Converging Science for Sustainability
The 8th Japan-Thailand Bilateral Workshop | STT51-SYMPOSIUM
SP11: Radioecology & Environmental Radioactivity | AORA Workshop
11 - 13 November 2025
Abstract book
Agenda
11 November 2025
Registration
Opening remark
(Prof. Dr. Ikuo Kashiwakura, Hirosaki Univ.) and worm welcome remark (Assoc. Prof. Dr. Witaya Wannasuphoprasit, Dean of Faculty of Nuclear Engineering, Chulalongkorn Univ.)
Introduction to Department of Nuclear Engineering, Faculty of Engineering, Chulalongkorn Univ.
Introduction to Institute of Radiation Emergency Medicine, Hirosaki Univ. (Dr. Donovan Anderson)
Refreshment Break
Advancing Nuclear Science: From Education to Innovation [Chair: Dr. Thititip Tippayamontri, Ph.D., Chulalongkorn Univ., Thailand]
Invited speaker: Title: Nuclear Education Programs and Research Capabilities at Nuclear Engineering Department, CU, Assoc. Prof. Somboon Rassame, Chulalongkorn Univ., Thailand
Title: Design and Performance Evaluation of a Rod-Shaped Radioactive Surface Contamination Monitor for Inner Pipe Inspection, Mr. Ren Ichikawa, Kindai Univ., Japan
Title: Evaluation of Deconvolution Approach for Complex Alpha-Particle Spectra, Mr. Kirari Terasawa, Kindai Univ., Japan
Title: Development of Flexible and Transparent X-ray Shielding Composites by Dissolving Metals as Ions, Dr. Ryoma Tokonami, Yamagata Univ., Japan
Lunch
Environmental Radioactivity and Radiochemical Analysis [Chair: Phachirarat Sola, M.sc, TINT, Thailand]
Invited speaker: Title: Reconstruction of Ocean Circulation and Continental Inputs in the Indian Ocean: Insights from Nd Isotopes and Rare Earth Elements, Prof. Hirofumi Tazoe, IREM, Hirosaki Univ., Japan
Title: U-Th-Pb Analysis of Water Sample in Ex-Tin-Mining Area in Bangka, Indonesia, Mr. Radhia Pradana, Hirosaki Univ., Japan
Title: Establishment of a Determination Method for Sr-90 in Milk Powder Using Extraction Chromatography and LSC, Dr. Rusbani Kurniawan, BRIN, Indonesia.
Title: Soil Properties Assessment at the AIRID Training Center Coffee Field, Chiang Mai University, Thailand, Khemruthai Kheamsiri, Hirosaki Univ., Japan
Refreshment Break and Discussion
09:00 a.m. - 09:30 a.m.
09:30 a.m. - 09:45 a.m.
09:45 a.m. - 10:00 a.m.
10:00 a.m. - 10:15 a.m.
10:30 a.m. - 11:00 a.m.
11:00 a.m. - 11:20 a.m.
11:20 a.m. - 11:40 a.m.
11:40 a.m. - 12:00 p.m.
12:00 p.m. - 02:00 p.m.
02:00 p.m. - 02:30 p.m.
02:30 p.m. - 02:50 p.m.
02:50 p.m. - 03:10 p.m.
03:10 p.m. - 03:20 p.m.
03:30 p.m. - 04:00 p.m.
10:15 a.m. - 10:30 a.m.
Session 1
Session 2
Agenda
12 November 2025
Tritium and Water Environment Studies [Chair: Dr. Thawatchai Itthipoonthanakorn, Ph.D., OAP, Thailand]
Invited speaker: Title: Distribution and dynamics of Tritium in the environment, Prof. Naofumi Akata, IREM, Hirosaki Univ., Japan
Title: Development of Tritium Concentration Assessment Using the UFOTRI Model, Ms. Honoka Fukuda, Hirosaki Univ., Japan
Title: Study of Water Quality and Tritium Concentration in the Ukedo River Catchment, Fukushima Prefecture, Japan, Ms. Yuisa Kitayama, Hirosaki Univ., Japan
Title: Organically Bound Tritium Analysis of Marine Products in Fukushima Using Ultra-Sensitive Technique, Ms. Haruka Kuwata, Hirosaki Univ., Japan
Title: An Investigation of Terrestrial Tritium in Fukushima, Japan and Its Implication for Environmental Assessment, Prof. Dr. Shigekazu Hirao, Institute of Environmental Radioactivity, Fukushima University, Japan
Refreshment Break
Radon, Thoron, and Public Exposure Assessment [Chair: Chutima Kranrod, Ph.D., IREM, Japan]
Invited speaker: Title: UNSCEAR Report 2025: Evaluation of Public Exposure to Ionizing Radiation – Updated Global Assessment of Radon and Thoron, Prof. Masahiro Hosoda, Hirosaki Univ., Japan
Title: Determination of the Critical Group of Public Members Around Serpong Nuclear Facility for Atmospheric Releases in Normal Conditions Using Representative Person, Mr. Muhammad Muhyidin Farid, BRIN, Indonesia.
