A5091374337- Nuclear Physics and Applications
- Nuclear reactor physics and engineering
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Boron Compounds in Chemistry
- Nuclear Materials and Properties
- Radiation Therapy and Dosimetry
- Advanced NMR Techniques and Applications
- Superconducting Materials and Applications
- Ion-surface interactions and analysis
- Heat transfer and supercritical fluids
- Boron and Carbon Nanomaterials Research
- Particle Accelerators and Free-Electron Lasers
- Nuclear physics research studies
- Magnetic confinement fusion research
- Nuclear Engineering Thermal-Hydraulics
- Radiopharmaceutical Chemistry and Applications
- X-ray Diffraction in Crystallography
- Medical Imaging Techniques and Applications
- Particle accelerators and beam dynamics
- Non-Destructive Testing Techniques
- X-ray Spectroscopy and Fluorescence Analysis
- Crystallography and Radiation Phenomena
- Radiation Effects in Electronics
- Chemical Synthesis and Characterization
Hokkaido University
2012-2025
Accelerator-based BNCT systems using 9Be(p, n) neutron sources have been constructed and under construction. This reaction become preferable over about 10 MeV since the production becomes more efficient, but radioactive products increase with proton energy. In case of construction near a hospital we should consider not only rate also radioactivity. Therefore, it is necessary to obtain information on required beam power an accelerator activity as function energy decide optimal We performed...
At present, the clinical trials of Boron Neutron Capture Therapy (BNCT) are being performed at research reactor facilities. However, an accelerator based BNCT has a merit that it can be built in hospital. So, we just launched development project for on order to establish and spread as effective therapy near future. In project, compact proton linac installed hospital will applied neutron source, energy beam is planned less than about 10 MeV reduce radioactivity. The requires epithermal with...
We have studied an accelerator-based Be(p,n) neutron source for the boron capture therapy (BNCT) which can be installed near a hospital and treat deeply placed tumour. With higher proton energy, accelerator beam power becomes lower because efficiency generating neutrons per increases. However, generation epithermal may decrease energy of generated higher. have, therefore, calculated dependence required efficiencies several energies from 8 to 30 MeV. found that MeV is one third at twice as
We are developing a fiber type two-dimentional (2-D) position-sensitive detector having spatial resolution less than 0.5 mm in order to use it the time-of-flight (TOF) measurements. The performance was examined, and some experiments on TOF radiography were performed using this detector. results indicated that could be applied successfully measurement very useful since gave more informative data those obtained by conventional broad energy band.
Neutron imaging using a pulsed neutron time-of-flight method can give an energy dependent transmission image, namely, spectroscopic image. This image includes the structure information if sample is coherent scatterer. Here, two examples are introduced. First, we obtained of welded SS304 and 308. Change crystal depending on position was observed. Furthermore, measured spatial SS samples treated in different ways, surface treatment whole body treatment. There were almost no change, but cross...
Click to increase image sizeClick decrease sizeKEYWORDS: curium-244neutron capturecross sectiontime-of-flightnuclear dataJ-PARCMLFNNRIinnovative nuclear systemminor actinide