Implosion and radiation characteristics of conical wire array in different regimes of implosion are investigated at the 1 MA Qiangguang-1 facility by X-ray self-emission diagnostics.Experimental results show that the shape of precursor plasma is also conical. The initial implosion takes place near the cathode by a stronger Lorenz force,forming a triangle-like structure that produces harder X ray.The current crossing the bubble in the front of the wire array near the anode persists in persist ablating,thereb...