TY - RPRT TI - Identification of important error fields in stellarators using the Hessian matrix method AU - Zhu, Caoxiang AU - Gates, David A. AU - Hudson, Stuart R. AU - Liu, Haifeng AU - Xu, Yuhong AU - Shimizu, Akihiro AU - Okamura, Shoichi PY - 2019 DO - 10.1088/1741-4326/ab3a7c UR - https://www.osti.gov/biblio/1567254 ID - 1567254 ER -