New fusor for neutron production

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Isaac Boehm
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New fusor for neutron production

Post by Isaac Boehm » Tue Aug 27, 2013 11:21 pm

Hello all, I have built multiple IEC demo fusors and I have decided that I would like to get into a real working fusor that produces neutrons. I need advice on what I need to bring it to that level. What I currently have is: a 7500v NST rectified for negative DC, a Single stage 3cfm vacuum pump, and a geiger counter (for use with silver for neutron detection). I am looking for lower price range items so advice on ebay sellers and places to get deals on things would help. Thanks.
I can't think that it would be terrible of me to say — and it is occasionally true — that I need physics more than friends. -Robert J Oppenheimer

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Re: New fusor for neutron production

Post by charlie_mccartney » Tue Aug 27, 2013 11:50 pm

two stage rotary vane with diffusion pump, 30kv at least, deuterium system, SS chamber. Pretty much a entirely new system.
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Isaac Boehm
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Re: New fusor for neutron production

Post by Isaac Boehm » Tue Aug 27, 2013 11:56 pm

Could I do it without the diffusion pump and just the 2 stage?
I can't think that it would be terrible of me to say — and it is occasionally true — that I need physics more than friends. -Robert J Oppenheimer

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Isaac Boehm
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Re: New fusor for neutron production

Post by Isaac Boehm » Wed Aug 28, 2013 12:10 am

I can't think that it would be terrible of me to say — and it is occasionally true — that I need physics more than friends. -Robert J Oppenheimer

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Richard Hull
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Re: New fusor for neutron production

Post by Richard Hull » Wed Aug 28, 2013 3:13 pm

My first fusion in 1999 was with just a two stage mechanical pump and did fusion, but at very poor levels. Wasted a lot of deuterium gas too.

A diffusion or turbo pump is needed for any serious work.

Richard Hull
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Fusion is the energy of the future....and it always will be
Retired now...Doing only what I want and not what I should...every day is a saturday.

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Isaac Boehm
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Re: New fusor for neutron production

Post by Isaac Boehm » Wed Aug 28, 2013 4:34 pm

Thanks I guess I'm gonna have to.
I can't think that it would be terrible of me to say — and it is occasionally true — that I need physics more than friends. -Robert J Oppenheimer

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Isaac Boehm
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Re: New fusor for neutron production

Post by Isaac Boehm » Thu Aug 29, 2013 9:26 pm

Anyone know a place to get a reasonably priced diffusion pump? 120v preferably.
I can't think that it would be terrible of me to say — and it is occasionally true — that I need physics more than friends. -Robert J Oppenheimer

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Carl Willis
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Re: New fusor for neutron production

Post by Carl Willis » Fri Aug 30, 2013 12:04 am

My definition of a "reasonable" diffusion pump and a "reasonable" price is something with a rated speed of 20-100 liters per second, and $100-200 on the surplus market. Such pumps are at the smallest end of the commercial lineup, and entirely sufficient for fusor use. They show up on eBay all the time.

You also need oil for the pump. You might pay more for the oil than for the pump. The smaller the pump, the less of this costly oil it requires. The smaller pumps also heat up faster and use less electricity and cooling water (some use water, some use an air fan).

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Isaac Boehm
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Re: New fusor for neutron production

Post by Isaac Boehm » Fri Aug 30, 2013 12:31 am

Thanks ebay actually has some great prices!
I can't think that it would be terrible of me to say — and it is occasionally true — that I need physics more than friends. -Robert J Oppenheimer

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Isaac Boehm
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Re: New fusor for neutron production

Post by Isaac Boehm » Fri Aug 30, 2013 12:40 am

I know that xrays are dangerous but what about neutrons are they hazardous to come in contact with? From a fusor of course.
I can't think that it would be terrible of me to say — and it is occasionally true — that I need physics more than friends. -Robert J Oppenheimer

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