@techreport{oai:nifs-repository.repo.nii.ac.jp:00009612,
 author = {"Hayashi,  T. and Sato,  T. and Takei,  A."},
 month = {Feb},
 note = {Three dimensional equilibrium and breaking of magnetic surfaces due to the finite beta effect in a 1=2 heliotron/torsatron configuration are studied by using a newly developed three-dimensional equilibrium code.  The breaking is significantly suppressed as gamma_ c (pitch parameter) becomes smaller.  An inward shift of the plasma by using the vertical field and elliptic (vertical) shaping using the quadrupole field can also suppress the breaking.},
 title = {Three Dimensional Studies of Helical Equilibria adn Magnetic Surface Breaking Due to the Finite Beta Effect},
 year = {1990}
}