Investigation of the hot initial plasma created in an axisymmetric end syst
em of the ambipolar trap AMBAL-M has been completed; In the end mirror we o
btained the MHD stable plasma with the electron temperature of 50 eV, ion t
emperature 200 eV, and density about 10(13) cm(-3). In an MHD anchor - the
semicusp a transverse profile of the plasma pressure favorable for the MHD
stability was obtained. Pulsed injection of fast atoms with the current of
100 A demonstrated sufficient accumulation rate of the ion population trapp
ed into the initial plasma. The first experiments with ICR-heating of the i
nitial plasma were carried out.
Two atomic injectors of the end mirror were prepared for work. In these inj
ectors four quasistationary proton beams were obtained with the energy of 2
5 keV and current of up to 50 A per beam. After their charge-exchange the a
tomic beams were passed through an MHD stabilizing shell and the target pla
sma.
Principal vacuum units of the 2-nd stage of the installation were tested an
d prepaired for assembly. One-half of the magnet-vacuum system of the AMBAL
-M central solenoid was assembled and tested for vacuum.