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

Статья опубликована в EPL (Europhysics Letters), 2012. V.
98. Issue
4. P. 45001.
The magnetic field distribution substantially affects mechanisms for the generation
of radiation in Z-pinches. Investigation of the axial component of the magnetic field is one of
the important problems in plasma focus studies. The measurements of the Bz-component of the
magnetic field on the PF-1000 facility were done with the multichannel absolutely calibrated probe
both at the stage of plasma-current sheath radial compression and in the dense-pinch stage. In the
compression 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 favor
of the existence of closed magnetic configurations, which play an important role in the generation
of neutrons.