Masami Ando
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View article: Correction: Ando et al. Achieving Optical Ozone Sensing with Increased Response and Recovery Speed by Using Highly Dispersed CdSe/ZnS Quantum Dots in Porous Glass. Chemosensors 2024, 12, 254
Correction: Ando et al. Achieving Optical Ozone Sensing with Increased Response and Recovery Speed by Using Highly Dispersed CdSe/ZnS Quantum Dots in Porous Glass. Chemosensors 2024, 12, 254 Open
In the original publication [...]
View article: Superimposed Wavefront Imaging of Diffraction-enhanced X-rays: sparsity-aware CT reconstruction from limited-view projections
Superimposed Wavefront Imaging of Diffraction-enhanced X-rays: sparsity-aware CT reconstruction from limited-view projections Open
Purpose In this paper, we describe an algebraic reconstruction algorithm with a total variation regularization (ART + TV) based on the Superimposed Wavefront Imaging of Diffraction-enhanced X-rays (SWIDeX) method to effectively reduce the …
View article: Phase‐contrast visualization of human tissues using superimposed wavefront imaging of diffraction‐enhanced x‐rays
Phase‐contrast visualization of human tissues using superimposed wavefront imaging of diffraction‐enhanced x‐rays Open
Background Phase‐contrast computed tomography (CT) using high‐brilliance, synchrotron‐generated x‐rays enable three‐dimensional (3D) visualization of microanatomical structures within biological specimens, offering exceptionally high‐contr…
View article: Tensile and creep properties of small specimens of reduced-activation ferritic steel F82H, and the correlation to standard specimen data
Tensile and creep properties of small specimens of reduced-activation ferritic steel F82H, and the correlation to standard specimen data Open
Background A reduced-activation ferritic/martensitic (RAFM) steel, F82H steel, is the primary candidate structural material for fusion reactor blanket. Small specimen test technique is essential to develop the blanket materials using limit…
View article: Microstructures and hardness of BCC phase iron-based high entropy alloy Fe-Mn-Cr-V-Al-C
Microstructures and hardness of BCC phase iron-based high entropy alloy Fe-Mn-Cr-V-Al-C Open
The microstructures and mechanical properties of bcc iron-based high entropy alloy (HEA) Fe-20Mn-15Cr-10 V-10Al-2.5C (in at.%) without Co and Ni elements have been investigated for applications in fields such as nuclear reactors and magnet…
View article: Size dependence of micro-scale mechanical properties on heavy-ion irradiated tempered-martensitic steel evaluated through nanoindentation and micropillar compression tests
Size dependence of micro-scale mechanical properties on heavy-ion irradiated tempered-martensitic steel evaluated through nanoindentation and micropillar compression tests Open
The size dependence of microscale mechanical properties is crucial for evaluating irradiation hardening using nanoindentation and micropillar compression tests. To predict bulk hardness without the indentation size effect in heavy-ion irra…
View article: Synchrotron Radiation Refraction-Contrast Computed Tomography Based on X-ray Dark-Field Imaging Optics of Pulmonary Malignancy: Comparison with Pathologic Examination
Synchrotron Radiation Refraction-Contrast Computed Tomography Based on X-ray Dark-Field Imaging Optics of Pulmonary Malignancy: Comparison with Pathologic Examination Open
Refraction-contrast computed tomography based on X-ray dark-field imaging (XDFI) using synchrotron radiation (SR) has shown superior resolution compared to conventional absorption-based methods and is often comparable to pathologic examina…
View article: Tensile and creep test data of reduced-activation ferritic steel F82H using small specimens and the standard specimen for comparison study
Tensile and creep test data of reduced-activation ferritic steel F82H using small specimens and the standard specimen for comparison study Open
A reduced-activation ferritic/martensitic steel, F82H steel, is the primary candidate structural material for fusion reactor blanket[1]. Tensile and creep test data are essential for blanket design to limit acceptable stress and operation …
View article: Recent improvement and evaluation of radiation resistance and magnetic properties of high entropy alloys and their applications
Recent improvement and evaluation of radiation resistance and magnetic properties of high entropy alloys and their applications Open
High-entropy alloys tend to have high strength and ductility due to their inherent properties. They are one of the new materials that have attracted attention from various fields, as they have recently been considered as a promising alloy …
View article: Microstructural evolution in tungsten binary alloys under proton and self-ion irradiations at 800 °C
Microstructural evolution in tungsten binary alloys under proton and self-ion irradiations at 800 °C Open
This study examined the effects of alloying elements such as Re and Ta on the microstructural evolution of recrystallized W under proton (1 MeV H+) and self-ion (18 MeV W6+) irradiations at 800 °C. Although the number density of voids incr…
