilicate glass; Article; chemical composition; compton effect; concentration response; electron; gamma radiation; mathematical analysis; radiation attenuation; radiation energy; thickness; Borosilicate glass | English | 2022 | 2022-10 | 10.1016/j.radphyschem.2022.110361 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Effects of genotype and environment on the nutrient and metabolic profiles of soybeans genetically modified with epidermal growth factor or thioredoxin compared with conventional soybeans | Genetically modified (GM) soybean events CT-4025 and CT-1001, which contain genes encoding thioredoxin and epidermal growth factor, respectively, have previously been developed for use in cosmetic materials. In this study, compositional analyses and metabolic profiling were carried out to assess the unintended effects on the composition of metabolites between GM soybeans and non-GM soybeans. The soybeans were cultivated in 2016 and 2017 in two regions (Ochang and Jeonju) in the Republic of Korea. Statistical analyses were performed using univariate and multivariate methods. Results from the compositional analysis showed that the compositional variation in the tested GM varieties was within the range of conventional varieties. Furthermore, the results of multivariate analysis revealed that the growing year had a much stronger effect on soybean composition than did the growing site or genotypes. In the case of soybeans harvested in 2016, the levels of most amino acids decreased while those of secondary metabolites and sucrose increased, indicating that water stress due to low rainfall in 2016 induced metabolic changes. These results suggest that environmental factors have a major impact on the composition of GM and non-GM soybeans. We further demonstrated that metabolic approaches are useful for investigating the environmental change-induced metabolic network in GM crops intended for use in cosmetic materials. | Kim, Ye Jin; Park, Young Jin; Oh, Sung-Dug; Yoon, Jeong Su; Kim, Jae Geun; Seo, Ju-Seok; Park, Jung-Ho; Kim, Chang-Gi; Park, Soo-Yun; Park, Soon Ki; Choi, Man-Soo; Kim, Jae Kwang | Incheon Natl Univ, Div Life Sci, Incheon 22012, South Korea; Natl Inst Agr Sci, Dept Agr Biotechnol, Rural Dev Adm, Jeonju 54874, South Korea; Celltrion Inc, Incheon 22014, South Korea; Korea Res Inst Biosci & Biotechnol, Bioevaluat Ctr, Cheongju 28116, South Korea; Kyungpook Natl Univ, Sch Appl Biosci, Daegu 41566, South Korea; Natl Inst Crop Sci, Rural Dev Adm, Div Crop Fdn, Wonju 55365, South Korea | Kim, Hee/F-4594-2014 | 57039428900; 57202422844; 7404104129; 57195725903; 36463661100; 57208809937; 36546514200; 57188553789; 45661697500; 8055974900; 57220545872; 56892616700 | kjkpj@inu.ac.kr; | INDUSTRIAL CROPS AND PRODUCTS | IND CROP PROD | 0926-6690 | 1872-633X | 175 | SCIE | AGRICULTURAL ENGINEERING;AGRONOMY | 2022 | 5.9 | 7.4 | 0.68 | 2025-06-25 | 6 | 7 | Genetically modified soybean; Thioredoxin; Epidermal growth factor; Metabolic profiling; Multivariate analysis | COMPARATIVE SAFETY ASSESSMENT; QUALITY; SEED | Epidermal growth factor; Genetically modified soybean; Metabolic profiling; Multivariate analysis; Thioredoxin | Chonju; Korea; South Korea; Glycine max; Cosmetics; Cultivation; Factor analysis; Metabolism; Metabolites; Compositional analysis; Epidermal growth factors; Genes encoding; Genetically modified; Genetically modified soybeans; Metabolic profiles; Metabolic profiling; Multi variate analysis; Republic of Korea; Thioredoxins; environment; genotype; multivariate analysis; rainfall; soybean; sucrose; Multivariant analysis | English | 2022 | 2022-01 | 10.1016/j.indcrop.2021.114229 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Eu³⁺ ions doped lithium aluminium gadolinium borophosphate glasses: Energy transfer, optical and luminescence behaviors for