Nuclear and Radiation Safety Major
Wasin VECHGAMA 와신웨즈가마
Email : wasin {at} ust.ac.kr, wasin {at} kaeri.re.kr, wasin {at} tint.or.th
Current Position
2022 ~ present Ph.D. Candidate, Nuclear and Radiation Safety, UST-KAERI
2017 ~ 2021 Nuclear Engineer (Practitioner Level), Nuclear Technology R&D Center, TINT2021 ~ present Nuclear Engineer (Professional Level), Nuclear Technology R&D Center, TINT
Research Interests
Human Reliability Analysis (HRA), Probabilistic Safety Assessment (PSA), Severe Accident, and Public Perception
Education
2015 B.S. Chemical Engineering, Chulalongkorn University (CU)
2017 M.S. Nuclear Engineering, Chulalongkorn University (CU)
Work Experience
2014 ~ 2024 Internship Engineering Student for Jotun Thailand Laboratory
Projects
(On-going)
2021 ~ Present, Risk Assessment from Radiation Consequences to Environment of Nuclear Facility in Thailand, Funding from Thailand Science Research and Innovation (TSRI).
2021 ~ Present, Development of Atmospheric Radiation Monitoring Approach to Measure Radiation Abnormality, Funding from Thailand Science Research and Innovation (TSRI).
(Completed)
2019 ~ 2021, Enhancing ASEAN Research Competency in Nuclear Power Emergency Preparedness and Response, Funding from ASEAN Science and Technology Innovation Fund (ASTIF).
2019 ~ 2020, Probabilistic Safety Assessment of Thai Research Reactor-1/Modification 1 (TRR-1/M1), Funding from Thailand Institute of Nuclear Technology (Public Organization).
2020 ~ 2021, Enhancement of TINT Research Capability to be the Leader of ASEAN Network on Nuclear Power Safety Research, Funding from Thailand Institute of Nuclear Technology (Public Organization).
2020 ~ 2021, Assessments of Strengths and Weaknesses of Safety Research of Nuclear Power Plants in ASEAN Region, Funding from Ministry of Higher Education, Science, Research and Innovation.
Publication
Google Scholar: https://scholar.google.com/citations?user=hUTYd6gAAAAJ&hl=th
Research Gate: https://www.researchgate.net/profile/Wasin-Vechgama/research
(International Journal)
W. Vechgama*, C. Dararutana, A. Pechrak, S. Wetchagarun, W. Sasawattakul, K. Silva, “Development of cyber risk analysis framework for core computational system of TRIGA reactor using graded approach”, Annals of Nuclear Energy 197, 110281, 2024.
W. Vechgama*, W. Sasawattakul, K. Silva, “2009–2022 Thailand public perception analysis of nuclear energy on social media using deep transfer learning technique” Nuclear Engineering and Technology 55(6), Pages 2026-2033, 2023.
W. Vechgama*, K. Silva, “Survey analysis of potential nuclear safety research of Thailand for international research collaborative reinforcement in the 2020s”, Journal of Nuclear Engineering and Radiation Science, 2023.
N. Khunsrimek, W. Vechgama, K. Silva, S. Rassame, T. Hibiki, “Simulation using representative data selection for transboundary radiation effect evaluation by Nuclear Accident Consequence Analysis Code (NACAC)”, Journal of Nuclear Science and Technology, 2023.
N. Khunsrimek, P. Krisanungkura, W. Vechgama, K. Silva, S. Rassame, T. Hibiki, “Verification of the NACAC Atmospheric Dispersion Calculation using a Hypothetical Accident in a Neighboring Nuclear Power Plant”, Progress in Nuclear Energy, 104532, 2023.
W. Vechgama*, K. Silva, S. Wetchagarun, A. Pechrak, “Application of Hazard and Operability Technique to Level 1 Probabilistic Safety Assessment of Thai Research Reactor-1/Modification 1: Internal Events and Human Errors”, Progress in Nuclear Energy, 103838, 2021.
W. Vechgama*, K. Silva, “Assessment of Cesium Compounds Behavior during Simultaneous Failure of Reactor Pressure Vessels and Spent Fuel Pools using Modified ART Mod 2: Fukushima Daiichi Accident Simulation”, Science and Technology of Nuclear Installations, Volume 2021, Article ID 9975014, 2021.
