Anyone able to help?

[steventw]

Looking for someone who got a vacuum pump that possibly wants in on my fusion idea
That’s in Victoria , Australia. I guess
I got to wait about 4 weeks for new vacuum pump to test theorie and get some hydrogen gas and some lead sheeting
Kf25 attachment maybe need for connector to turbo
Do have a few kf25 connectors for various threads

Have neutron detector
X ray beta and gamma detector
Chamber, vacuum gauges
Turbomolecular pump and a diffusion pump
And my idea.

Was putting out 600 us/h at 38,000 micron trying to pump down further but pump badly need a service
But do have a new one On way
Thought I’d open to anyone who can help before pump gets here and have to finish on own
I can get shielding and hydrogen gas if needed easy enough.

[Dennis P Brown]

Hydrogen gas? For a demo air is fine. Hydrogen gas is a waste of money and useless for a fusor.

[steventw]

Well xray beta and gamma detector puts out 5500us/h leaking air back in
Want neutrons so Gona try hydrogen

[Dennis P Brown]

You post wasn't clear but I think you are claiming 5500 u-sieverts/hour? Depending on the voltage your using and wall thickness of your chamber you are reading x-rays; certainly not gamma nor beta. X-rays are a function of electrons striking the walls of a metal chamber and have no real relevancy to any gas in the chamber (through the gas will reduce electron energy). You are not reading gamma or beta from a chamber filled with hydrogen gas when operating in a fusor mode.

So your reading about 0.005 sievert/hr for x-rays? I assume your using a common commercial low cost unit. Those are not the best units to use for accuracy and safety.

If you want to generate neutrons hydrogen will not work. You need deuterium. You really need to read the FAQ's on fusors.

Yes, your pump is very bad so the new one should do better.

[steventw]

Well I know it sits around .10 -.16 when away from it turned on shrugs

[Dennis P Brown]

Certainly x-rays are a major issue in fusors when voltages exceed 15kV. So, you need to be aware of that hazard. You should read up on radiation detection and fusors in the FAQ. Again, hydrogen is useless for creating neutrons.

[steventw]

I’m usen 8kv neon transformer

I got a neutron detector
And was basically told previously on here no one cares unless there’s neutrons

[Dennis P Brown]

I am rather lost by the statement that "no one cares."

Your hard to follow so please do try to post a bit more information if you want help.

A 8 kV neon sign transformer is a useful device to learn about plasma's in a chamber. I assume it is a cheap Chinese one. These are rather low power but that, for a demo fusor, is fine. Again, don't waste your money on hydrogen and unless you can reach 20 kV or above, even with deuterium gas you will not generate any detectable neutrons.

[Cinar Kagan]

I calculated that proton-proton fusion rate in a fusor a while ago. While it WILL eventually fuse two protons, it would take some billions of years assuming a normal fusor tempreture in the tens of keV.

Cinar Kagan

[steventw]

Ok
I’m trying something different and not just running a normal fusor.
Trying to lower requirement for fusion using magnets to boost charged particles speed across gap with a free boost of speed from magnetic fields of solid state magnets

In theorie depending how strong magnets are should lower requirements by x unknown
Started getting better result as far as rays go when put magnets into attracting not repel
Thinking pos wire pos charged particles
Neg wire neg charge and start attracting across gap
Depending on amount of particles getting in way as am yet to get to below 150 micron which achieved before had detectors and still in repel mode
Haven’t got below around 15000 micron with current setup cause pump decided to go kaput.
Back up pump bit worse leaky attachments and about 28000 micron.
But new pump about 4 weeks away

Experiment

Experiment

Readings

[Dennis P Brown]

Your reading x-rays from the 8kV electrons in the plasma hitting the walls not gamma's.

Even in a real fusor producing many hundreds of thousands of neutrons/sec, the gamma signal is too low to generally measure.

To distinguish between x-rays and gamma's normally takes a spectrum analyzer. But since gamma's are never less than in the MeV class (photons produced via nuclear processes) and using a simple filter to absorb the very low energy x-rays one can easily show those are, in fact, X-rays under and 10 keV.

You can not achieve fusion using added magnets - they provide zero added acceleration nor will they increase any probability of fusion of hydrogen - your collision energies are vastly too low. But your experiment so run it. Working a low energy plasma and using magnets certainly can be fun and educational.

You can google the energy required for hydrogen fusion if you are interested.

As long as you use the 8 kV NST your x-ray danger is minimum (as per that low end detector.)

[Richard Hodson]

I cannot comment on your design much but found it interesting looking with the magnets. I did study about P-P fusion because I thought hydrogen could fuse and just needed more velocity than D-D. Wikipedia says that the sun fuses P-P but very few form D and most fly apart because one proton does not transform into a neutron to hold the new element together. If this were not so the sun would burn it's fuel much faster and possibly nova in short order. Helium from mylar balloons works for plasma testing if a light element is desired to test heating or ?. Hydrogen is flammable like D2 so care must be used with air. One person put a weight on a mylar balloon for fuel pressure and used D2. Instead of a tank and pressure regulators. Fusing H2 isn't going to happen as protium-protium (proton-proton). Some fusion projects use other gases to help study plasma. Two magnets with alike poles facing is a bionic cusp and they trap ions but do not focus. Unlike poles towards each other like you show have been tried in pinch designs. One of the first fusion patents was by Bennett? A quartz tube in-between magnets with cone shaped ends to narrow the field. A high current then ran thru the plasma. It was classified but did not work well.

[Richard Hodson]

Steven Sesselmann has many failed fusion designs you might find interesting. He added magnets to help focus on one design. His work is confusing but good for brainstorming or to know what doesn't work well. He lives n Australia and sells neutron detectors. Wikipedia has List of fusion experiments or something. Then review those projects if you want. Also Wikipedia Nuclear fusion or something like that.

[Richard Hodson]

The two plasma rings look very interesting with the rest of the structure. Ions follow magnetic lines of force by spiraling around them. Electrons travel in a different direction and spiral the lines of force. Attraction and repulsion occur but not in a straight direction. With electro statics the ions do not spiral and attract and repel. You have a combo so not sure what those ions path is. The rings are interesting.

[steventw]

Well when get pump will find out. Shrugs
I’m more a try it and see

[Richard Hull]

Lessons are always learned best by the doing. Just putting something together can be easy. The trouble is most do not have the right instruments in hand or if they do, they rarely know how to use them and then report erroneous results, not understanding much of the theory of how they work. This is especially the case with neutron detection as it can be an expensive effort to apply and get right. We have stressed this since 1998. We know what to expect when fusion occurs. Why?.. because we have done it for years.

Richard Hull

[Dennis P Brown]

The try and see method is certainly viable, fun (at times) and can lead to a lot of learning. I always like when people try new ideas and post them. If I recall from your posts, you have a top rate neutron detector system. You must use proper ... and I looked this term up before posting (LOL) - a properly sized neutron moderator, which is essential for successful detection if fusion is taking place.