A5103258224- Solar and Space Plasma Dynamics
- Planetary Science and Exploration
- Aerospace Engineering and Energy Systems
- Spacecraft and Cryogenic Technologies
- Geophysics and Gravity Measurements
- Methane Hydrates and Related Phenomena
- Advanced X-ray Imaging Techniques
- Optical Systems and Laser Technology
- Adaptive optics and wavefront sensing
- Laser Material Processing Techniques
- Pulsars and Gravitational Waves Research
- Astrophysics and Cosmic Phenomena
- Arctic and Antarctic ice dynamics
- Laser-induced spectroscopy and plasma
- Dark Matter and Cosmic Phenomena
- Laser-Ablation Synthesis of Nanoparticles
Nagoya University
1994-2024
Konan University
2013
Kobe University
2013
National Institute of Polar Research
1990-1993
This study presents an approach for fabricating Wolter type-I mirrors x-ray telescopes using a nickel electroforming replication process with quartz glass mandrels. The proposed method addresses the challenges encountered in conventional fabrication techniques, which involve electroless nickel-coated aluminum mandrels that are susceptible to corrosion and thermal deformation. Quartz offer excellent chemical, thermal, mechanical stability, enabling efficient production of high-performance...
We have been developing X-ray optics for a fourth FOXSI (Focusing Optics Solar Imager) sounding rocket experiment, FOXSI-4. fabricated two types of optics, soft (SXR) and hard (HXR), specified observations. conducted irradiation tests to evaluate performances such as angular resolution effective area. For the Flight Model (FM) SXR, resultant in Half Power Diameter (HPD) is 16 ± 2 / 14 arcseconds at 2.7 4.5 keV best images, respectively no significant energy dependence HPD seen. The observed...
Expansion dynamics of plume after irradiation the target material is essential to prepare nanoparticles by pulsed laser ablation and it can be modified collision two plumes. In present paper, effect head-on on expansion discussed numerical simulation based fluid compared with experimental results emission. Suppression plumes counter observed experiment reproduced simulation. Results calculation indicate that shockwave induced opposite suppress vapor expansion. The vapors do not mix around...
Balloon experiments in Antarctica make possible to observe continuously the astrophysical objects southern polar sky during flight of more than 20 days. New fields and instrument for balloon experiment are proposed.