knowledge should be freely accessible to all


Institute for Plasma Focus Studies


Internet Course on Numerical Plasma Focus Experiments


This is a do-it-yourself course. You may do the following course at your leisure; and submit the exercises to leesing@optusnet.com.au. When you have submitted all exercises satisfactorily, a customized e-certificate will be sent to you. The recommended course duration is 4-weeks.

e-mail consultation: Professor Sing Lee:    leesing@optusnet.com.au     leesing@plasmafocus.net


Material & Program                                                                                                                      


The Material


The course material is contained in 4 folders:

1 Modules1-4 Numerical Experiments

2 Code and data

3 Supplementary Papers (The supplementary papers are in the back section of the attached e-manual)

4 pinch current papers (The pinch current papers are in the back section of the attached e-manual)


Folder 1: contains the instructions for the 4 modules of the course

Folder 2: contains the Model code & Excel files needed for the course and referred to in the course instructions

Folder 3: contains the supplementary information referred to in the course instructions

Folder 4: contains additional recent papers on the role of pinch current in plasma focus numerical experiments


The Program


Module 1:

(a) Introduction to the Worksheet

(b) Configuring the Numerical Plasma Focus Laboratory (UPFL)

(c) Firing a shot in NX2

(d) Studying the results

(e) Exercise 1


Module 2:

(a) To configure the code for the PF1000 using trial model parameters

(b) To place a published PF1000 current waveform on Sheet 2.

(c) To place the computed current waveform on Sheet 2 in the same Chart

(d) To vary the model parameters until the two waveforms achieve the best match.

(e) Exercise 2: tabulate PF1000 results

(f) Self-fit Chilean PF400

(g) Exercise 3: comparative tabulation of PF400 vs PF1000. Discuss Physics.


Module 3: 

The PF1000 parameters as originally published. Nominal Lo, no ro .

Fitting that case from scratch.

Exercise 4: Self fit DPF78 with nominal Lo and no ro .

                   Add DPF78 to comparative list.


Module 4:

Variation of neutron yield with pressure; case of PF1000-from short circuit (very high pressure), through optimum pressure to low pressure; Exercise 5


Variation of SXR with pressure; case of NX2- from short circuit (very high pressure, through optimum pressure to low pressure) Exercise 6


Circuit analysis: from short-circuit shot: given Co, measure T and reversal ratio f; derive Lo, ro; Exercise 7


Scaling laws through numerical experiments. General discussion


Additional experiments


28 May 2008, IPFS, Melbourne


This activity is carried out in association with AAAPT and

the Plasmas Groups of INTI-UC, Malaysia and NTU/NIE, Singapore