.model MySwitch SW(Ron=.1 Roff=1Meg Vt=3 Vh=0)

I can’t see the part number of your SCR but 2mOhms would seem reasonable.

]]>The trick is to treat any real device as a blend of series resistance, series inductance and parallel capacitance.

eg:

A real capacitor is mostly capacitance, but in practice you need to be aware of it’s internal equivalent series resistance, because this models the dissipation the non-ideal component has, and it limits the power the cap can handle for long.

A real coil is mostly inductance, but it also has that interwinding capacitance, which will make it look resonant at some frequency.

A real resistor even has some inductance.

All of these always happen – empty space has some minimal capacitance per length and inductance per length – this is how it can carry light.

You mostly don’t need to worry about this except at really high frequencies – at low frequencies (wire length < ~ 5 wavelengths, where speed in a wire usually ~ 2/3c ) you can use the "lumped" parameter model, IE – what SPICE does.

So, you should be able to measure the impedance of your coil, using a frequency generator and an oscilloscope. (impedance, btw = complex resistance, ie, Z (impedance, ohms) = R(resistance, real, ohms) + j (j^2=-1) times X (reactance, ohms).

So impedance for an ideal coil is Z_L = j*omega*L, For a cap, Z_C = -j /(omega*C), Where omega = 2*pi*(frequency in Hz), L=inductance in Henries, C = capacitance in Farads. Doing this lets you pretend that ideal caps and ideal coils are just resistors, albeit ones with purely imaginary resistance. (this is why they don't dissipate power – they just cause the relationship between Voltage and Current to change phase, but ohms law V = IR still holds, except now v(t)=i(t)*Z().)

I suspect that when your Polywell captures electrons, it's impedance may change… possibly even in a complicated manner. I don't have any idea, at the moment, what that may look like, and I've even less of an idea what the impedance behavior of your electron injection circuit will look like in operation. This right here is why your project is so interesting – even if you don't reach break-even.

In a functioning Polywell power reactor, these things will likely need to be known – to be able to control the depth of the well, whilst maintaining that critical beta=1 condition.

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