red emission material | Eu3+ ions doped Li2O-Al2O3-Gd2O3-B2O3-P2O5 glasses have been prepared by melt quenching and characterized for their physical, optical and luminescence properties. Judd-Ofelt (JO) theory is used to evaluate the oscillator strengths and the three intensity parameters (omega(lambda), lambda = 2, 4 and 6) of the glasses. The radiative properties such as radiative transition probabilities (A(R)), radiative lifetimes (tau), branching ratios (beta) and emission cross-section (sigma(e)) have been calculated from the absorption spectra according to the JO theory. The scintillation properties of glasses could be measured by comparing emission spectrum under the X-ray induced luminescence with bismuth germanate (BGO). The Commission Internationale de l'Elcairage (CIE) chromaticity coordinates (x,y) were also evaluated from the emission spectra of glasses and values of glasses take part in the red region. | Kiwsakunkran, N.; Tongdang, J.; Chanthima, N.; Kim, H. J.; Kothan, S.; Kaewkhao, J. | Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand | Chanthima, Natthakridta/HRC-8083-2023; Kim, Hong Joo/AAE-1178-2022 | 57203821928; 57392780200; 35361597600; 59051568100; 6507017165; 23974520300 | natthakridta@webmail.npru.ac.th;suchart.kothan@cmu.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 199 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 7.4 | 1.79 | 2025-06-25 | 7 | 14 | Physical; Optical; Luminescence; Borophosphate; Glasses | BISMUTH PHOSPHATE-GLASSES; ALKALINE-EARTH OXIDES; SPECTROSCOPIC PROPERTIES; SM3+ IONS; LASER; GD3+; PHOTOLUMINESCENCE; PARAMETERS; STATE; ER3+ | Borophosphate; Glasses; Luminescence; Optical; Physical | Alumina; Aluminum oxide; Bismuth compounds; Emission spectroscopy; Energy transfer; Gadolinium compounds; Glass; Judd-Ofelt theory; Lithium compounds; aluminum; bismuth; bismuth germanate; borophosphate; europium; gadolinium; glass; lithium; phosphate; unclassified drug; Borophosphates; Emission materials; Emission spectrums; Energy-transfer; Judd- Ofelt theories; Luminescence properties; Melt-quenching; Optical-; Physical; Red emissions; absorption; Article; controlled study; energy transfer; Judd Ofelt theory; luminescence; optics; physical phenomena; probability; scintillation; theory; X ray; Luminescence | English | 2022 | 2022-10 | 10.1016/j.radphyschem.2022.110390 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Excitation functions of proton-induced reactions on ⁿatW target for rhenium isotope production | The proton-induced reaction cross-sections on natural tungsten within the proton energy range of 12.50 +/- 0.79 MeV to 44.08 +/- 0.33 MeV are determined by using the stacked-foil activation method and offline gamma-ray spectrometry at the MC50 cyclotron of the Korea Institute of Radiological and Medical Science. The proton beam intensity is determined by using the Cu-nat(p,xn)Zn-62 and Cu-nat(p,xn)Zn-65 monitor reactions. The residual nuclide activities are measured using an HPGe gamma-ray detector. The experimental results in this work contains 63 individual measured points for seven identified nuclides Re-181;182m,Re-g;183;184m,Re-g;186 via the W-nat(p,xn) reactions. In addition, the thick target yields are determined for the Re-181;182m,Re-g;183;184m,Re-g;186 products produced from the W-nat (p,xn) reactions. The present data are compared with literature data and the theoretical predictions from the TALYS-1.9 code and the TENDL-2019 library. | Thi Hien Nguyen; Van Do Nguyen; Tien Thanh Kim; Kim, Guinyun; Naik, Haladhara | Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Duy Tan Univ, Inst Theoret & Appl Res, Hanoi 100000, Vietnam; Vietnam Acad Sci & Technol, Inst Phys, 10 Dao Tan, Hanoi, Vietnam; Bhabha Atom Res Ctr, Radiochem Div, Mumbai 400085, Maharashtra, India; Duy Tan Univ, Fac Nat