Abstract
The effect of an axial magnetic field Bz on an imploding metallic gas-puff Z-pinch was studied using 2D time-gated visible self-emission imaging. Experiments were performed on the IMRI-5 generator (450 kA, 450 ns). The ambient field Bz was varied from 0.15 to 1.35 T. It was found that the initial density profile of a metallic gas-puff Z-pinch can be approximated by a power law. Time-gated images showed that the magneto-Rayleigh-Taylor instabilities were suppressed during the run-in phase both without axial magnetic field and with axial magnetic field. Helical instability structures were detected during the stagnation phase for Bz < 1.1 T. For Bz = 1.35 T, the pinch plasma boundary was observed to be stable in both run-in and stagnation phases. When a magnetic field of 0.3 T was applied to the pinch, the soft x-ray energy was about twice that generated without axial magnetic field, mostly due to longer dwell time at stagnation.
| Original language | English |
|---|---|
| Article number | 063502 |
| Journal | Physics of Plasmas |
| Volume | 23 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Jun 2016 |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Effect of the axial magnetic field on a metallic gas-puff pinch implosion. / Rousskikh, A. G.; Zhigalin, A. S.; Oreshkin, V. I.; Frolova, V.; Velikovich, A. L.; Yushkov, G. Yu; Baksht, R. B.
In: Physics of Plasmas, Vol. 23, No. 6, 063502, 01.06.2016.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of the axial magnetic field on a metallic gas-puff pinch implosion
AU - Rousskikh, A. G.
AU - Zhigalin, A. S.
AU - Oreshkin, V. I.
AU - Frolova, V.
AU - Velikovich, A. L.
AU - Yushkov, G. Yu
AU - Baksht, R. B.
PY - 2016/6/1
Y1 - 2016/6/1
N2 - The effect of an axial magnetic field Bz on an imploding metallic gas-puff Z-pinch was studied using 2D time-gated visible self-emission imaging. Experiments were performed on the IMRI-5 generator (450 kA, 450 ns). The ambient field Bz was varied from 0.15 to 1.35 T. It was found that the initial density profile of a metallic gas-puff Z-pinch can be approximated by a power law. Time-gated images showed that the magneto-Rayleigh-Taylor instabilities were suppressed during the run-in phase both without axial magnetic field and with axial magnetic field. Helical instability structures were detected during the stagnation phase for Bz < 1.1 T. For Bz = 1.35 T, the pinch plasma boundary was observed to be stable in both run-in and stagnation phases. When a magnetic field of 0.3 T was applied to the pinch, the soft x-ray energy was about twice that generated without axial magnetic field, mostly due to longer dwell time at stagnation.
AB - The effect of an axial magnetic field Bz on an imploding metallic gas-puff Z-pinch was studied using 2D time-gated visible self-emission imaging. Experiments were performed on the IMRI-5 generator (450 kA, 450 ns). The ambient field Bz was varied from 0.15 to 1.35 T. It was found that the initial density profile of a metallic gas-puff Z-pinch can be approximated by a power law. Time-gated images showed that the magneto-Rayleigh-Taylor instabilities were suppressed during the run-in phase both without axial magnetic field and with axial magnetic field. Helical instability structures were detected during the stagnation phase for Bz < 1.1 T. For Bz = 1.35 T, the pinch plasma boundary was observed to be stable in both run-in and stagnation phases. When a magnetic field of 0.3 T was applied to the pinch, the soft x-ray energy was about twice that generated without axial magnetic field, mostly due to longer dwell time at stagnation.
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U2 - 10.1063/1.4953048
DO - 10.1063/1.4953048
M3 - Article
VL - 23
JO - Physics of Plasmas
JF - Physics of Plasmas
SN - 1070-664X
IS - 6
M1 - 063502
ER -