K. Silva, P. Krisanungkura, N. Khunsrimek, W. Vechgama, J. H. Tang, V. Krishnan, K. L. Pham, T. Charnock, S. Rassame, B. K. Tay, K. Y. Chung, S. Th. Hoang, H. Q. Nguyen, D. H. Pham, “Inter-comparison of transboundary atmospheric dispersion calculations: a summary of outputs from the ASEAN NPSR benchmark exercise”, Progress in Nuclear Energy 135, 103718, 2021.
K. Silva, W. Vechgama, “Consideration of Change over Time in Nuclear Accident Consequence Assessment to Support Optimization of Long-term Remediation Strategy”, Nuclear Engineering and Design 373, 111022, 2021.
W. Vechgama*, “Investigation of Differences of Phenomena of Diffusiophoresis and Thermophoresis from Aerosol Deposition in Modified ART Mod 2 Code”, IOP Journal of Physics: Conference Series, 2019.
W. Vechgama*, K. Silva, S. Rassame, “Validation of Modified ART Mod 2 Code through Comparison with Aerosol Deposition of Cesium Compound in Phébus FPT3 Containment Vessel”, Science and Technology of Nuclear Installations, Volume 2019, Article ID 4081943, 2019.
(International Conference)
W. Vechgama, K. Silva, J. Yang, J. Park, “Initiating Risk Assessment Research Collaboration Between South Korea and ASEAN NPSR Member States”, Asian Symposium on Risk Assessment and Management 2023, Hong Kong, 4-6 December 2023.
W. Vechgama, J. Park, S. Wetchagarun, A. Pechrak, K. Silva, “Systematic preprocessing for development of human reliability analysis framework of TRIGA reactor”, Asian Symposium on Risk Assessment and Management 2023, Hong Kong, 4-6 December 2023.
K. Silva, W. Vechgama, P. Janta, “Applying the Concept of Resilience and Global Catastrophic Risk Assessment to Address High-Impact Low-Frequency Events in Nuclear Power Plant Risk Assessment”, Asian Symposium on Risk Assessment and Management 2023, Hong Kong, 4-6 December 2023.
P. Janta, K. Silva, W. Vechgama, “Examining Reliability of Criteria for Categorization of Public Comments on Thailand’s Social Media for Deep Learning Studies”, Asian Symposium on Risk Assessment and Management 2023, Hong Kong, 4-6 December 2023.
P. Janta, K. Thapmanee, K. Vithean, N. Chollacoop, W. Vechgama, T. Takata, T. Narukawa, K. Silva, “Differences in Assumptions, Inputs, and Outputs between Energy Resilience Assessments for Renewable Energy and Nuclear Power Systems”, Asian Symposium on Risk Assessment and Management 2023, Hong Kong, 4-6 December 2023.
W. Vechgama, J. Cho, “Investigation of Starting Time Characteristics of Source Term Release for Dissimilar Nuclear Accident Consequence”, 20th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, Washington, D.C., 20 – 25 August 2023.
W. Vechgama, W. Sasawattakul, K. Silva, J. Cho, “Investigation of Data Pre-Processing Step of Classification Model Development for Understanding Nuclear Energy Public Perception In Thailand”, Asian Symposium on Risk Assessment and Management 2022, Daejeon, Korea, 31 November - 2 December 2022.
W. Vechgama, J. Cho, “Application of Goodness-of-fit And Wilks’ Methods to Uncertainty Analysis of Cesium-137 Release due to Early Containment Failures of OPR-1000”, Asian Symposium on Risk Assessment and Management 2022, Daejeon, Korea, 31 November - 2 December 2022.
C. Dararutana, W. Vechgama, S. Polthum, P. Rintarak, N. Changkit, “Communication Program for Safety Culture Improvement of Thailand Institute of Nuclear Technology”, International Youth Nuclear Congress 2022, Koriyama, Fukushima, Japan, 27 November - 2 December, 2022.
K. Waree, W. Vechgama, “Radiological Atmospheric Dispersion Assessment from Wind Characteristic Variation during Hypothetical Research Reactor Accident using HotSpot Health Physics Code”, International Youth Nuclear Congress 2022, Koriyama, Fukushima, Japan, 27 November - 2 December, 2022.
