Faculty Members

Department of Nuclear Safety Engineering

Name	Tohru Suzuki
Job Title	Professor

Education	Bachelor’s Degree, Chemical Engineering, Kyoto University, 1992
	Doctoral Degree, Chemical Engineering, Kyoto University, 1999

Business/ Professional Career	Research Assistant, Kyoto University (1997-1999)
	Post-Doctoral Fellow, Japan Nuclear Cycle Development Institute (1999-2002)
	Research Fellow, Karlsruhe Institute of Technology, Germany (2002-2006)
	Group Leader, Reactor Safety Engineering Group, Japan Atomic Energy Agency (2006-2017)
	Professor, Department of Nuclear Safety Engineering, Tokyo City University (2017- )

Specialized Field	Thermal hydraulics for conventional/advanced reactors
	Safety evaluation for advanced reactors (FBR, ADS etc.)
	Sever-accident analysis for advanced reactors (FBR, ADS etc.)

Basic Policy	Complementary approach for safety assessment incorporating both experimental study and computational simulation

Areas of Interests	Phenomenological investigation of multi-phase flows in disrupted core
	Experimental study on thermal hydraulics for safety evaluation
	Computational simulation for disrupted-core behaviors

Takaki

Name	Naoyuki Takaki
Job Title	Professor

Education	Bachelor’s Degree, Nuclear Propulsion Engineering, Kobe University of Mercantile Marine, 1987
	Master’s Degree, Nuclear Engineering, Tokyo Institute of Technology, 1989
	Doctoral Degree, Nuclear Engineering, Tokyo Institute of Technology, 1992

Business/ Professional Career	Tokyo Electric Power Company (1992-2008)
	Kashiwazaki-Kariwa Nulear Power Plant
	Advanced Reactor Group, Nuclear Power Research & Development Center
	Strategic Planning Group, Head Office
	Nuclear Reactor Safety Engineering Group, Head Office
	Attached from TEPCO to
	Japan Atomic Power Company (1999)
	Japan Nuclear Fuel Cycle Development Institute (1999-2004)
	Nuclear Material Control Center (2004-2006)
	Visiting Associate Professor, Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology (2004-2008)
	Associate Professor, Department of Energy, Tokai University (2008-2010)
	Professor, Department of Nuclear Engineering, Tokai University (2010-2012)
	Professor, Department of Nuclear Safety Engineering, Tokyo City University (2012- )

Specialized Field	Nuclear Reactor Physics & Design
Specialized Field	Nuclear Transmutaion Applications

Basic Policy	Pursue ideal and realistic nuclear energy system that meets technical and sociological requirements from diverse aspects of resource, environment, safety, nuclear non- proliferation and public acceptance.
	Have a broad view on nuclear energy system including frontend to backend of the fuel cycle.
	Intend practically balanced studies by incorporating industrial sense of values into academia.

Areas of Interests	1) Advanced reactor concept
	Fast breeder reactor
	CANDLE reactor / Travelling wave reactor / Breed and burn reactor
	Water cooled thorium breeder reactor
	High temperature gas cooled reactor

	2) Nuclear transmutation
	Radioisotope production for medical use
	Nuclear Alchemy (Gold from Mercury)
	Transmutation of minor actinides (MA)
	Transmutation of long-lived fission products (LLFP)

	3) Thorium fuel
	Molten salt reactor
	Sustainable water cooled thorium reactor based on LWR technology
	Core design for effective use of thorium in LWR, FBR and HTR

	4) Accident tolerant fuel
	Core design of LWR using coated particle fuel

	5) Studies related to Fukushima accident
	Criticality analysis of fuel debris
	Molten fuel removal technology without re-criticality
	Neutron absorber material design for debris removal

	6) Cross cutting studies
	Strategic deployment scenario of advanced reactors and related nuclear facilities
	Cost analysis of nuclear energy system
	Proliferation resistant nuclear energy system
	Fuel loading pattern optimization using artificial bee colony (ABC) algorithm
	etc.

IMG_2220a

Name	Hiroki Takezawa
Job Title	Lecturer

Education	2005: Bachelor of science, Physics department, Tokyo University of Science.
	2007: Master of engineering, Nuclear engineering department, Tokyo Institute of Technology.
	2010: Doctor of engineering, Nuclear engineering department, Tokyo Institute of Technology.

