Single circuits generate nuclear reactions

[forest]

It may :
1. do not working

or

2 .blow power transformer (120V) due to runaway effect

IMHO

[sparks]

 Good notation on the carbon having to create a pinch zone.  The geometry of the electrodes is a major consideration.   Dipolar geometry should be considered.  See below Utube Demo.  Sugars got carbon in them.
Interesting note about carbon is as it's thermal energy density is increased it's electrical resistance is decreased.

                             http://www.youtube.com/watch?v=vCNNqgKqnaQ

   Seems someone else knew how to create plasma where they wanted it.  Please note temple of Dendrah.  Quite aways down the page.  The one with what appears to be 1/2of a Tesla Coil or a horseshow magnet with the 4 spark gaps on top.  The lamp lit independently was achieved by Tesla back in the day as he walked about his stage wowing the hords.  I believe Tesla was planning on creating a stationary " lightning bolt" in his Wardenclyffe sending out electromagnetic density waves through the Earth Crust while at the same time creating a near ionosphere emanating from the top of the tower.  When he told JP Morgan he needed at least three of these to define an area coverage Morgan pulled the plug financially ruining and discrediting Tesla.

                                                     http://ancientskyscraper.com/

[Reiyuki]

Continuing post 817, I have done the test with two (pure) carbon rods alone without any thoriated tungsten. The carbon rods are in light contact. I have got substantially the same hump effect as reported in post 817, so it works with carbon alone.

I repeated the test again with one single continuous rod of carbon and got a smooth waveform from the capacitor discharge without any humps and no sign of the saturable reactor going out of saturation so a single continuous carbon rod does not work, a spark gap is needed, a lightly touching contact being enough. The spark gap no matter how small is needed to generate the reverse current needed to get the humps on the waveform.

Mike

I've been pondering this one and may have an explanation.

Way back in the first 5 pages of this thread, '110 joule pulse' phrase was mentioned, and that was in reference to the sq/in of the carbon.  IE:  3/8 dia = 110j required.  Thinner carbon should in theory need less power.

  Your pulse may be too small/slow for the diameter carbon rod you're using to 'crack' the full diameter rod.  When lightly touching you are condensing the pulse onto very few carbon atoms and that causes the effect.

  If you have some extra carbon, try the following:
    - repeat the experiment with 2+ carbon gaps of the same total length
    - lathe down a section of carbon to 1/16" or smaller and repeat (if available)
    - (if no lathe available)  try to break some good sized chips from the end of one carbon rod.  Use alligator clips and repeat with the small piece.
    - vary the pressure put on the rod gap.  At a point it should stop working because of the total active area vs pulse power.


Also some useful mini-experiments to try:
-Does the pulse magically appear at a certain voltage or is there a gradual buildup over a wide range (IE: pulse waveform may appear exactly at 82v and above or may gradually build from as low as 30v in your system)

-Try variations on the 12v B-Field coil.  See if you can vary the pulse by making a very tiny magnetic field.

[mikewatson]

I've been pondering this one and may have an explanation.

Way back in the first 5 pages of this thread, '110 joule pulse' phrase was mentioned, and that was in reference to the sq/in of the carbon.  IE:  3/8 dia = 110j required.  Thinner carbon should in theory need less power.

  Your pulse may be too small/slow for the diameter carbon rod you're using to 'crack' the full diameter rod.  When lightly touching you are condensing the pulse onto very few carbon atoms and that causes the effect.

  If you have some extra carbon, try the following:
    - repeat the experiment with 2+ carbon gaps of the same total length
    - lathe down a section of carbon to 1/16" or smaller and repeat (if available)
    - (if no lathe available)  try to break some good sized chips from the end of one carbon rod.  Use alligator clips and repeat with the small piece.
    - vary the pressure put on the rod gap.  At a point it should stop working because of the total active area vs pulse power.