W. Vechgama, K. Silva, C. Dararutana, T. Kwamman, P. Krisanangkura, “Consideration of Potential Nuclear Safety Research between Thailand and the ASEAN NPSR Member States”, International Youth Nuclear Congress 2022, Koriyama, Fukushima, Japan, 27 November - 2 December, 2022.
W. Vechgama, W. Sasawattakul, K. Silva, J. Cho, “Development of Classification Model for Public Perception of Nuclear Energy in Social Media Platform using Machine Learning: Facebook Platform in Thailand”, the 16th Probabilistic Safety Assessment and Management, Honolulu, Hawaii, 26 June - 1 July, 2022.
C. Krittasin, W. Vechgama, K. Silva, S. Rassame, “Determination of Thermal-hydraulic Conditions of Loss of Cooling Accident in Spent Fuel Pool of the Fukushima Daiichi Nuclear Power Plant Unit 4”, the 3rd International Conference on Environment, Livelihood and Services, Bangkok, Thailand, 14 – 16 March 2022.
W. Vechgama, C. Dararutana, A. Pechrak, S. Wetchagarun, K. Silva, “Consideration of Cybersecurity Analysis Approach of Instrumentation and Control System of Thai Research Reactor-1/Modification 1 under Probabilistic Risk Assessment ”, Asian Symposium on Risk Assessment and Management 2020, Kyoto, Japan, 30 November - 2 December 2020.
W. Vechgama, K. Silva, A. Pechrak, S. Wetchagarun, “Application of Bayesian Statistics to Probabilistic Safety Assessment of Thai Research Reactor-1/ Modification 1”, the 30th European Safety and Reliability Conference and the 15th Probabilistic Safety Assessment and Management Conference, Venice, Italy, 1 - 6 November 2020.
K. Silva, W. Vechgama, N. Khunsrimek, S. Rassame, P. Krisanangkura, S. Udomsomporn, “Systematic Approach to Transboundary Atmospheric Dispersion Assessment of a Hypothetical Release from a Nuclear Power Plant”, International Youth Nuclear Congress 2020, Sydney, Australia, 8-14 March 2020.
W. Vechgama, K. Silva, “Integration of Fission Product Release Analysis from Reactor Pressure Vessel and Spent Fuel Pool in Modified ART Mod 2”, International Youth Nuclear Congress 2020, Sydney, Australia, 8-14 March 2020.
N. Khunsrimek, K. Silva, P. Krisanungkura, W. Vechgama, S. Rassame, “Verification of Long-Range Dispersion Calculation by Nuclear Accident Consequence Assessment Code (NACAC) using JRODOS”, Asian Symposium on Risk Assessment and Management 2019, Gyeongju, Korea, 30 September - 2 October 2019.
W. Vechgama, K. Silva, S. Wetchagarun, A. Pechrak and S. Rassame, “Human-Hazard and Operability Analysis for Probabilistic Safety Assessment of Thai Research Reactor-1/Modification 1”, Asian Symposium on Risk Assessment and Management 2019, Gyeongju, Korea, 30 September - 2 October 2019.
W. Vechgama, K. Silva, C. Kittasin and S. Rassame, “Application of Modified Art Mod 2 Code to Fission Product Behavior Analysis for Spent Fuel Pool of Nuclear Power Plant”, IAEA Technical Meeting on the Phenomenology, Simulation and Modelling of Accidents in Spent Fuel Pools, Vienna, Austria, 2 - 5 September 2019.
W. Vechgama, K. Silva, S. Wetchagarun, A. Pechrak and S. Rassame, “Identification of Reactor Specific Initiating Events using Hazard and Operability Analysis for Probabilistic Safety Assessment of Thai Research Reactor-1/Modification 1”, the European Research Reactor Conference 2019, Dead Sea, Jordan, 24 - 28 March 2019.
K. Silva, W. Vechgama, “R&D Activities to Be Conducted by TSO in Embarking Countries: R&D to Support Understanding of Severe Accident and Planning of Emergency Response” IAEA TSO Conference CN266, Brussels, Belgium, 15-18 October 2018.