Lunch
Radon, Thoron, and Public Exposure Assessment [Chair: Chutima Kranrod, Ph.D., IREM, Japan]
Title: Computational Fluid Dynamics Investigation of Indoor Radon Distribution at Hat Yai Hot Spring Spa in Ranong Province, Thailand, Dr. Dumrongsak Rodphothong, Ramkhamhaeng Univ., Thailand.
Title: Investigation of Radon Concentration (Rn-222) in Geothermal Springs, the Southern Part of Thailand, Dr. Saroh Niyomdecha, OAP, Thailand
Title: Characterization of Mask Structure and Its Impact on Filtration of Radon Progeny Aerosols under Controlled Conditions, Ms. Yuna Sakai, Hirosaki Univ., Japan
Title: Assessment of Radon and Thoron Exposure in a Thai Tourist Cave: Implications for Occupational Health and Management, Ms. Phachirarat Sola, TINT, Thailand
Refreshment Break
Innovations in Radiation Detection and Dosimetry [Chair: Donovan Anderson, Ph.D., IREM, Japan]
Invited speaker: Title: Gold–Hydrogel Nanosensor: A next-generation biodosimetric tool, Dr. Thititip Tippayamontri, Chulalongkorn Univ., Thailand
Title: Bridging Environmental Radon Exposure to Human Health Risk: An Aerosol-Based Dosimetry Model for the Lungs, Mr. Rungroj Sakulnaeramit, Chulalongkorn Univ., Thailand
09:00 a.m. - 09:30 a.m.
09:30 a.m. - 09:50 a.m.
09:50 a.m. - 10:10 a.m.
10:10 a.m. - 10:30 a.m.
10:30 a.m. - 10:50 a.m.
10:50 a.m. - 11:05 a.m.
11:05 a.m. - 11:40 a.m.
11:40 a.m. - 12:00 p.m.
12:00 p.m. - 13:30 p.m.
Session 4 Part 2
01:30 p.m. - 01:50 p.m.
01:50 p.m. - 02:10 p.m.
02:30 p.m. - 02:50 p.m.
02:50 p.m. - 03:05 p.m.
03:05 p.m. - 03:35 p.m.
03:35 p.m. - 03:55 p.m.
Session 3
Session 4 Part 1
02:10 p.m. - 02:30 p.m.
Session 5
Agenda
13 November 2025
Radioisotopes and Radiation Applications [Chair : Dr. Eka Djatnika Nugraha, Ph.D., BRIN, Indonesia]
Invited speaker: Title: Role of radioisotopes as diagnostic tools for Industrial process trouble shooting applications in Thailand, Dr. Dhanaj Saengchantr, Chulalongkorn Univ., Thailand
Title: The preliminary development of Cesium Iodide-based thin film for alpha radiation detection, Ms. Khemipa Sanklaa, Chulalongkorn Univ., Thailand
Title: Application of a NaI(Tl) Detector System for Ground Truthing Radiometric Mapping in Mamuju, Indonesia, Dr. Agus Nur Rachman, BRIN, Indonesia.
Title: Estimation of 137Cs Activity on Cultivated Land for Erosion Studies in the Upper Citarum Watershed: A Physicochemical Soil Properties Approach, Dr. Leons Rixson, BRIN, Indonesia.
Refreshment Break
Radioisotopes and Radiation Applications [Chair :Dr. Rawiwan Kritsananuwat, Ph.D., Chulalongkorn Univ, Thailand.]
Title: Improvement of oxidation stability of biodiesel derived from palm oil via partial hydrogenation using dielectric barrier discharge plasma with crude glycerol as hydrogen donor, Ms. Watcharaporn Pattanasriroj, Chulalongkorn Univ., Thailand
Title: Radionuclides in Dust from the Eruption of Mount Merapi, Yogyakarta, Indonesia, Mr.Wahyudi, BRIN, Indonesia.
Title: Assessment of Health Risks Linked to Natural Radionuclides Contained in Vegetables from Ex-Mining and Non-Mining Land, Mr. Evans Azka Fajrianshah, BRIN, Indonesia.
Closing remarks; (Prof. Dr. Shinji Tokonami, IREM, Hirosaki Univ.)
Lunch
AORA executive meeting (In-person and online)