One of the Physics doctoral students from UGM, Rahmat Setyo Yuliatmoko, also participated in the International Conference on Science and Technology (ICST) on November 1-2, 2023. The 9th edition of the International Conference on Science and Technology (ICST) provided an ideal academic platform for researchers to present their latest research findings and discuss emerging technologies and directions in the fields of science, engineering, and natural sciences.