JET was extensively modified in the 1992/93 shutdown. The new pumped d
ivertor and many new systems were brought into operation early in 1994
. Operations have progressed to 4MA plasma current and, with substanti
al additional heating, H-mode confinement results confirm the expected
scaling. The high power handling capability of the pumped divertor wi
th sweeping is estimated at 20MW for 20s. H-mode plasmas have large Ty
pe I ELMs. With lower hybrid heating alone, 2MA full current drive has
been achieved with good efficiency, with ICRF power, effective heatin
g and direct electron heating have been demonstrated.