Popis: |
Experiments on the implosion of multilayer cascade light liners were carried out on the IMRI‐3 (0.3 MA, T/4 = 700 ns) and IMRI‐4 (0.24 MA, 900 ns) installations. It has been demonstrated that when using three sequantial cascades, owing to the suppression of the Rayleigh‐Taylor instability, the ratio r10/rf ∼ 70 (where r10 is the initial radius of the outer cascade) can be achieved. The input energy density and the X‐ray output therein h are observed to increase (respectively, up to 1 kJ and 200 J for Kr). Measurements performed with the use of a grating spectrograph for different gases have shown that the temperature in the plasma column formed in liner implosion increases with atomic number. |