Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MOHRI Akihiro,Determination of Pitch Angles of Magnetic Field Lines in Tokamak with Obliquely Injected Helium Beam,Research report,04694732,National Institute for Fusion Science,1987-04,825,,1-17,https://cir.nii.ac.jp/crid/1570572701838302848,