View article: Crystal optics simulations for delineation of the three-dimensional cellular nuclear distribution using analyzer-based refraction-contrast computed tomography
Crystal optics simulations for delineation of the three-dimensional cellular nuclear distribution using analyzer-based refraction-contrast computed tomography Open
Refraction-contrast computed tomography (RCT) using a refractive angle analyzer of Si perfect crystal can reconstruct the three-dimensional structure of biological soft tissue with contrast comparable to that of stained two-dimensional pat…
View article: The status of the Japanese material properties handbook and the challenge to facilitate structural design criteria for DEMO in-vessel components
The status of the Japanese material properties handbook and the challenge to facilitate structural design criteria for DEMO in-vessel components Open
This work summarizes the current status of the material properties handbook for a structural design using Japanese reduced-activation ferritic/martensitic steel F82H. Specifically, the key structural parameters, e.g. time-independent/depen…
View article: Synchrotron Radiation-Based Refraction-Contrast Tomographic Images Using X-ray Dark-Field Imaging Optics in Human Lung Adenocarcinoma and Histologic Correlations
Synchrotron Radiation-Based Refraction-Contrast Tomographic Images Using X-ray Dark-Field Imaging Optics in Human Lung Adenocarcinoma and Histologic Correlations Open
The aim of this study was to evaluate the clinical implication of synchrotron radiation imaging techniques for human lung adenocarcinoma in comparison with pathologic examination. A refraction-based tomographic imaging technique called the…
View article: Cardiac fiber tracking on super high-resolution CT images: a comparative study
Cardiac fiber tracking on super high-resolution CT images: a comparative study Open
Purpose: High-resolution cardiac imaging and fiber analysis methods are required to understand cardiac anatomy. Although refraction-contrast x-ray CT (RCT) has high soft tissue contrast, it cannot be commonly used because it requires a syn…
View article: Three-dimensional reconstruction of human nipple using refraction-contrast x-ray computed Tomography
Three-dimensional reconstruction of human nipple using refraction-contrast x-ray computed Tomography Open
Although the nipple is clinically relevant, little is known about the spatial location of the main ducts in the nipple. A controversy still exists as to whether the main ducts are interconnected or not within the nipple. Most previous stud…
View article: Mechanical properties of neutron irradiated F82H using micro-tensile testing
Mechanical properties of neutron irradiated F82H using micro-tensile testing Open
Room temperature micro-tensile tests were successfully performed on F82H specimens neutron-irradiated at 573 K up to 5 dpa and unirradiated using a focused ion beam (FIB) device. Dimensions of the gauge section for micro-tensile specimens …
View article: Small Angle X-Ray Scattering Imaging of Soft Tissue by Using Laue Diffraction Optical System
Small Angle X-Ray Scattering Imaging of Soft Tissue by Using Laue Diffraction Optical System Open
We performed a feasibility study of Small angle X-ray scattering imaging under the condition of X-ray bright field imaging by Laue crystal diffraction optics of X-ray dark-field imaging that works as an angular analysis. Collagen in chicke…
View article: Development of benchmark reduced activation ferritic/martensitic steels for fusion energy applications
Development of benchmark reduced activation ferritic/martensitic steels for fusion energy applications Open
Reduced-activation ferritic/martensitic (RAFM) steel is the benchmark structural material for in-vessel components of fusion reactor. The current status of RAFM developments and evaluations is reviewed based on two leading RAFM steels, F82…
View article: In Vitro Validation of an Artefact Suppression Algorithm in X-Ray Phase-Contrast Computed Tomography
In Vitro Validation of an Artefact Suppression Algorithm in X-Ray Phase-Contrast Computed Tomography Open
X-ray phase-contrast tomography can significantly increase the contrast-resolution of conventional attenuation-contrast imaging, especially for soft-tissue structures that have very similar attenuation. Just as in attenuation-based tomogra…
View article: Effect of Helium on Irradiation Creep Behavior of B-Doped F82H Irradiated in HFIR
Effect of Helium on Irradiation Creep Behavior of B-Doped F82H Irradiated in HFIR Open
The diameter of pressurized tubes of F82H and B-doped F82H irradiated up to similar to 6 dpa have been measured by a non-contacting laser profilometer. The irradiation creep strains of F82H irradiated at 573 and 673K were almost linearly d…
View article: Limited view reconstruction for differential phase-contrast computed tomography
Limited view reconstruction for differential phase-contrast computed tomography Open
This paper describes an algebraic reconstruction algorithm that uses total variation (TV) regularization for differential phase contrast computed tomography (DPC-CT) using a limited number of views. In order to overcome over-flattening inh…