1977•Institutional Repositories DataBase (IRDB)Open access
A small tokamak 'Nova II'
M. Fukao, Yukio Fujiwara, H. Zushi, Hidetoshi Suemitsu, Y. Terumichi, Hiroshi Nishihara
Open full text 0 citations
Abstract
A small tokamak, NOVA II, has been designed and constructed. The major radius is 30 cm, the minor radius 6 cm and the maximum toroidal field 15 kG. The device has a removable shell assembly for studying the stabilizing effect of a conductive shell. The basic concept of design and the specifications of the principal components are described. In preliminary experiments, stable discharge was maintained for 15 msec or longer. The electron temperatures measured by diamagnetism and conductivity are both above 100 eV. An electron density of 1-2×10¹³ cm⁻³ was observed by a 6 mm microwave interferometer. Spectroscopy of impurity lines and intensity measurement of hard X-ray radiation are also described.
Open-access reader