**The Universal
Plasma Focus Laboratory RADPF5.15b**

Before
you download the Universal PF Laboratory, the following are **brief instructions** on how to use it: (**Skip to the bottom to download**.)

This
is the programme code of the Lee Model that enables you to run **any** PF machine: and compute its
waveforms of its dynamics, total current and voltage, temperatures, radiation
yields, and focus pinch current and
neutron yield (when operating in deuterium).

When
you have downloaded and opened the code, at the top left of the EXCEL worksheet
row 4 of cells is filled as follows:

L_{0}
nH C_{0} uF b cm
a cm z_{0} r_{0} mOhm

[Default
setting of the machine is for the PF1000, which you may run or change, if you
wish, to any other plasma focus by the following procedure]

Fill
in the corresponding cells in row 5 with the parameters of the machine you wish
to operate; the stray (or static inductance) L_{0} in nH, the bank
capacitance C_{0} in mF, the plasma focus outer/inner radii b/a in cm, and
the length zo in cm. The stray resistance r_{0} is filled in milliohm.
If you do not know the value of r_{0} for your plasma focus; try as an
initial value 0.1(L_{0}/C_{0})^0.5.

And
row 8 is filled as follows:

V_{0}
kV P_{0} Torr MW
A At-1 mol-2

Fill
in row 9 correspondingly the operational conditions you choose for the shot:
Charging voltage V_{0} in kV, fill pressure in Torr and gas (e.g. for
deuterium: MW fill in 4; A fill in 1, At-1 mol-2 fill in 2) another example: for Neon: for W fill in 20,
A fill in 10, At-1 Mol-2 fill in 1)

Row
6 has cells filled as:

Massf
currf massfr currfr

These
are the model parameters; which you may fill in row 7 initially as:

0.09 0.7 0.16 0.7

Having
set the code to these parameters; you may fire a shot as follows:

Click
the cursor on any blank (unused) cell.

Then
press Ctrl+A (i.e.press Ctrl and without releasing it press A)

The
code will run and the computed results will be displayed. On completion of running
(around 1 minute for most desktops) the graphs will also fill up.

**Download the Universal Plasma Focus
code** (RADPFV5.15de.c1) by the following procedure:

Right
Click on the link below. Then click Save target as: and select location as (say) Desktop. Using
this method of downloading the code is around 1M.

**Universal Plasma Focus Laboratory**