Search found 366 matches: +vacuum +safety

Searched query: +vacuum +safety

by Dennis P Brown
Fri Feb 08, 2019 10:10 am
Forum: Images du Jour
Topic: Tyler's Demo Fusor
Replies: 4
Views: 560

Re: Tyler's Demo Fusor

Your fusor goes out because your vacuum system is doing better than 25 microns so there isn't enough gas in the chamber ... the pressure (say, 30 microns) so your plasma stays light. Good you are wearing safety glasses but that doesn't protect your face. A thin walled glass like that is ...
by Tyler Meagher
Wed Feb 06, 2019 3:23 am
Forum: Images du Jour
Topic: Tyler's Demo Fusor
Replies: 4
Views: 560

Tyler's Demo Fusor

I built a small demo fusor using my rebuilt Pfeiffer Duo 1.5A vacuum pump, a pickle jar, vacuum bagging sealant (tape), a spark plug, a variac, ... I put the pickle jar vacuum chamber in a clear plastic trashcan for safety. Below are some pictures of my build, and my demo fusor making plasma. ...
by Enzo Carter
Wed Jan 16, 2019 3:25 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Construction of Neutron Grade Fusor
Replies: 45
Views: 2943

Construction of Neutron Grade Fusor

... Varian screw valve NW50 to NW50 NW50-VAlve-IMG_7191.jpg Vacuum chamber 4-way NW 50 cross - stainless NW50-Cross-IMG_2962.jpg view ... a few weeks now and am getting close to something to show to the forum. safety is key so i have not been able to work unsupervised which limits my ...
by ian_krase
Sat Jan 05, 2019 11:07 pm
Forum: New User Chat Area
Topic: Someone give me some exact specs
Replies: 19
Views: 1233

Re: Someone give me some exact specs

William, I suspect some people might be willing to produce a design for vacuum chambers and gas delivery as consultants in exchange for a fee. Skilled ... radioactive. These rapidly become impossible to operate without hefty safety and licensing requirements. There are some people working on energy ...
by Robert Dwyer
Thu Jan 03, 2019 2:08 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: How to figure out the specs of old Rigaku scintillation tube probe?
Replies: 24
Views: 1743

Re: How to figure out the specs of old Rigaku scintillation tube probe?

The radiation safety aspect of operating such a supply cannot be overstated. At 50kv and 300ma the amount ... away from my device. Assuming you aren't running a a true ion beam device (in hard vacuum), scaling that dose up 60x is 120mrem/hr. That is a dose I wouldn't be comfortable ...
by Dennis P Brown
Tue Jan 01, 2019 8:06 pm
Forum: New User Chat Area
Topic: Someone give me some exact specs
Replies: 19
Views: 1233

Re: Someone give me some exact specs

... kV better.) Cost - a steal at $5 to 7 K. A turbo (any unit you can find vacuum connections to for a manual gate value.) Cost, $10 - 15 K and up. ... fusor. Or, just buy new, off the self stuff (some do) for big bucks. Safety - if you are comparing nuclear power systems like power plants (fission ...
by Enzo Carter
Fri Dec 21, 2018 12:17 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Creation, usage, and destruction of a cathode
Replies: 12
Views: 1258

I made the forum recommended changes and added a Turbo pump

... than my fusor might ever generate!! I added a second ground strap for safety I am now using the mirror and have the fusor view port pointed away ... geiger counter but had no X-rays i added a turbo pump so i can get the vacuum below the roughing levels. I have an eBay leybold tw 250 that actually ...
by Rich Feldman
Sun Dec 16, 2018 4:28 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Flexible Deuterium Gas Input Hose?
Replies: 3
Views: 444

Re: Flexible Deuterium Gas Input Hose?

... diffusion flows will be about the same, whether tubing is under vacuum or small positive pressure (i.e. with flow restricting orifice downstream). For the latter case, an upstream flow limit would be good for safety. Then if gas hose popped off at the fusor end, and magically caught ...
by Dennis P Brown
Tue Nov 13, 2018 1:35 pm
Forum: Please Introduce Yourself
Topic: Hello from Panama
Replies: 1
Views: 463

Re: Hello from Panama

... metal tube thru it can be used for a pump out and voltage access (use a vacuum grade rubber hose of sufficient length to prevent conduction and use ... vacuum pump to that short metal tube - the pump MUST be grounded for safety.) Using the wine bottle, then a flat metal base plate can be used ...
by Dennis P Brown
Sun Nov 11, 2018 12:06 am
Forum: Please Introduce Yourself
Topic: Hello from Mississauga
Replies: 5
Views: 765

Re: Hello from Mississauga

... gauge is in error. Adding a second mechanical pump will not lower the vacuum very much (assuming the system is capable of the 10^-2/10^-3 range.) ... In any case, your bell jar should be shielded with a wire mesh cage for safety.