Business/ Professional Career	2010 – 2014: EU-APWR project management engineer, Mitsubishi Heavy Industries.
	2014 – 2015: Reactor protection and control engineer, Mitsubishi Heavy Industries.
	2015 – 2016: Researcher, Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology.
	2016 – : Lecturer, Department of Nuclear Safety Engineering, Tokyo City University.

Specialized Field	Nuclear reactor physics, Nuclear reactor analysis, Nuclear battery design

Basic Policy	Takezawa laboratory was established in the Department of Nuclear Safety Engineering in April, 2016. Research interests of the laboratory have been in exploring innovative applications of nuclear energy for expanding the utilization of nuclear technology.

Areas of Interests	Criticality safety
	Criticality analysis of Fukushima Daiichi NPP fuel debris
	Development of Integral Kinetic Model with Delayed Neutrons Effect for Criticality Accident Analysis of Fukushisma Daiichi NPP Fuel Debris.
	Study on the statistical geometry model specific for mixture of fuel debris particles and water

	Nuclear battery
	Preliminary analysis of conversion efficiency of direct charge beta battery for experiments
	Comparison of theoretical efficiency between gamma battery and Compton battery
	Preliminary analysis of conversion efficiency of betavoltaic battery using Monte Carlo method

	Nuclear reactor analysis
	Study on conceptual design of reactor for direct nuclear energy conversion using FECs and natural convection cooling
	Depelopment of plant kinetics code for load-following operation by thermal reactors and fast reactors
	Fundamental neutronic analysis of coupled reactors/mixed spectrum reactors

	High performance computing
	Application of hybrid parallel compution/GPGPU technologies to advanced neutron transport Monte Carlo calculation

kwb

Name	Jun Kawarabayashi
Job Title	Professor

Education	Bachelor’s Degree, Nuclear Engineering, University of Tokyo, 1991
	Master’s Degree, Nuclear Engineering, University of Tokyo, 1993
	Doctoral Degree, QuantumEngineering and Systems Science, University of Tokyo, 1996

Business/ Professional Career	Assistant Professor, Naogya University, 1996-2004
	Associate Professor, Nagoya University, 2004-2015
	Professor, Tokyo City Univsersity, 2015-

Specialized Field:	Radiation Detector Engineering
	Application of Radiation Engineering

Basic Policy	Quantum brings information of nanoscale world to our usual world

Areas of Interests	Radiation Imaging
	Neutron Imaging
	Waveform Analysis for semiconductor detector
	Gamma Camera
	Backscattered X-ray Imaging

Name	Naoto Hagura
Job Title	Assistant Professor

Education	Bachelor’s Degree, Nuclear Engineering, Musashi Institute of Technology, 2005
	Master’s Degree, Nuclear Engineering, Musashi Institute of Technology, 2007
	Doctoral Degree, Nuclear Engineering, Musashi Institute of Technology, 2010

Business/ Professional Career	Hitachi Ltd. (Hitachi-GE Nuclear Energy, Ltd.) (2010-2013)
	Assistant, Atomic Enegy Research Laboratory, TOKYO CITY UNIVERSITY(2013-2015)
	Assistant Professor, Department of Nuclear Safety Engineering, TOKYO CITY UNIVERSITY(2015-)

Specialized Field	Accelerator Engineering
	Ion Beam Analysis
	Evaluation of Nuclear Data

Basic Policy

Areas of Interests	1) Accelerator Engineering
	Electrostatic Accelerators
	Cold cathode PIG negative ion source
	Beam transport

	2) Ion Beam Analysis
	PIXE (Particle Induced X-ray Analysis)
	RBS (Rutherford Backscattering)
	Proton Beam Irradiation

	3) Evaluation of Nuclear Data
	FP Decay Heat
	MA Decay Heat

Name	Hitoshi Muta
Job Title	Associate Professor

Education	Bachelor’s Degree, Applied Nucleus Engineering, Kyushu University, 1990
	Doctoral Degree, Course of Applied Marine Environmental Studies, Tokyo University of Marine Science and Technology, 2010

Business/」Professional Career	TOSHIBA CORPORATION(1990-2007)
	GAIA SYSTEM SOLUTION INC.(2007-2009)
	JAPAN NECULEAR ENERGY SAFETY ORGANIZATION(JNES)(2009-2013)
	Lecturer, Department of Nuclear Safety Engineering, TOKYO CITY UNIVERSITY(2013-2017)
	Associate Professor, Department of Nuclear Safety Engineering, TOKYO CITY UNIVERSITY(2017-)

