*Kaito KAMIYAMA¹, Takeshi TOYAMA², Koji INOUE², Yasuyoshi NAGAI², Koichi SATO³, Diancheng GENG¹, Yasuyuki OGINO², Hao YU², Sosuke KONDO², Ryuta KASADA² (1. Engineering, Tohoku Univ. (graduate), 2. Institute for Materials Research, Tohoku Univ., 3. Science and Engineering, Kagoshima Univ.)

*KOTA MIZUGUCHI¹, JUNICHI MIYAZAWA³, YASUYUKI OGINO², HAO YU², SOSUKE KONDO², RYUTA KASADA² (1. Graduate School of Engineering:Tohoku Univ., 2. Institute for Materials Research: Tohoku University, 3. Helical Fusion)

*Ibuki Sato¹, Takahide Haneda², Mikito Ueda³, Hisayoshi Matsushima³ (1. Hokkaido Univ. (Graduate student), 2. Sumitomo Mitsui Trust Bank, 3. Hokkaido Univ.)

*Naoya Yonai¹, Katsuhiko Nonaka¹, Akira Yamaguchi¹ (1. Iwate Univ.)

*Chika SEGAWA¹, Akira YAMAGUCHI¹ (1. Iwate Univ.)

*Yuki Hamasaki¹, Kayoko Yanagi¹, Yoji Miyajima¹, Toshihiko Sasaki¹, Kazuhiro Ishikawa¹ (1. Kanazawa Univ.)

*Souta Inoue¹, Masafumi Matsushita¹, Tomoki Iio¹, Reo Miyazaki¹, Kenta Nakahara², Satoshi Iikubo², Reina Utsumi³, Yuki Nakahira³, Hiroruki Saitoh³ (1. Ehime University, 2. Kyusyu University, 3. QST)

*Sho KANEKO¹, Chihiro IWAMOTO¹, Kaito ICHIKAWA¹, Teruyuki IKEDA¹, Kaito MONOE¹, Kensuke HAMADA² (1. Ibaraki Univ, 2. Ultrasonic Engineering Co.,Ltd.)