K. Silva, W. Vechgama, “Incorporating Scientific Research Outputs into Emergency Preparedness and Response Planning: Two Case Studies on Nuclear Accident Consequence Assessment” 2018 Southeast Asia Disaster Risk Governance Academic Seminar, Bangkok, Thailand, 24-26 September 2018.
K. Silva, W. Vechgama, “Application of Resilience Metrics to Nuclear Accident Consequence Assessment” 14th Probabilistic Safety Assessment and Management, Los Angeles, California, United State, 16-21 September 2018
W. Vechgama, K. Silva, “Study of Fission Product Behavior in Containment Vessel using Modified ART Mod 2: Update of Cesium and Iodine Compound Models”, 26th International Conference on Nuclear Engineering, London, England, 22-26 July 2018
W. Vechgama, K. Silva, “Phenomena Identification and Ranking Table (PIRT) for Volatile Fission Product Behavior in Containment Vessel”, Asian Symposium on Risk Assessment and Management 2017, Yokohama, Japan, 13-15 November 2017
N. Khunsrimek, W. Vechgama, S. Rassame, K. Silva, “Effects of Radionuclide Atmosphere Dispersion from a Hypothetical Severe Accident at Fangchenggang and Ninh Thuan Nuclear Power Stations to Thailand”, Asian Symposium on Risk Assessment and Management 2017, Yokohama, Japan, 13-15 November 2017
W. Vechgama, K. Silva, “Comparison of Modified ART Mod 2 Code with Phébus FPT-3 Experiment: Evaluation of Volatile Aerosol Behaviors in Containment Vessel, 17th International Topical Meeting on Nuclear Reactor Thermal Hydraulics”, Xi’an, Shaanxi, China, 3-8 September 2017
K. Silva, W. Vechgama, “Recommendations for Future Research on Nuclear Accident Consequence Analysis” International Conference on Risk Analysis, Decision Analysis and Security 2017, Beijing, China, 21-23 July 2017
W. Vechgama, K. Silva, S. Rassame, “Investigation and Modification of Aerosol Deposition Model of ART Mod 2 using Experimental Data from NSPP-502 and Phébus FPT1”, 11th International Topical Meeting on Nuclear Thermal-Hydraulics, Operation and Safety, Gyeongju, Korea, 9-13 October 2016
Professional Activities
(2023~present) Main International Project Coordinator on the 1st phase on Human Reliability Analysis benchmark survey on operating culture profile of NRRs, ASEAN Network on Nuclear Power Safety Research (ASEAN NPSR) .
(2023~present) Project Leader on Human Reliability Analysis of Thai Research Reactor-1/Modification, Thailand Institute of Nuclear Technology (Public Organization).
(2019-present) National Coordinator (Thailand) on International Project on Innovative Nuclear Reactors and Fuel Cycles (INPRO), International Atomic Energy Agency (IAEA).
(2019~present) Project Leader on Probabilistic Safety Assessment of Thai Research Reactor-1/Modification, Thailand Institute of Nuclear Technology (Public Organization).
Keynote and Guest Lecture
Guest Lecture: 2111310 Nuclear Reactor Safety: Introduction of Nuclear Safety Analysis and Probabilistic Safety Assessment, Department of Nuclear Engineering, Faculty of Engineering, Chulalongkorn University, 2020-2023.
Guest Lecture: 3705102 Radiation Daily Life: Clean Energy of Nuclear Power Station Department of Radiological Technology and Medical Physics, Faculty of Allied Health Sciences, Chulalongkorn University, 2021.
Guest Lecture: 2111704 Seminar in Nuclear Technology: Spent Fuel Pool (SFP), Department of Nuclear Engineering, Faculty of Engineering, Chulalongkorn University, 2019.
Teaching Experience
Co-Advisers on Master Thesis: Assessment on Released Fission Product Behavior in Spent fuel pool of Fukushima Daiichi Nuclear Power Plant Unit 4 using Modified ART Mod 2 Code, Department of Nuclear Engineering, Faculty of Engineering, Chulalongkorn University
Honors and Awards
1st Runner Up: Digital Log Book Improvement Project, Working Process Development Competition, Thailand Institute of Nuclear Technology (Public Organization), 2023.