Sci, Da Nang 550000, Vietnam | Nguyen, Thong/ABV-0605-2022 | 57201066391; 56219609900; 16033121800; 35313854400; 7005890232 | gnkim@knu.ac.kr; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 196 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 7.4 | 0.14 | 2025-06-25 | 2 | 1 | W-nat(p,xn)Re-181;182m,Re-g;183;184m,Re-g;186 reactions; Stacked-foil activation method; Offline gamma-ray spectrometric technique; MC50 cyclotron; Excitation function; Thick target yields | PRODUCTION CROSS-SECTIONS; INDUCED NUCLEAR-REACTIONS; BOMBARDMENT; TUNGSTEN; YIELDS | <sup>nat</sup>W(p,xn)<sup>181;182m,g;183;184m,g;186</sup>Re reactions; Excitation function; MC50 cyclotron; Offline γ-ray spectrometric technique; Stacked-foil activation method; Thick target yields | Chemical activation; Gamma rays; Germanium compounds; Isotopes; Phosphorus compounds; Rhenium; Spectrometry; copper; proton; rhenium; tungsten; zinc; 182m,g;; 183;; 184m,g;; 186re reaction; Activation method; Excitation function; MC50 cyclotron; NatW(p,xn)181;; Offline; Offline γ-ray spectrometric technique; Spectrometric techniques; Stacked-foil activation; Stacked-foil activation method; Thick target yield; Article; electron; gamma radiation; gamma spectrometry; radiation measurement; radioactivity; reaction analysis; Gamma ray spectrometers | English | 2022 | 2022-07 | 10.1016/j.radphyschem.2022.110145 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | High density of tungsten gadolinium borate glasses for radiation shielding material: Effect of WO3 concentration | The aim of this work is to study the radiation shielding properties in the glass systems xWO(3): (70-x)Gd2O3: 30B(2)O(3) (WGB) where x = 40, 45, 50, 55, and 60 mol%. These glasses were prepared by the melt quenching techniques. The Compton scattering technique was used to measure the experimental values of the total mass attenuation coefficient (MAC), the effective atomic number (Z(eff)), and the electron density (Neff) at 0.223 MeV-0.662 MeV. The measured MAC, Z(eff,) and N-eff results were compared with the simulated and theoretical values obtained from Geant4 code and WinXcom software respectively. The comparison between the experimental, simulation and theoretical approaches for the determination of the several radiation shielding factors reflects the good detection system setup of Compton scattering experiment. The density is decreased with the increasing of WO3 concentrations from 6.1868 g/cm(3) to 5.2669 g/cm(3) and molar volume result demonstrated non-bridging oxygen and network former in the glass structure. The MAC, Z(eff), and N-eff results have similar trends, which increase by adding WO3 contents, and decrease with increasing of the energies. The HVL result showed that increased at the higher WO3 concentrations. Moreover, the HVL at 40 mol % of the concentration showed the highest density, and demonstrated better efficiency when compared with some standard shielding materials. | Cheewasukhanont, W.; Limkitjaroenporn, P.; Sayyed, M. I.; Kothan, S.; Kim, H. J.; Kaewkhao, J. | Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Isra Univ, Fac Sci, Dept Phys, Amman, Jordan; Imam Abdulrahman Bin Faisal Univ IAU, Inst Res & Med Consultat IRMC, Dept Nucl Med Res, POB 1982, Dammam 31441, Saudi Arabia; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | Kim, Hong Joo/AAE-1178-2022; Sayyed, M.I/AAB-7789-2022 | 57118163600; 35362361700; 57189890554; 6507017165; 59051568100; 23974520300 | suchart.kothan@cmu.ac.th;jakrapong@webmail.npru.