TY - RPRT TI - Observation of significant non-collisional ion heating in helical plasmas with dominant electron heating by neutral beam injection on LHD AU - Toi, Kazuo [National Institute for Fusion Science] (ORCID:0000000282448305) AU - Morita, Shigeru [National Institute for Fusion Science] (ORCID:0000000341397721) AU - Tanaka, K [National Institute for Fusion Science] AU - Shimizu, Akihiro [National Institute for Fusion Science] (ORCID:0000000337643184) AU - Nishiura, Masaki [National Institute for Fusion Science] (ORCID:0000000227523333) AU - Ogawa, Kunihiro [National Institute for Fusion Science] (ORCID:0000000345551837) AU - Pablant, Novimir Antoniuk [Princeton Plasma Physics Laboratory] (ORCID:0000000166178459) AU - Spong, Donald A. [Oak Ridge National Laboratory] AU - Tokuzawa, Tokihiko [National Institute for Fusion Science] AU - Yamada, Ichihiro [National Institute for Fusion Science] AU - Yoshinuma, M [National Institute for Fusion Science] PY - 2026 DO - 10.1088/1741-4326/ae9e49 UR - https://www.osti.gov/biblio/3625685 ID - 3625685 ER -