Numerical experiments on plasma focus neutron yield versus pressure compared with laboratory experiments
Published literature shows that the neutron yield of the plasma focus has been modeled in two papers using a thermonuclear mechanism. However, it is more widely held that plasma focus neutrons are produced mainly by nonthermalized mechanisms such as beam–target. Moreover these papers use several...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2009
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| Subjects: | |
| Online Access: | http://eprints.intimal.edu.my/304/ http://eprints.intimal.edu.my/304/1/3.pdf |
| Summary: | Published literature shows that the neutron yield of the plasma focus has been
modeled in two papers using a thermonuclear mechanism. However, it is
more widely held that plasma focus neutrons are produced mainly by nonthermalized
mechanisms such as beam–target. Moreover these papers use
several parameters which are adjusted for each machine until the computed
neutron yield Yn data agree with measured Yn data. For this paper numerical
experiments are carried out, using the Lee model code, incorporating a
beam–target mechanism to compute the Yn versus pressure data of plasma
focus devices PF-400 J and FN-II. The Lee model code is first configured
for each of these two machines by fitting the computed current waveform
against a measured current waveform. Thereafter all results are computed
without adjusting any parameters. Computed results of Yn versus pressure for
each device are compared with the measured Yn versus pressure data. The
comparison shows degrees of agreement between the laboratory measurements
and the computed results. |
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