12th Japan-Korea Symposium on
     Nuclear Thermal Hydraulics and Safety (NTHAS12)

    Nov. 9-11, 2020, Yokohama, Japan

Organizing Committee of NTHAS12 is monitoring the Coronavirus (COVID-19) situation to ensure the health and safety of our meeting and participants, as well as our staff. We will also be monitoring the recommendations from the Ministry of Health, Labor and Welfare, Japan and the World Health Organization (WHO) as the situation progresses.

As of this date, the conference is currently scheduled to take place. Please continue your work in the expectation that the conference will be held as initially scheduled. Up to now the situation regarding COVID-19 outbreak has been well stabilized in Korea and Japan. However, it may be still difficult for some researchers or students to make decision due to various uncertainties in the COVID-19 situation and safe travel to participate this meeting.

After careful consideration, the NTHAS12 Organizing and Technical Program Committees have decided to postpone the deadline of abstract submission for “extended abstract presentation (no peer review)” to July 3, 2020. The abstract submission for “full-paper presentation (with peer review)” was already closed, but the deadline of draft paper submission for review was postponed to July 17, 2020. The new deadlines are shown below. If there are any changes to these plans, we will provide updates on this website. Please check back periodically.

What's New

• May 24, 2020: Key deadlines extended!  NEW! 
• May 07, 2020: Simposium Flyer of Student Seminar is added. See Student Seminar page.
• Jan. 27, 2020: Submission of abstract has opened. See File Submission page.
• Jan. 17, 2020: Website opened.

Call for Papers

Call for Papers (Revised: Mar. 31. PDF, 477kB)


Japan and Korea are the two leading countries designing and building up-to-date nuclear power plants in the World. In the hopes to contribute to the nuclear system performance with enhanced safety, the thermal-hydraulics divisions of Atomic Energy Society of Japan and Korean Nuclear Society initiated a biennial symposium program across the sea: Japan-Korea Symposium on Nuclear Thermal Hydraulics and Safety (NTHAS). Since the first symposium (NTHAS1) in Busan, Korea in 1998, NTHAS has provided a unique opportunity to discuss up-to-date technical information and to interact with colleagues from the neighboring countries. The second to ninth meetings were held in Fukuoka (2000), Gyeongju (2002), Sapporo (2004), Jeju (2006), Okinawa (2008), Chuncheon (2010), Beppu (2012), Buyeo (2014), Kyoto (2016) and Busan (2018) with great success in technical quality and number of participants. In 2020, the 12th Japan-Korea Symposium on Nuclear Thermal Hydraulics and Safety (NTHAS12) will be held in Yokohama, Japan. The official language of the symposium is English.

Abstract Submission

Authors should submit their abstracts of 400 to 500 words by April 10, 2020 through the symposium website. The Technical Program Committee will referee the submitted abstracts and select the papers to be presented at the symposium. Authors will be notified of selection by April 30, 2020. Draft papers will be required by June 19, 2020, for review.
(See File Submission page.)

Key Deadlines

(1) Full-paper presentation (with peer review)
 Abstract submission April 10   May 15, 2020
 Notification of abstract acceptance April 30   May 30, 2020
 Draft paper submission for review June 19   July 17, 2020
 Notification of paper acceptance August 21, 2020
 Final paper submission September 18, 2020
(2) Extended abstract presentation (No peer review)
 Abstract submission April 10   May 15   July 3, 2020
 Notification of abstract acceptance April 30   May 30   July 17, 2020
 Extended abstract submission September 18, 2020