Volume 98, Number 4, May 2012
|Number of page(s)||6|
|Section||Physics of Gases, Plasmas and Electric Discharges|
|Published online||30 May 2012|
Experimental evidence of existence of the axial magnetic field in a plasma focus
National Research Centre “ Kurchatov Institute” - Moscow, Russia
2 Troitsk Institute for Innovation and Fusion Research - Troitsk, Moscow oblast, Russia
3 Institute of Plasma Physics and Laser Microfusion - Warsaw, Poland, EU
4 Czech Technical University - Prague, Czech Republic, EU
Accepted: 25 April 2012
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.
PACS: 52.58.Lq – Z-pinches, plasma focus, and other pinch devices / 52.59.Hq – Dense plasma focus
© EPLA, 2012
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