Takeshi Fujiwara
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View article: Discriminability of selected periods III‒IV elements in photon-counting computed tomography using a pixelated CdTe detector
Discriminability of selected periods III‒IV elements in photon-counting computed tomography using a pixelated CdTe detector Open
This study introduces a new approach in photon-counting computed tomography (CT) for elemental discrimination in periods III and IV of the periodic table of elements, which have not been covered by conventional methods that rely on the K-a…
View article: Public acceptance of spent nuclear fuel use for new energy in Japan
Public acceptance of spent nuclear fuel use for new energy in Japan Open
View article: Two-dimensional single-crystal photonic scintillator for enhanced X-ray imaging
Two-dimensional single-crystal photonic scintillator for enhanced X-ray imaging Open
The evolution of X-ray detection technology has significantly enhanced sensitivity and spatial resolution in non-destructive imaging of internal structure. However, the problem of low luminescence and transparency of scintillator materials…
View article: Measuring Lubricant Concentration in the Mixture with Refrigerant: A Comprehensive Review
Measuring Lubricant Concentration in the Mixture with Refrigerant: A Comprehensive Review Open
Lubricants in mechanical vapor compression systems play an important role in lubrication and thermal insulation. During system operation, small quantities of oil are observed to dissolve with working fluid. Oil migration from the compresso…
View article: Impact of abnormal electrocardiogram findings on cardiovascular care: findings from 15 years of health check-ups
Impact of abnormal electrocardiogram findings on cardiovascular care: findings from 15 years of health check-ups Open
Background Health check-ups are routinely conducted in Japan for the early detection and initiation of treatment for diseases, in which a resting electrocardiogram (ECG) are often measured. However, evidence regarding the effectiveness of …
View article: High charge and pulse duration tunable electron gun system for pulsed X-ray source
High charge and pulse duration tunable electron gun system for pulsed X-ray source Open
View article: Stroboscopic X-ray imaging technique with optically chasing accelerator operation for mechanically driven sample
Stroboscopic X-ray imaging technique with optically chasing accelerator operation for mechanically driven sample Open
View article: Optically and Thermally Stimulated Luminescence Properties of Mn-doped CaB2O4 Crystals for Neutron Detection
Optically and Thermally Stimulated Luminescence Properties of Mn-doped CaB2O4 Crystals for Neutron Detection Open
View article: Correction to: The perception of plastic waste and composition of boathouse waste in floating villages on Tonlé Sap Lake, Cambodia
Correction to: The perception of plastic waste and composition of boathouse waste in floating villages on Tonlé Sap Lake, Cambodia Open
View article: Scintillation Properties of Tb:LiGd(WO4)2 Single Crystals for X-ray Imaging Application
Scintillation Properties of Tb:LiGd(WO4)2 Single Crystals for X-ray Imaging Application Open
View article: The perception of plastic waste and composition of boathouse waste in floating villages on Tonlé Sap Lake, Cambodia
The perception of plastic waste and composition of boathouse waste in floating villages on Tonlé Sap Lake, Cambodia Open
Villagers living on Tonlé Sap (TS) Lake have low incomes and no access to basic public services, such as waste management, domestic water, electricity, and health care. Knowledge of the villagers’ perceptions and the composition of the was…
View article: Real-Time Particle Visualization in an Electric-Cooled Cloud Chamber Using Machine Learning
Real-Time Particle Visualization in an Electric-Cooled Cloud Chamber Using Machine Learning Open
This paper presents the development and implementation of an electric-cooled cloud chamber designed to visualize alpha and beta particle tracks. Traditional cloud chambers rely on dry ice for cooling, which can be cumbersome and impractica…
View article: In situ X-ray imaging of α-Al(FeMn)Si grain evolution during solidification of an Al-Si alloy with electromagnetic stirring
In situ X-ray imaging of α-Al(FeMn)Si grain evolution during solidification of an Al-Si alloy with electromagnetic stirring Open
During the solidification of aluminum alloys with high iron concentrations in conjunction with electromagnetic stirring, the electromagnetic force induces movement of precipitated intermetallic grains containing iron. This force is assumed…
View article: Scintillation Properties of Tb-doped SrLu2O4 Single Crystals
Scintillation Properties of Tb-doped SrLu2O4 Single Crystals Open
View article: Recent status and measurement examples of the compact accelerator-driven neutron facility AISTANS
Recent status and measurement examples of the compact accelerator-driven neutron facility AISTANS Open
AISTANS, which is optimized for the Bragg-edge imaging, has been utilized for industrial applications. A second beamline was recently constructed and is under preparation for neutron analysis use. The power of the electron beam, which is u…
View article: Vacant Old Houses Are the Key to Saving Rural Areas Community Development Project Utilizing Local Resources NIPPONIA
Vacant Old Houses Are the Key to Saving Rural Areas Community Development Project Utilizing Local Resources NIPPONIA Open
View article: Temperature Dependence of Betavoltaic Cell Performance of Diamond <i>pn</i> Junction Diode
Temperature Dependence of Betavoltaic Cell Performance of Diamond <i>pn</i> Junction Diode Open
International audience
View article: High-tolerance nickel metalized glass gas electron multiplier: development and performance evaluation