Specialized Field	Nuclear Safety Engineering
	Probabilistic Risk Assessment
	Severe Accident Management

Basic Policy

Areas of Interests	1) Nuclear Safety Engineering
	Nuclear Safety Regulation
	Safety Enegineering for Nuclear Reactor and Facilities
	Safety Analysis

	2) Probabilistic Risk Assessment
	External Natural Hazard PRA
	Internal Events PRA
	System Reliability Analysis
	Dynamic Event Analysis
	Interaction Model for Strucure, Componet, System, Human, Infrastrucure and Envaironmental

	3) Severe Accident Management
	Accident Progression Analysis
	Accident Management
	Human Factor

Matsuura_F_HPa

Name	Haruaki Matsuura
Job Title	Associate Professor

Education	Bachelor’s Degree, Chemistry, Tokyo University of Science, 1990
	Doctoral Degree, Electronic Chemistry, Tokyo Institute of Technology, 1997


Business/ Professional Career	Assistant Professor, Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology(1994-2015)
	Visiting researcher, Univesity of Abertay Dundee(1998-1999)
	le STUDIUM Associate researcher, CEMHTI, CNRS(2006-2008)
	Associate Professor, Department of Nuclear Safety Engineering, Tokyo City University(2015-)

Specialized Field	Fuel cycle engineering
	Pyroelectrochemistry
	Backend chemistry

Basic Policy	Development of chemical decomissioning processes aided by synchrotron radiation and neutron source

Areas of Interests	1) Treatment of fuel debris
	Selectrive fluorination
	Molten salt electrolysis
	Thermoanalytical study

	2) Liquid waste decontamination
	Ion chromatographic separation of minor actinides
	Ammonia distillation
	Selective adsorption into zeolite
	Precipitation and distillation of salt waste treatment

	3) Nuclide migration
	Cesium penetration into concrete
	Structural analyses of various glasses
	Local structural analysis of fine alloys

isato

Name	Isamu Sato
Job Title	Professor

Education	Bachelor’s Degree, Applied Nucleus Engineering, Kyushu University, 1994
	Doctoral Degree, major in Nuclear Engineering, 1999

Business/ Professional Career	Researcher, Japan Atomic Energy Agency(1999-2015)
	Specially Appointed Associate Professor , Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology(2015-2017)
	Professor, Department of Nuclear Safety Engineering, Tokyo City University(2017-)

Specialized Field	Nuclear fuel engineering
	High temperature experimental research
	Irradiated fuel behavior
	Thermo chemistry

Basic Policy	The behavior of fission products in irradiated fuel will be evaluated for the release during severe accidents, fuel design, those utilizations.

Areas of Interests	1) Fission product direct utilization
	synthesis of metallic fission product particles
	thermal analyses (TG-DTA, DSC etc.)
	metallography(SEM, EPMA, XRD etc.)

	2) Cs penetration into structural materials
	Immersion of the materials into Cs containing solution
	Evaluation of diffusion and adsorption behavior
	CFD estimation of Cs penetration aspect

	3) Development of reactor core devices to prevent the over power of fast reactors
	Evaluation of fundamental material properties of various alloys
	Design of the device using appropriate alloys

web_Ohtori

Name	Yasuki Ohori
Job Title	Professor

Education	Bachelor’s Degree, Civil Engineering, Nagaoka University of Technology, 1988
	Master’s Degree, Civil Engineering, Nagaoka University of Technology, 1990
	Master of Bussiness Administration, Graduate school of Commerce, Waseda University, 2009

Business/ Professional Career	Central Research Institute of Electric Power Industry (1990-2017)
	– Research Engineer (1990-1997)
	– Principal Researcher (1997-2006)
	– Senior Researcher (2006-2014)
	– Depty Director (2014-2017)
	Postdoctral Research Associate, University of Notre Dame (1998-1999)
	Visiting Researcher, University of Tokyo (2006 -2008)
	Professor, Department of Nuclear Safety Engineering, Tokyo City University (2017-)


Specialized Field:	Earthquake Engineering
	Probabilistic Risk Assessment
	Risk Management

Basic Policy

Areas of Interests	External PRA
	Risk Management
	Seismic Design of Nuclear Power Plant
	Stochastic Analysis
	Seismic Isolation