@article{oai:nifs-repository.repo.nii.ac.jp:00010699,
 author = {YANAGI,  Nagato and GOTO,  Takuya and TAMURA,  Hitoshi and MIYAMZAWA, Junichic and SAGARA,  Akio},
 issue = {Special Issue1_ITC25},
 journal = {Plasma and Fusion Research},
 month = {Apr},
 note = {0000-0002-4489-8241, An innovative idea is proposed for enlarging the blanket space on the inboard side of the torus for the helical fusion reactor FFHR-d1. A set of sub-helical coils, named NITA coils, with opposite-directed current outside the main helical coils, effectively reduces the helical pitch parameter and enlarges the blanket space. Dependence of the blanket space and plasma volume on the effective helical pitch parameter is examined. The obtained magnetic surfaces and their properties are compared with that of the original configuration.},
 title = {NITA Coil—Innovation for Enlarging the Blanket Space in the Helical Fusion Reactor},
 volume = {11},
 year = {2016}
}