Scaling laws of nitrogen soft X-ray yields from 1 to 200 kJ plasma focus
Numerical experiments are carried out sys- tematically to determine the nitrogen soft X-ray yield for optimized nitrogen plasma focus with storage energy E 0 from 1 to 200 kJ. Scaling laws on nitrogen soft X-ray yield, in terms of storage energies E 0 , peak discharge current I peak and focus p...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer US
2013
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| Subjects: | |
| Online Access: | http://eprints.intimal.edu.my/83/ http://eprints.intimal.edu.my/83/1/Scaling%20laws%20of%20nitrogen%20soft%20X-ray%20yields%20from%201%20to%20200%20kJ%20plasma%20focus.pdf |
| Summary: | Numerical experiments are carried out sys-
tematically to determine the nitrogen soft X-ray yield for
optimized nitrogen plasma focus with storage energy E 0
from 1 to 200 kJ. Scaling laws on nitrogen soft X-ray yield,
in terms of storage energies E 0 , peak discharge current I peak
and focus pinch current I pinch were found. It was found that
the nitrogen X-ray yields scales on average with Y sxr;N 1⁄4
1:93 Â E 1:21
0 J (E 0 in kJ) with the scaling showing gradual
deterioration as E 0 rises over the range. A more robust
scaling is Y sxr 1⁄4 8 Â 10 À8 I 3:38
pinch . The optimum nitrogen soft
X-ray yield emitted from plasma focus is found to be about
1 kJ for storage energy of 200 kJ. This indicates that
nitrogen plasma focus is a good water-window soft X-ray
source when properly designed. |
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