Dena, a new PF device

One of the basic features of all plasma focus (PF) discharges, in both Filippov and Mather types is the behavior of the plasma-current sheath (PCS) in the stage of its radial compression. While in the Mather type facilities, the radial compression phase lasts a short time (compared with acceleration time in the inter-electrode gap), it becomes the main phase in the Filippov type. This leads to additional possibilities for variation of the PCS profile in the Filippov type facilities. As it was shown earlier [1, 3] modifying anode shape, makes it possible to affect the PCS, and from within the mode of the discharge.