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 192 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 7.4 | 10.08 | 2025-06-25 | 71 | 73 | Compton scattering technique; Geant4 code; WO3; Radiation shielding glasses | EFFECTIVE ATOMIC NUMBERS; MASS ATTENUATION COEFFICIENTS; GAMMA-RAYS; DIFFERENT ENERGIES; BI2O3; BAO; SYSTEM; PBO | Compton scattering technique; Geant4 code; Radiation shielding glasses; WO<sub>3</sub> | Compton scattering; Gadolinium compounds; Glass; Radiation shielding; Tungsten compounds; boric acid; gadolinium; glass; oxygen; tungsten; Compton scattering technique; Experimental values; GEANT4 code; Glass systems; Mass attenuation coefficients; Material effect; Melt quenching techniques; Radiation shielding glass; Radiation shielding material; Shielding properties; algorithm; Article; attenuation; chemical composition; compton effect; concentration response; radiation measurement; simulation; software; theoretical study; Atoms | English | 2022 | 2022-03 | 10.1016/j.radphyschem.2021.109926 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Luminescence and Judd-Ofelt analysis of gallium aluminum gadolinium yttrium borate scintillating glass doped with Dy³⁺ | In this work, Dy3+:B2O3-Ga2O3-Al2O3-Gd2O3-Y2O3 glasses system were prepared by melt quenching technique. The physical, chemical groups, optical, photoluminescence and radioluminescence properties of glasses were investigated. The density and refractive index tended to increase with increasing Dy2O3 concentration. The Dy3+ doped glasses absorbed photon in UV, VIS and NIR region in the absorption spectra. For photoluminescence study, the 276 and 351 nm wavelength owned the strong excitation peak, so they were used to measure the emission spectra. The main emission peak of Dy3+ showed at 487 and 575 nm with 4F9/2 -> 6H15/2,13/2 transition due to both direct excitation and the Gd-Dy energy transfer. The luminescence lifetime of Dy3+ was in the milliseconds order that shortened with adding Dy2O3 content. The PL emission intensity at 100 K was around 1.48 times compared to its value at room temperature (~300 K). The Judd-Ofelt theory was used to analyse the radiative properties of glass and its result performed the quantum efficiency around 63.75%. The X-rays induced optical luminescence represented the highest intensity in 0.50 mol% Dy2O3-doped glass similarly to the photoluminescence under 351 nm excitation. The X-rays scintillation efficiency of this glass is 14% compared with BGO crystal. The developed glass in this work owns the potential for X-rays detection material with integration mode usage, and is also interesting for white light source and laser medium applications. | Borisut, P.; Insiripong, S.; Limkitjaroenporn, P.; Meejitpaisan, P.; Kaewnuam, E.; Chaipaksa, W.; Rajaramakrishna, R.; Kim, H. J.; Kaewkhao, J. | Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Muban Chombueng Rajabhat Univ, Fac Sci & Technol, Phys Program, Ratchaburi 70150, Thailand; Natl Coll, Dept Post Grad Studies & Res Phys, Bangalore 560070, India; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | Kim, Hong Joo/AAE-1178-2022; Kaewnaum, Eakgapon/JWO-6262-2024; R, Rajaramakrishna/E-8110-2019 | 57223361782; 57213935132; 35362361700; 56006076500; 56267295300; 57754288500; 49864195200; 59051568100; 23974520300 | smit_insiripong@hotmail.com;Eakgapon_9@hotmail.com; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 199 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 7.4 | 2.07 | 2025-06-25 | 14 | 16 | Borate; Dysprosium; Luminescence; Scintillation | WHITE-LIGHT EMISSION; CALCIUM-PHOSPHATE OXIDE; OXYFLUORIDE GLASSES; LASER MEDIUM; PHOTOLUMINESCENCE; IONS; PERFORMANCE; INTENSITIES; ABSORPTION; SYSTEM | Borate; Dysprosium; Luminescence; Scintillation | Alumina; Aluminum oxide; Dysprosium compounds; Emission spectroscopy; Energy transfer; Gadolinium compounds; Gallium compounds; Glass; Judd-Ofelt theory; Photoluminescence; Refractive index; aluminum; boric acid; dysprosium; gadolinium; gallium; yttrium; Absorbed photons; Chemical group; Doped glass; Glass systems; Judd-ofelt analysis; Melt