Comparison of Measured Neutron Yield Versus Pressure Curves for FMPF-3, NX2 and NX3 Plasma Focus Machines Against Computed Results Using the Lee Model Code

被引:0
作者
S. H. Saw
P. Lee
R. S. Rawat
R. Verma
D. Subedi
R. Khanal
P. Gautam
R. Shrestha
A. Singh
S. Lee
机构
[1] INTI International University,National Institute of Education
[2] Institute for Plasma Focus Studies,Department of Natural Science
[3] Nanyang Technological University,Central Department of Physics
[4] Bhaba Atomic Research Centre,undefined
[5] Kathmandu University,undefined
[6] Tribhuvan University,undefined
[7] Universty of Malaya,undefined
来源
Journal of Fusion Energy | 2015年 / 34卷
关键词
Plasma focus; Plasma focus modeling; Plasma focus neutrons; Lee model code; Neutron yield versus pressure;
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中图分类号
学科分类号
摘要
A range of plasma focus machines from the 200 J FMPF3 through the 2 kJ NX2 to the 20 kJ NX3 are operated at the National Institute of Education in Singapore. The neutron yield Yn versus pressure P curves for these machines have been measured and published. We use the Lee code to compute these Yn versus P curve for each machine after fitting a computed current waveform to a current waveform measured from each machine. Comparison of computed with measured Yn versus P curves show good agreement of peak Yn for the NX2 and NX3 whilst the measured peak Yn of FMPF3 is larger than the computed by a factor of 3. The computed curve is generally broader whilst the NX3 computed curve also shows a shift to higher pressures than the measured curve. The results are critically discussed.
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页码:474 / 479
页数:5
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