Also some useful mini-experiments to try:
-Does the pulse magically appear at a certain voltage or is there a gradual buildup over a wide range (IE: pulse waveform may appear exactly at 82v and above or may gradually build from as low as 30v in your system)

-Try variations on the 12v B-Field coil.  See if you can vary the pulse by making a very tiny magnetic field

Reiyuki, thanks for your comments.
Some of your points you raised,  I am in the process of doing or have done some and the others I will attempt shortly.
Firstly, the carbons I am using are the" Ted Pella" spectrocopically pure stuff and are 6.3 mm diameter. I have been trying  multiple spark gaps in series with carbon fragments between carbon rods, but I currently get a very noisy waveform, the pressure is critical. I am still working on that one. Lathing down I found difficult because the carbon is so brittle. Mounting a small grinder in the lathe tool post and grinding the rod down shows some success.

About the pulse hump, it always appears in the same place (voltage across current transformer load) unless a magnetic field is present on the (positive) carbon rod. Its position can be also changed by adding or taking away a turn on the ferrite-ring inductor. It appears at a given voltage as seen across the current transformer load. As I said with a continuous carbon rod (no spark gap) there is no hump, the waveform is completely smooth, with or without a magnetic field, with or without a ferrite inductor.
With a spark gap and no B field the hump appears at a given position, changing the B field on the +carbon changes the position of the hump one way and reversing the polarity of the B field moves the hump to the other side of the no B field position. 

On my thyristor tiggered capacitor discharge system the limit of joules is at present set by the 400 volt capacitors so I can get up to 0.5 *(400)^2 *0.008 =  640 joules and I have tried 200 volts = 160 joules on solid carbon without any noticeable effect.
I am using the non scientific method of holding the carbon/carbon or tungsten/carbon junction together by a weak rubber band. With voltages around 130 volts touch contact without rubber bands works but for low voltages a  rubber band or something similar is needed.
I will try filing one carbon or both to a point and see if that helps.
Still work in progress...
The advantage of the thyrstor circuit is that it turns off only when the current has decayed to a small value, after some 5 millisecs.

I have produced an FET circuit similar to Naudin's.
I will report the results in another post.

Watch for current transformer saturation, even with a 1 turn primary, Thereby hangs another tale! Do the calculation.

NI = HL
N=1 number of turns on primary 
I = 319 amps (VSG v3.5)
L is path length which, on Naudins current transformer is about 10 cm mean diameter or 0. 32 meters.
Then
H= 996 amps/meter
B = mu(0)mu(r)H
taking relative permeability of transfromer iron at mu(0) =2000;
B=4*pi*10^-7* 2000*996
B= 1.6 Tesla
That is right on the saturation limit of common transformer iron using a realively low relative permeability figure. The  point is:- how does the remanent flux in the core get reset? As is well known,
any soft iron in a closed path, such as the core of the current transformer, retains its magnetism unless an airgap is introduced or a demagnetising current is applied. It is a consequence of the finite area of the BH loop in any iron.
Having found the effect of an saturable ferrite reactor, what is the current transformer doing if it is near saturation and no reset pulse is applied? clearly there must be stored energy there.
If this is dumped as a result of a second pulse of a subsequent test we would get two lots of energy one from the current transformer core and the other from the applied pulse from the capacitors/carbons.

Mike

[Reiyuki]

Thanks for all the details.  The more we data we have to ponder over the better.  Lot of 'interesting' effects to add to the list.  I'll share what I come up with, but I'm on the road, so that purposed HV setup can't be tried till saturday.   

The erratic waveforms from chips could mean some filtering is being done by the main rod.  Of course, the carbon is really a plain old resistor if you take out the VSG concepts, so there's your 'hump'.  Maybe just rubber-banding 2 carbon rods with a chip in the middle?

It looks more and more that regardless of whatever process is supposedly at work in a VSG, the carbon rod is acting like a transformer core.  supersaturated.  That would explain your ferrite current transformer saturation throughout the process; it's coupled.
  If this were the case, you could prevent runaway by simply moving your transformer further away from the carbon until the voltage is 'reasonable'.  Or maybe by adding lossy metals nearby.


Welp, that's all I can think of at the moment.  Good luck with the tests.

-Rei