Japan Geoscience Union Meeting 2024

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[J] Oral

H (Human Geosciences ) » H-CG Complex & General

[H-CG21] Monitoring the Comprehensive Nuclear-Test-Ban Treaty: Status, operations, and scientific application

Mon. May 27, 2024 3:30 PM - 4:45 PM 301A (International Conference Hall, Makuhari Messe)

convener:Dirk Metz(Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization), Akiko FURUNO(Japan Atomic Energy Agency), Hiroyuki Matsumoto(Japan Agency for Marine-Earth Science and Technology), Takayuki Otsu(Japan Weather Association), Chairperson:Dirk Metz(Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization), Hiroyuki Matsumoto(Japan Agency for Marine-Earth Science and Technology), Takayuki Otsu(Japan Weather Association), Akiko FURUNO(Japan Atomic Energy Agency)

4:15 PM - 4:30 PM

[HCG21-04] Upgrade of the noble gas monitoring system SAUNA installed at the IMS Radionuclide Station Takasaki to SAUNA III

*Kurihara Toshiyuki1, Shinichi Sakurai2, Yoichi Yamamoto1, Akiko FURUNO1, Yutaka Tomita1 (1.Japan Atomic Energy Agency, 2.Growth Industry Create Corporation)

Keywords:CTBT, CTBT International Monitoring System, SAUNA system

Our team at JAEA has been operated the Radionuclide station Takasaki (RN38) as a part of the International Monitoring System (IMS) for the Comprehensive Nuclear-Test-Ban Treaty (CTBT). RN38 has two monitoring system, one is for radioactive particles and the other is for noble gases. The noble gas monitoring system, JPX38 (SAUNA-II), was installed at RN38 in December 2006, after North Korea's first nuclear test. JPX38 was upgraded to the latest SAUNA system (SAUNA-III) with improved performance including temporal resolution, in May 2023. Our team is working with CTBTO, and the developer of SAUNA system have been cooperating to conduct the process for revalidation of JPX38 from June 2023 to the present. We report on the installation and trial run of SAUNA-III.