Search found 1269 matches

by Dennis P Brown
Wed Jan 29, 2020 1:40 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor construction questions
Replies: 11
Views: 886

Re: Fusor construction questions

For oil vane pumps, open to atmosphere isn't a big deal for short periods. Some (minor) amount of oil will be lost via misting. However, this isn't unlike a bleed air vent to remove trapped water vapor from a pump. Since your vacuum quality improved, that is/was a likely issue. So, you might want to...
by Dennis P Brown
Tue Jan 14, 2020 5:36 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor V construction - the process long running
Replies: 1
Views: 175

Re: Fusor V construction - the process long running

Fusor IV was a great device and provided many people (myself, included) a chance to see a high neutron fusor operate. But I agree its is time to move on and test new ideas so as to enable the continued development of new fusor ideas.
by Dennis P Brown
Mon Jan 06, 2020 3:39 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: X-Ray Problems.
Replies: 12
Views: 402

Re: X-Ray Problems.

I simply had my Geiger counter and an exposure ion Pen (one that can be worn) calibrated by a company that does that for a modest price. Felt my health and safety was worth the cost. Both items on e-bay cost under $100 total so, even though cheap, they were proven and calibrated. So they provided ex...
by Dennis P Brown
Sun Jan 05, 2020 10:53 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: EM Waves in Salt Water to Create Plasma
Replies: 5
Views: 440

Re: EM Waves in Salt Water to Create Plasma

Not sure what you are trying to say with the bit about a neon sign being a plasma (when operating - rather obviously true.) Of course saltwater is a conductor due to its ions (chemical dissassociation, not electrically generated so it is NOT a plasma.) This is, again, obvious to anyone with a knowle...
by Dennis P Brown
Mon Dec 30, 2019 1:36 pm
Forum: Vacuum Technology (& FAQs)
Topic: First ever Turbo experience
Replies: 21
Views: 2087

Re: First ever Turbo experience

In your picture (your circled item), that appears to be the access port for the bearing oil wick. I added a few drops of oil to the wick at that location in my unit (it was dated 1988 and never serviced so I figured it needed new oil; hey, the unit, cable and controller ran all of $10), resealed the...
by Dennis P Brown
Tue Dec 03, 2019 8:08 pm
Forum: FAQs: Vacuum Technology
Topic: FAQ - Sealing a conflat flange and flanges in multiples
Replies: 10
Views: 506

Re: FAQ - Sealing a conflat flange and flanges in multiples

At red hot in air, what little oxygen the water might add (if any) is so many orders of magitude below what heating copper to that temp in air would already create is laughable. So, water isn't the issue here, I'd hazard to guess ( :) ). For high vac work (not a fusor), those copper seals are one an...
by Dennis P Brown
Tue Dec 03, 2019 7:51 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Steel or aluminum baseplates and other questions
Replies: 7
Views: 498

Re: Steel or aluminum baseplates and other questions

Aluminum is the best choice for 99.9% of people since hand drills and off-the-self hardware store drill bits (cheap chinese) can be used to drill holes. Steel isn't a metal most people can handle since high end drill bits and oil as well as a press are ussally required and even then, it is difficult...
by Dennis P Brown
Thu Nov 28, 2019 10:35 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor construction questions
Replies: 11
Views: 886

Re: Fusor construction questions

From posts by others that generate their deuterium from heavy water, they (and others here in the know) indicate that it is essential to use drying agents for the gas; otherwise, fusion will mostly fail.
by Dennis P Brown
Wed Oct 16, 2019 12:42 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Non-Corrosive and/or Dielectric Liquid Cooling?
Replies: 16
Views: 1755

Re: Non-Corrosive and/or Dielectric Liquid Cooling?

I will mention that propane is an excellent heat absober (better than water) and works great as a coolant; while not as hazardous as hydrogen, it is explosive in air (in the right mixture ratio's) so it must be used with extreme care and no leaks can occur. I have built a number of refrigerator syst...
by Dennis P Brown
Wed Oct 16, 2019 12:31 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: dynamic fusor patent, Salvatore Pais
Replies: 16
Views: 2822

Re: dynamic fusor patent, Salvatore Pais

A few more "words" on the various subjects mentioned here. The start of the universe neither required fusion nor any energy input (that we understand in the slightest) but this certainly say's there is more to the universe than our current physics understanding - in fact, all energy currently or pre...