Search found 1006 matches

by Adam Szendrey
Wed Mar 09, 2016 5:06 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Fission-Fusion Hybrid Calculations
Replies: 11
Views: 8670

Re: Fission-Fusion Hybrid Calculations

Dennis, " there are zero applications for a nuclear reactor in space" Even if you add "at least in Mars orbit" , this is a very ...bold statement...one with which I strongly disagree. I'll assume you mean "right now", but quite honestly the status quo in space exploration, while absolutely astonishi...
by Adam Szendrey
Tue Mar 08, 2016 9:17 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Fission-Fusion Hybrid Calculations
Replies: 11
Views: 8670

Re: Fission-Fusion Hybrid Calculations

U-235 has very low activity (very long half life), it's fairly harmless (apart from being a heavy metal, hence toxic). Pu-239 (high grade) is an alpha emitter, not particularly dangerous in that regard if handled correctly, but it's poisonous to the body, and if a Pu-239 contaminated dust particle s...
by Adam Szendrey
Sun Mar 15, 2015 8:11 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Solderless Grid Construction
Replies: 7
Views: 8051

Re: Solderless Grid Construction

Hmm, somehow I went totally by this post back in the day. I used the same grid structure back in 2006, with the difference that I added a single "blob" of solder at the "north pole" to make it more robust. I didn't make a custom barrel, I simply used the hole in the connector of the spark plug that ...
by Adam Szendrey
Sun Mar 15, 2015 1:56 am
Forum: FAQs: Neutron - Radiation Detection
Topic: FAQ - Moderators, Neutron moderation, what it does, how to do it, why do it?
Replies: 7
Views: 8577

Re: FAQ - Moderators, Neutron moderation, what it does, how

Well, somehow it was kind of "lost" as I don't see it here (or it had errors in it, and I wasn't told), but way back in 2004 I did a moderator thickness calculation ( I actually named it FAQ - neutron moderators originally, I think it was renamed later by the admins). I see there is one above here a...
by Adam Szendrey
Thu Mar 05, 2015 7:34 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Half a million volt fusor... Am I crazy?
Replies: 8
Views: 4658

Re: Half a million volt fusor... Am I crazy?

I'm sure I don't need to say this , but it can't be stressed enough...The voltages you put forward along with the potential power capability of your proposed power supply is an absolutely, instant kill combination, and a major fire hazard, not to mention the shine from the reactor (x-rays). Shieldin...
by Adam Szendrey
Wed Mar 04, 2015 11:02 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Fission-Fusion Hybrid Calculations
Replies: 11
Views: 8670

Re: Fission-Fusion Hybrid Calculations

It will breed, but as said above, quite slowly. Your design is pretty much the same then, but with a spherical geometry. I chose cylindrical because it's simpler to do from an engineering standpoint. Note that typically the total number of neutrons you get from the reactor per unit time is given whe...
by Adam Szendrey
Wed Mar 04, 2015 7:13 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Fission-Fusion Hybrid Calculations
Replies: 11
Views: 8670

Re: Fission-Fusion Hybrid Calculations

Not sure there is any point in using U-233 in a fission-fusion hybrid...why build a hybrid? If the fusion device has a high neutron flux you could use it to breed U-233 from thorium, and then use that U-233 in a reactor, preferably a molten salt reactor, or something. But the latter can actually the...
by Adam Szendrey
Sat Feb 28, 2015 8:54 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: 60 kV feedthrough design?
Replies: 9
Views: 5644

Re: 60 kV feedthrough design?

Richard, I was actually looking at buying a 30 kV feedthrough earlier (it costs around 200 dollars) , and I did notice that if you double the voltage rating you end up having to pay almost 6 times as much! I do wonder if this really is justified, but then again I don't design HV feedthroughs.
by Adam Szendrey
Thu Feb 26, 2015 11:17 pm
Forum: Images du Jour
Topic: Archived - New light
Replies: 8
Views: 3205

Re: Archived - New light

Thanks Richard! That makes perfect sense. Now I kind of recall reading about that, my memory failed me!
by Adam Szendrey
Thu Feb 26, 2015 11:08 pm
Forum: FAQs: Vacuum Technology
Topic: FAQ - Turbo pump versus Diffusion pump
Replies: 7
Views: 10675

Re: FAQ - Turbo pump versus Diffusion pump

Indeed! I still find a lot of, relatively, cheap diffs on ebay though, but that will probably change eventually. Used turbos , in various "unknown but turns freely" states are still kind of expensive, and I rarely see one that is complete, exactly as you wrote. I was pondering about this by the way....