It is my great pleasure and honor to extend a warm invitation to you to attend the 11th International Symposium on Radiation Safety and Detection Technology (ISORD-11) to be held at Hanyang University in Seoul, Korea from July 4 to 7, 2023.

The ISORD symposium was jointly invented by Hanyang University (Korea), Tohoku University (Japan), and China Institute for Radiation Protection (China) in 2001, aiming to provide an international platform in which participants can exchange their views and information on radiation safety and detection technology and also address general issues in radiation protection. Since its first conference in Seoul, it has been successfully held nine times in Korea, Japan, and China and one in Malaysia. The upcoming ISORD-11 is expected to bring together about 300 participants including international experts in radiation safety and detection, industry executives, governmental officials from all around the world. The ISORD-11 is the fourth symposium to be held in Korea, offering high-level technical activities including keynote speeches, research presentation sessions, and educational sessions. The accepted full papers of the ISORD-11 will be recommended to be published in Journal of Radiation Protection and Research (JRPR), a SCOPUS-indexed journal which is operated by Korea, Japan, and Australia radiation protection societies.

I hope you join the ISORD-11 in Seoul, the capital and largest metropolis of Korea. Situated on the Han River, Seoul is surrounded by beautiful mountains, the tallest being Mt. Bukhansan, the world's most visited national park per square foot. The Seoul Capital Area contains five UNESCO World Heritage Sites. Modern landmarks include the iconic N Seoul Tower, the gold-clad 63 Building, the neo-futuristic Dongdaemun Design Plaza, Lotte World, the world's largest indoor theme park, Moonlight Rainbow Fountain, the world's longest bridge fountain and the Sevit Floating Islands. Seoul was named the 2010 World Design Capital. It is the birthplace of K-pop and the Korean wave, as it is the heart of Korean culture and massive medias, entertainment firms, and broadcasters. The New York Times selected Seoul as one of the top three "must visit" cities of the world.

I look forward to welcoming all participants of the ISORD-11 and discussing radiation safety and detection technology. I hope you will enjoy your stay in Seoul, as well.

With warm regards,