Akira Hirose

HIROSE, Akira

Professor 
Department of Physics and Engineering Physics
Director, Plasma Physics Laboratory
Telephone: (306) 966-6414

Facsimile: (306) 966-1977
E-mail: akira.hirose@usask.ca
Office: 66 Physics

Ph.D., D.Sc.,
FAPS, FIEEE, FRSC, CRC (T1)


Research Interests

Tokamak physics and engineering 
Designed and built STOR-1M and STOR-M tokamaks for plasma heating and confinement studies. Experimental programs inlcude ac (alternating current) operation, Ohmic H-modes (high confinement modes) by turbulent edge heating and plasma biasing, Compact Torus injection, fluctuation measurements, and anomalous transport.  

Compact Torus (CT) Injectors (in collaboration with Professor C. Xiao)
The Plasma Physics Laboratory fabricated two Compact Torus injectors, CFFTP-CTF (Canadian Fusion Fuels Technology Project - Compact Toroid Fueller) and US-CTI (University of Saskatchewan - Compact Torus Injector). The objective of CT injection experiments is to develop fuelling technologies for future tokamak fusion reactors in which the current technologies may be inadequate for central fueling. The CFFTP-CTF achieved the first nondisruptive CT fuelling on Tokamak de Varennes at CCFM (Centre canadien de fusion magnetique). US-CTI installed on the STOR-M tokamak has unique capability of variable injection angles. CT injection into tokamak involves rapid magnetic reconnection, excitation of Alfven waves, and plasma heating.   

Theoretical Studies on Plasma and Instabilities and Anomalous Transport
Current and pressure gradient driven instabilities in tokamaks and their consequences on plasma confinement. Recent achievements include development of fully kinetic electromagnetic integral equation codes for the ballooning and drift type modes in tokamaks, prediction of short wavelength drift type modes and long wavelength ion acoustic type mode which is not subject to Landau damping. Basic theoretical studies include rigorous formulation of resonance broadening theory without Markovian ansatz, analytic formulation of sub-diffusive process in plasma turbulence, Hall MHD, effects of plasma flows on instabilities, etc.   

Applications of Plasma Technologies (in collaboration with Dr. Q. Yang and Professor C. Xiao)
Development of plasma sources for plasma based material synthesis and surface modification. Recent achievements include synthesis of diamond at unusually low temperature (250 C), synthesis of carbon nanostructures (nanotubes, nanocones) and their applications, e.g., carbon nanotubes as catalysts grid and field electron emission from carbon nanocones. Coating of biomedical polymers with DLC (diamond-like carbon) has also been achieved. DLC coated polymers exhibit improved haemocompatibility compared with untreated samples. 
 
Links

Brief CV and List of Publications

P812 (E&M) Lecture Notes

P862 (Plasma Waves) Lecture Notes

EP225 Wave Animation



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