Experimental evidence of existence of the axial magnetic field in a plasma focus

Статья опубликована в EPL (Europhysics Letters), 2012. V.98. Issue4. P. 45001.The magnetic field distribution substantially affects mechanisms for the generationof radiation in Z-pinches. Investigation of the axial component of the magnetic field is one ofthe important problems in plasma focus studies. The measurements of the Bz-component of themagnetic field on the PF-1000 facility were done with the multichannel absolutely calibrated probeboth at the stage of plasma-current sheath radial compression and in the dense-pinch stage. In thecompression stage, the axial component of the magnetic field reaches several kG that comprises~ 10% of the azimuthal component. The presence of the Bz field is a powerful argument in favorof the existence of closed magnetic configurations, which play an important role in the generationof neutrons.