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Progress in MJ plasma focus research at IPPLM

Scholz M., Karpinski L., Krauz V. I., Kubeš P., Paduch M., Sadowski M. J.

Nukleonika

2012

Vol. 57, No. 2

183-188

The results of studies of the plasma dynamics and neutron emission on a PF-1000 facility in the stage of pinch formation are presented. The measurements were performed using various modifications of the calibrated magnetic probes, 16 frame interferometry, silver activation counters and photomultiplier tube (PMT) neutron probes. The current measurements at a distance of 40 mm from the axis of the electrodes was measured. This dependence agrees well with the known scaling, Yn similar to I4. The evolution plasma density during pinch formation and a neutron emission were study.

Magnetic field measurements on PF - 1000 and PF - 3 facilities: current sheath structure and neutron scaling

Krauz V. I., Mitrofanov K. N., Scholz M., Myalton V. V., Paduch M., Grabovskii E. V., Karpinski L., Koidan V. S., Vinogradov V. P., Vinogradova Y. V., Zielinska E.

Nukleonika

2012

Vol. 57, No. 2

201-204

The comparative analysis of the magnetic field distribution, the dynamics and structure of the plasma current sheath, and the neutron yield scaling in two largest plasma focus facilities, PF-3 and PF-1000 is done. The power-low dependence of the neutron yield on the current in the imploding plasma sheath has been demonstrated experimentally. For the first time the presence of the Bz magnetic field components is experimentally shown.

Dena, a new PF device

Tafreshi M. A., Farrahi M., Lamehi M., Goudarzi S., Habibi H., Memarzadeh M., Siahpoush V., Saeedzadeh E., Vinogradov V. P., Krauz V. I., Krivtsov V. A., Karakin M. A., Myalton V. V., Tykshaev V. P.

Nukleonika

2001

Vol. 46, suppl. 1

85--87

In this paper we are going to introduce “Dena”, a new Filippov type plasma focus facility, with a condenser bank of 0.288 mF, and a maximum supplying energy of 90 kJ (at Vmax= 25 kV). The facility was installed and started to work in the first quarter of the year 2000. Major points of the paper are: – Dena’s construction, functionality, and diagnostic system. – Preliminary results: Different modes of neutron, X-ray, and “hot spot” production, as well as the possibility of controlling operational mode, by changing anode configuration and initial discharge condition.