High-tolerance nickel metalized glass gas electron multiplier: development and performance evaluation Open
Micro-patterned gas detectors (MPGDs) are an important type of gaseous detector that can amplify and detect a small amount of electric charge generated by the interaction between radiation and gas. These detectors have high gain and high s…
View article: Accelerator-driven photon reference field for replacement of <sup>137</sup>Cs γ-ray
Accelerator-driven photon reference field for replacement of <sup>137</sup>Cs γ-ray Open
A transition to a mechanical source for x-ray reference field is desired to replace high-activity Co-60 and Cs-137 gamma-ray sources for enhancing nuclear security and safety management. The National Metrology Institute of Japan (NMIJ) dev…
View article: Radiation-induced Luminescence Properties of Ce-doped ZnBr2-based Glasses
Radiation-induced Luminescence Properties of Ce-doped ZnBr2-based Glasses Open
Ce-doped 20CsBr-20BaBr 2 -60ZnBr 2 glasses were synthesized by the conventional melt quenching method, and their photoluminescence (PL) and scintillation properties were investigated.In the PL and scintillation spectra, all the Ce-doped gl…
View article: Development of a Bragg-edge Neutron Transmission Imaging Detector Combined with Micro-structured Boron Cathode and Glass Gas Electron Multiplier
Development of a Bragg-edge Neutron Transmission Imaging Detector Combined with Micro-structured Boron Cathode and Glass Gas Electron Multiplier Open
A neutron detector with a micro-structured boron cathode and a glass gas electron multiplier (GEM) has been developed for time-of-flight Bragg edge neutron transmission imaging.The detector has a field of view of 100 × 100 mm 2 and 128 × 1…
View article: Reduction Potential of Anthropogenic Mercury Release in Malaysia
Reduction Potential of Anthropogenic Mercury Release in Malaysia Open
Anthropogenic release of mercury, human exposure and environmental health are important and mercury management policies are required to effect significant change in Malaysia. To provide a useful information to facilitate the creation of st…
View article: Development of mixed halide translucent ceramics for imaging plates
Development of mixed halide translucent ceramics for imaging plates Open
Storage phosphor materials can be used to record an incident radiation dose, and they are often used for personal dose monitoring applications and imaging plates (IPs). Conventionally, the storage phosphors for IPs are mainly used in the f…
View article: Predicting Total Drug Clearance and Volumes of Distribution Using the Machine Learning-Mediated Multimodal Method through the Imputation of Various Nonclinical Data
Predicting Total Drug Clearance and Volumes of Distribution Using the Machine Learning-Mediated Multimodal Method through the Imputation of Various Nonclinical Data Open
Pharmacokinetic research plays an important role in the development of new drugs. Accurate predictions of human pharmacokinetic parameters are essential for the success of clinical trials. Clearance (CL) and volume of distribution (Vd) are…
View article: Genotype-by-environment interaction and genetic dissection of heartwood color in Cryptomeria japonica based on multiple common gardens and quantitative trait loci mapping
Genotype-by-environment interaction and genetic dissection of heartwood color in Cryptomeria japonica based on multiple common gardens and quantitative trait loci mapping Open
The heartwood color of a major plantation tree Cryptomeria japonica shows high variability among clones and cultivars, and brighter heartwood has higher value in the usage of non-laminated wood such as in traditional construction, which ma…
View article: Decadal trends in 137Cs concentrations in the bark and wood of trees contaminated by the Fukushima nuclear accident
Decadal trends in 137Cs concentrations in the bark and wood of trees contaminated by the Fukushima nuclear accident Open
Understanding the actual situation of radiocesium ( 137 Cs) contamination of trees caused by the Fukushima nuclear accident is essential for predicting the future contamination of wood. Particularly important is determining whether the 137…
View article: Developing a dataset for the expected anthropogenic mercury release in China in response to the Minamata convention on mercury
Developing a dataset for the expected anthropogenic mercury release in China in response to the Minamata convention on mercury Open
View article: Neutron flat-panel detector using In–Ga–Zn–O thin-film transistor
Neutron flat-panel detector using In–Ga–Zn–O thin-film transistor Open
Neutron imaging is a powerful tool for observing the internal structure of an object without destroying the object. Neutron imaging (neutron radiography) is a prominent application of neutrons but still requires significant improvements, f…
View article: ORIENTED-PLANNING SOLID WASTE MANAGEMENT SYSTEM IN VIETNAM TOWARD SUSTAINABILITY - MINIMALISM OR OPTIMIZATION
ORIENTED-PLANNING SOLID WASTE MANAGEMENT SYSTEM IN VIETNAM TOWARD SUSTAINABILITY - MINIMALISM OR OPTIMIZATION Open
In Vietnam, the rapid development of the tourism industry has led to significant challenges in the management of municipal solid waste.In Hoi An city (HAC), the solid waste management (SWM) system in the tourism area (TA) in downtown is fa…
View article: Waste Segregation at Source and Separately Collection – The Inadequacy in Implementation in Vietnam
Waste Segregation at Source and Separately Collection – The Inadequacy in Implementation in Vietnam Open
Hoi An city is a dynamic tourism city in Vietnam which had received the certificate of World Heritage Site by UNESCO. The boom in tourism activities led to problems for the solid waste management system. Solid waste collection activities a…