Soft x-ray yield from NX2 plasma focus
The Lee model code is used to compute neon soft x-ray yield Ysxr for the NX2 plasma focus as a function of pressure. Comparison with measured Ysxr shows reasonable agreement in the Ysxr versus pressure curve, the absolute maximum yield as well as the optimum pressure. This gives confidence that t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2009
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| Subjects: | |
| Online Access: | http://eprints.intimal.edu.my/305/ http://eprints.intimal.edu.my/305/1/4.pdf |
| Summary: | The Lee model code is used to compute neon soft x-ray yield Ysxr for the NX2 plasma focus as a
function of pressure. Comparison with measured Ysxr shows reasonable agreement in the Ysxr versus
pressure curve, the absolute maximum yield as well as the optimum pressure. This gives confidence
that the code gives a good representation of the neon plasma focus in terms of gross properties
including speeds and trajectories and soft x-ray yields, despite its lack of modeling localized regions
of higher densities and temperatures. Computed current curves versus pressure are presented and
discussed particularly in terms of the dynamic resistance of the axial phase. Computed gross
properties of the plasma focus including peak discharge current Ipeak, pinch current Ipinch, minimum
pinch radius rmin, plasma density at the middle duration of pinch npinch, and plasma temperature at
middle duration of pinch Tpinch are presented and the trends in variation of these are discussed to
explain the peaking of Ysxr at optimum pressure. |
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