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Risk and Decision Sciences

Mike Toyooka

Mike Toyooka

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352

Biography

Mr. Toyooka is an Engineer with a BS in Mechanical engineering. He has over 15 years of experience working as a safety analyst and design engineer. He has experience in hazard analysis, accident analysis, authorization basis development, risk assessment, and system engineering. He has performed hazard and accident analyses for U.S. Department of Energy facilities. He has developed Standard Technical Specifications for U.S. Nuclear Regulatory Commission (NRC). He has supported Fukushima Daiichi NPP risk assessment for Japan’s Nuclear Damage Compensation Facilitation Corporation (NDF).

Research Interests

  • Process hazard analysis
  • Risk assessments
  • Safety analysis
  • Accident analysis
  • Technical safety requirements
  • Safety basis development

Education and Credentials

  • B.S., Mechanical Engineering, Washington State University, 2002

Awards and Recognitions

  • 2009 - Outstanding Performance Award, RPL Upgraded 325 Building Safety Basis Documents
  • 2010 - Outstanding Performance Award, PDCF Project
  • 2013 - Outstanding Performance Award, WTP Documented Safety Analysis Development

PNNL Publications

2012

  • Unwin S.D., P.P. Lowry, and M.Y. Toyooka. 2012. "RELIABILITY MODELS OF AGING PASSIVE COMPONENTS INFORMED BY MATERIALS DEGRADATION METRICS TO SUPPORT LONG-TERM REACTOR OPERATIONS." Nuclear Science and Engineering 171, no. 1:69-77. PNNL-SA-78802.

2011

  • Unwin S.D., P.P. Lowry, and M.Y. Toyooka. 2011. "A Methodology Supporting the Risk-Informed Management of Materials Degradation." In Proceedings of the 2011 American Nuclear Society Winter Meeting and Nuclear Technology Expo, October 30-November 3, 2011, Washington DC. La Grange Park, Illinois:American Nuclear Society. PNNL-SA-80413.
  • Unwin S.D., P.P. Lowry, M.Y. Toyooka, and B.E. Ford. 2011. "DEGRADATION SUSCEPTIBILITY METRICS AS THE BASES FOR BAYESIAN RELIABILITY MODELS OF AGING PASSIVE COMPONENTS AND LONG-TERM REACTOR RISK." In Proceedings of the ASME 2011 Pressure Vessels & Piping Conference (PVP2011), July 17-21, 2011, Baltimore, Maryland, Paper No. PVP2011-58073. New York, New York:ASME. PNNL-SA-78798.

2010

  • Unwin S.D., P.P. Lowry, and M.Y. Toyooka. 2010. "A New Class of Risk-Importance Measures to Support Reactor Aging Management and the Prioritization of Materials Degradation Research." In 10th International Probabilistic Safety Assessment & Management Conference - PSAM10, June 7-11, 2010, Seattle, WA. Mannheim:International Association for Probabalistic Safety Assessment & Management (IAPSAM). PNNL-SA-70455.
  • Unwin S.D., P.P. Lowry, and M.Y. Toyooka. 2010. "COMPONENT DEGRADATION SUSCEPTIBILITIES AS THE BASES FOR MODELING REACTOR AGING RISK." In 2010 Pressure Vessels & Piping Conference (PVP 2010): Pressure Vessel Technology for Energy Challenge, Paper No. PVP2010-25750. New York, New York:American Society of Mechanical Engineers. PNNL-SA-71292.

2009

  • Unwin S.D., P.P. Lowry, and M.Y. Toyooka. 2009. "Informing Reactor Aging Management by Extended Risk Methodology." Transactions of the American Nuclear Society 101, no. 1:1047-1048. PNNL-SA-66915.

Risk and Decision Sciences

Additional Information