quenching techniques; Optical photoluminescence; Property; Radio-luminescence; Scintillating glass; absorption spectroscopy; Article; chemical structure; colorimetry; comparative study; complex formation; concentration (parameter); energy transfer; Fourier transform infrared spectroscopy; Judd Ofelt analysis; luminescence; near infrared spectrophotometry; phase transition; photoluminescence; physical chemistry; process development; radiation detection; radioluminescence; refraction index; room temperature; scintillation; ultraviolet radiation; ultraviolet visible spectrophotometry; X ray analysis; Scintillation | English | 2022 | 2022-10 | 10.1016/j.radphyschem.2022.110284 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | New developments in the Gd³⁺/Sm³⁺ ions doped lithium aluminum borate glasses of luminescent materials for lighting applications | The standard melt-quenching technique was used to create a novel series of Gd3+ and Sm(3+)co-doped borate glasses with the LAGdxBSm1.0 and LAGd2.5BSmx series of glasses. All samples were analyzed by XRD, FTIR, and optical screening to determine their characteristics (absorption, excitation, and emission). The results confirmed the amorphous nature of the synthesized glass samples, while the FTIR revealed the existence of BO3, and BO4 vibrations in the samples. The series glass quality of LAGdxBSm1.0 doped in the host matrix was confirmed by the radioluminescence and photoluminescence results at the optimal doping concentration of 2.5 mol%. The decay of samples was investigated to determine the relationship between doping concentration and luminescence characteristics. Glasses have been created into an appropriate lighting glass using 25Li(2)O-5Al(2)O(3)-2.5Gd(2)O(3)(67.5-X)B2O3-XSm2O3 host matrix glass doped with varying concentrations of Sm3+. Visible light and nearinfrared absorption values in the glass samples demonstrate the existence of Sm(3+)ions. The photoluminescence and radioluminescence spectra have high concentration quenching (0.5 mol%) and produce four emission peak wavelengths, with the maximum emission wavelength at 600 nm (soft orange color). Based on these results, the studied glass series could be a good choice for X-ray scintillators in medical, industrial, and other settings in the future. | Rittisut, W.; Mool-Am-Kha, P.; Wantana, N.; Ruangtaweep, Y.; Rujirawat, S.; Kidkhunthod, P.; Manyum, P.; Yimnirun, R.; Prasatkhetragarn, A.; Kothan, S.; Kim, H. J.; Kaewkhao, J. | Suranaree Univ Technol, Inst Sci, Sch Phys, Res Network NANOTEC SUT Adv Nanomat & Chara, Nakhon Ratchasama 30000, Thailand; Khon Kaen Univ, Ctr Excellence Innovat Chem, Fac Sci, Khon Kaen 40002, Thailand; Khon Kaen Univ, Dept Chem, Khon Kaen 40002, Thailand; Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci, Nakhon Pathom 73000, Thailand; Synchrotron Light Res Inst Publ Org, 111 Univ Ave, Nakhon Pathom 30000, Thailand; Suranaree Univ Technol, Sch Phys & Ctr Excellence High Energy Phys & Astr, Nakhon Ratchasama 30000, Thailand; VISTEC, Sch Energy Sci & Engn, Wangchan 21210, Rayong, Thailand; VISTEC, Res Network NANOTEC VISTEC Nanotechnol Energy, Wangchan 21210, Rayong, Thailand; Univ Phayao, Sch Sci, Appl Sci Program, Phayao 56000, Thailand; Chiang Mai Univ, Fac Associated Med Sci, Dept Radiol Technol, Ctr Radiat Res & Med Imaging, Chiang Mai 50200, Thailand; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | ; Kim, Hong Joo/AAE-1178-2022 | 57208675448; 57223232295; 56267058700; 37108588700; 6603107856; 35272197100; 6506891657; 24504594000; 23098474100; 6507017165; 59051568100; 23974520300 | suchart.kothan@cmu.ac.th;jakrapong@webmail.npru.ac.th; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 201 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 7.4 | 2.07 | 2025-06-25 | 13 | 16 | Radioluminescence; Photoluminescence; Concentration