Heating of a Plasma withTi>Teby FastθCompression

Plasma heating by fast $\theta$ compression has been studied using an initial plasma with $T_i>T_e$ and $n\sim {10}^{14}$ ${\mathrm{cm}}^{-3\mathrm{}}$, which is produced by collision of two plasma streams ejected from $\theta$-pinch guns. Both ions and electrons are heated up to 3-4 keV with a maximum heating rate of 20 eV/nsec. After the magnetic field becomes maximum, two-temperature distributions are observed for the ions.