My Setup so far, and Finally Under Vacuum!!!

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Thomas Henderson
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Joined: Tue May 02, 2017 6:56 pm
Real name: Thomas Henderson

My Setup so far, and Finally Under Vacuum!!!

Post by Thomas Henderson » Wed Jul 18, 2018 5:52 pm

So after a year of parts collecting, I have finally pumped down my "collection" of misfit parts. I have vacuum!!! I am about $2300 in so far (including another xray transformer), the most expensive parts so far were the chamber, and Turbo pump. The cheapest to my surprise were the gauges. I am surprised how cheap one can get gauges with a analog 0-10v output... most people just skim over them online preferring ones with screens, but with a micro controller and a cool surplus display one can make an epic measurement system (real case coming soon) the Granville-Phillips 343 is my fav of the two, because the output is linear. I have managed to offset most of my project costs so far by actually renting out some of my parts to a local company who works with vacuum. people seem to love Turbo pumps <3
I feel it will still be awhile before I can start making neutrons, as I have a lot to work out on the HV side of things (and a garage to finish building), but this gets me started with all the vacuum fun I want to do.
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Thomas Henderson
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Joined: Tue May 02, 2017 6:56 pm
Real name: Thomas Henderson

Re: My Setup so far, and Finally Under Vacuum!!!

Post by Thomas Henderson » Thu Dec 06, 2018 6:53 pm

Just a little update. I have been bitten by the vacuum bug... I have been getting more and more excited just to be able to pump things down. I have recently acquired an RGA, and wow Is this thing fun! Things are starting to look silly with everything hanging off of the chamber, might need to condense some stuff on it. The RGA has taught me that water is the bane of my existence... why does it stick so well to stuff!!!?????
I now want to make another chamber just to Just to tinker with, and because I keep coming across random vacuum stuff, someone just gave me old bit of setup that looks like it came from a He leak detector, and its got all sorts of little KF bits and bobs, as well as a small diffusion pump inside!

Next steps are clean up the "vacuum table", Make that better stand, make a power supply for everything, as I want my bench supply back, work on a way to bake things out, maybe omit some of the vacuum gauges for now... the convection Pirani almost seems silly on the setup at this point.
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Richard Hull
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Re: My Setup so far, and Finally Under Vacuum!!!

Post by Richard Hull » Thu Dec 06, 2018 11:13 pm

RGA's are the cat's PJs. With an electron multiplier option, they can go really deep.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
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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Dennis P Brown
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Location: Glen Arm, MD

Re: My Setup so far, and Finally Under Vacuum!!!

Post by Dennis P Brown » Fri Dec 07, 2018 1:20 pm

Nice and certainly a lot of possible science using the RGA. Of course a fusor can work well with trace water typically caused by opening the chamber to the air. A good plasma burn can handle the issue so getting it all out isn't important. But looking at the results with an RGA, again, could prove interesting to post here. You should consider posting your current work as an FYI so others can see what you have found.

Never heard of anyone renting out their equipment for profit - very nice! Hope that continues.

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