quenching | ENERGY-TRANSFER; OPTICAL-PROPERTIES; SM3+ IONS; PHOTOLUMINESCENCE PROPERTIES; PHOSPHATE-GLASSES; GD3+; LASER; TEMPERATURE; STATE | Concentration quenching; Photoluminescence; Radioluminescence | Alumina; Aluminum oxide; Diagnosis; Fourier transform infrared spectroscopy; Infrared devices; Light; Light absorption; Lighting; Lithium compounds; Photoluminescence; Quenching; aluminum; gadolinium; lithium; samarium; Concentration quenching; Doping concentration; FTIR; Glass samples; Host matrices; Lighting applications; Luminescent material; Melt quenching techniques; Novel series; Radio-luminescence; Article; concentration (parameter); doping; Fourier transform infrared spectroscopy; illumination; luminescence; photochemical quenching; photoluminescence; Glass | English | 2022 | 2022-11 | 10.1016/j.radphyschem.2022.110443 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Novel technique for simultaneous detecting three naturally occurring radon isotopes (222Rn, 220Rn and 219Rn) | Radon inspection is becoming increasingly prevalent due to its negative effects on human health. After cigarette smoking, radon is the second leading cause of lung cancer due to its internal dosage through respiration. In this study, we employed a novel liquid scintillation technique to simultaneously detect three naturally occurring radon isotopes (222Rn, 220Rn and 219Rn). The detection method utilises the delayed coincidence technique and the pulse shape discrimination implemented by digital charge comparison. Furthermore, a Monte Carlo simulation was performed to obtain the gamma response functions of the detector using standard 22Na, 60Co and 137Cs gamma sources. Additionally, the detector resolution and energy calibration parameters were determined by comparing the measured and simulated light output distributions. For the measurement, radon gas from the atmosphere was infused into 700 mL of Ultima Gold AB for 48 h. We determined that the minimum detectable activities of 222Rn (238U decay chain), 220Rn (232 Th day chain) and 219Rn (235U decay chain) were 1.7, 1.0 and 1.2 mBq/l, respectively. The proposed novel technique offers a potential application for detecting all three naturally occurring radon isotopes in water samples. | Ntarisa, Amos Vincent; Kim, H. J.; Aryal, Pabitra; Quang, Nguyen Duy; Saha, Sudipta | Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | ; Kim, Hong Joo/AAE-1178-2022; Ntarisa, Amos Vincent/JWO-6086-2024; Ntarisa, Amos/JWO-6086-2024 | 57160289700; 59051568100; 57196222852; 57223004024; 55935496600 | hongjoo@knu.ac.kr; | RADIATION PHYSICS AND CHEMISTRY | RADIAT PHYS CHEM | 0969-806X | 1879-0895 | 200 | SCIE | CHEMISTRY, PHYSICAL;NUCLEAR SCIENCE & TECHNOLOGY;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 7.4 | 0.97 | 2025-06-25 | 6 | 7 | Radon isotopes; Energy calibration; Liquid scintillation counting; Delayed coincidence technique; Pulse shape discrimination; Minimum detectable activity | LIQUID; BC501A; ALPHA; CALIBRATION; DECAY | Delayed coincidence technique; Energy calibration; Liquid scintillation counting; Minimum detectable activity; Pulse shape discrimination; Radon isotopes | Calibration; Intelligent systems; Isotopes; Monte Carlo methods; Scintillation; radioisotope; radon 219; radon 220; radon 222; unclassified drug; Coincidence techniques; Delayed coincidence; Delayed coincidence technique; Energy calibration; Liquid Scintillation counting; Liquid-scintillation counting; Minimum detectable activities; Naturally occurring; Pulse shape discrimination; Radon isotopes; absorption; Article; calibration; concentration (parameter); gamma radiation; radiation energy; simulation; Radon | English | 2022 | 2022-11 | 10.1016/j.radphyschem.2022.110202 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
페이지 이동: