- Radiation Detection and Scintillator Technologies
- Medical Imaging Techniques and Applications
- Nuclear Physics and Applications
- Radiation Therapy and Dosimetry
- Atomic and Subatomic Physics Research
- Radiation Effects in Electronics
- Radioactive contamination and transfer
- Microstructure and Mechanical Properties of Steels
- Laser-Matter Interactions and Applications
- Terahertz technology and applications
- Metallurgy and Material Forming
- Advanced Radiotherapy Techniques
- Advanced Chemical Physics Studies
- Metal Alloys Wear and Properties
Toyama College
2024
Waseda University
2003-2017
Considerable amounts of radioactive substances (mainly 137Cs and 134Cs) were released into the environment after Japanese nuclear disaster in 2011. Some restrictions on residence areas lifted April 2017, owing to successive effective decontamination operations. However, distribution vast mountain, forest satoyama close city is still unknown; thus, operations such are being hampered. In this paper, we report first aerial gamma-ray imaging a schoolyard Fukushima using drone that carries high...
After the Japanese nuclear disaster in 2011, large amounts of radioactive isotopes were released and still remain a serious problem Japan. Consequently, various gamma cameras are being developed to help identify radiation hotspots ensure effective decontamination operation. The Compton camera utilizes kinematics scattering contract images without using mechanical collimator, features wide field view. For instance, we have novel that small size (13 × 14 15 cm3) light weight (1.9 kg), but...
The Y/AlSi multilayer with narrowband performance was developed for extracting a single order component from high harmonics. We compared the and thermal stability of another EUV mirror, Zr/AlSi multilayer, which has shown promising in region. At near-normal incidence, measured peak reflectances multilayers are 43% 52% at ∼63.8eV, energy bandwidths (FWHM) 1.7 eV 2.5 eV, respectively. narrower bandwidth feature obtained allows better suppression on adjacent harmonic lines. After heating up to...