Search found 90 matches

by John Taylor
Sat Jan 28, 2012 11:15 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Interesting idea for a fusion power plant
Replies: 10
Views: 4443

Re: Interesting idea for a fusion power plant

The hydrogen bomb uses fission to initiate a much more powerful fusion reaction in hydrogen isotopes. To use Boron in such a device would be very difficult and the VERY low efficiency of the Proton-Boron reaction would not be likely to improve the yield appreciably.
by John Taylor
Fri Jan 27, 2012 8:10 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Interesting idea for a fusion power plant
Replies: 10
Views: 4443

Interesting idea for a fusion power plant

<t>The other night I was looking through the 1966 edition of "Introduction to Nuclear Physics" by Harald A. Enge of MIT. I found the following humorous idea for a fusion-based steam generating plant:<br/> <br/> "On a very large scale, it is possible to use the catastrophic process in a semi-controll...
by John Taylor
Wed Dec 21, 2011 6:26 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Grid stalk (insulator) losses
Replies: 4
Views: 1314

Re: Grid stalk (insulator) losses

<t>Thanks Chris for the reply. I really brought this up more as something to think about than something for an in-depth study. I ran across a paper sometime back talking about thermal emission of ion impacted insulators and thought that it was interesting. While I don't believe that a gridded IEC de...
by John Taylor
Wed Dec 21, 2011 4:25 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Grid stalk (insulator) losses
Replies: 4
Views: 1314

Grid stalk (insulator) losses

<t>There has been extensive research and discussion about grid transparency and its relation to collisional losses, but does the insulating stalk contribute to losses when ions/electrons collide with it? I know I can visibly see the results of heating on the small tungsten wires of my grid, but the ...
by John Taylor
Sat Nov 05, 2011 4:44 pm
Forum: Ion Gun Design and Construction (& FAQs)
Topic: RF ion source sees first light
Replies: 25
Views: 16030

Re: RF ion source sees first light

<t>I would like to see how a stainless version would perform. will you TIG weld the places that are soldered on the current version?<br/> <br/> I would like to replicate your design in stainless as well. Would you be willing to share your dimensions so I could attempt to machine the parts to your al...
by John Taylor
Fri Nov 04, 2011 6:01 pm
Forum: Ion Gun Design and Construction (& FAQs)
Topic: RF ion source sees first light
Replies: 25
Views: 16030

Re: RF ion source sees first light

Carl,
I know this is an older thread but I wondered how this particular ion gun performed as far as sputtering goes. Has the copper given you any problems?
by John Taylor
Fri Oct 07, 2011 3:17 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Using radiation monitor with BF3 tube?
Replies: 5
Views: 1763

Re: Using radiation monitor with BF3 tube?

<t>Thanks for the link to the BF3 and Ludlum link. I had looked at it earlier, but didn't know if that particular portable monitor was tailored for neutron tubes or if any could be used ( with correct mods, of course). I think I will just hook my RM-14 up to my BF3 tube and look at the input with a ...
by John Taylor
Thu Oct 06, 2011 9:34 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Using radiation monitor with BF3 tube?
Replies: 5
Views: 1763

Using radiation monitor with BF3 tube?

<t>Has anyone tried using a portable radiation monitor (such as an eberline RM-14) with a boron lined neutron tube? Of course, this would be with the internal high voltage power supply disconnected and an appropriate voltage source applied to the tube and with the input capacitor change to a larger ...
by John Taylor
Sun Jul 31, 2011 12:17 am
Forum: Vacuum Technology (& FAQs)
Topic: Diffusion pump cleaning
Replies: 3
Views: 1694

Re: Diffusion pump cleaning

Thanks John for the advice. A lot of the staining came off nicely with the acetone, some required steel wool. I will now clean it with isopropanol and reassemble it. Is fire gum a kind of high temp cement? I'm not familiar with it.
by John Taylor
Fri Jul 29, 2011 4:20 am
Forum: Vacuum Technology (& FAQs)
Topic: Diffusion pump cleaning
Replies: 3
Views: 1694

Diffusion pump cleaning

<t>I just received a diffusion pump that I purchased cheaply on eBay and am wanting to clean it up. Is there any problem with using very fine steel wool to clean all of the inside stainless parts? Will any oil, etc. residue in the steel wool contaminate the pump? Obviously, i would clean the parts t...