Search found 21 matches

by jcs78227
Wed Oct 26, 2011 9:19 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Deuterium Lecture bottle
Replies: 26
Views: 10866

Re: Deuterium Lecture bottle

<r>We use Sigma-Aldrich at work, but the obvious caveat already pointed out applies. For individuals, Airgas (airgas.com) is preferred at least by me for amateur work and a few others. Matheson Tri-Gas (mathesongas.com) has shipped to me as well. These are are heavy duty gas suppliers for industry, ...
by jcs78227
Thu Sep 08, 2011 4:53 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: homebuilt neutron source?
Replies: 19
Views: 5509

Re: homebuilt neutron source?

<t>Spencer DePue wrote:<br/> <br/> > Yttrium 90: 2279800 Mev to joules: 3.652643877e-13 joules x 20000 Tbq/gram= 7305 joules<br/> > plus other decay energies from Sr 90 and occasional gamma ray.<br/> <br/> Careful on your math and units. The way you have it written, Yttrium-90 has a value of over tw...
by jcs78227
Sun Jun 19, 2011 3:02 am
Forum: Fusion --- Past, Present, and Future
Topic: Taylor Wilson makes slashdot
Replies: 5
Views: 3590

Re: Taylor Wilson makes slashdot

<t>Congraulations to Taylor.<br/> <br/> I don't envy the position of have the typical "haters" or the "hit-and-run" commentators make the work seem less than it is. Some feel he's a danger, others don't think it's that special (graduates of Wikipedia University), and some are even correcting his wor...
by jcs78227
Thu Jun 09, 2011 7:45 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Inquiry response from LND - 3He tube
Replies: 20
Views: 5432

Re: Inquiry response from LND - 3He tube

<r>Following up on my post of the article on the He-3 shortage: is this the sound of the other shoe dropping?...<br/> <br/> Communication Lapse Fueled Helium-3 Gap<br/> <br/> "A serious lack of communication between agencies in the Department of Energy caused the present shortage of helium-3, accord...
by jcs78227
Tue May 10, 2011 2:09 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Inquiry response from LND - 3He tube
Replies: 20
Views: 5432

Re: Inquiry response from LND - 3He tube

Gone indeed...current U.S. prices are "set at $600/L for govt. users and $1000/L for commercial users."

The U.S. is scrambling for methods to recover more 3He from existing tritium stockpiles.

Attached is a decent article on recent developments.

-J
by jcs78227
Sun Mar 13, 2011 3:18 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Japan to vent 'slightly' radioactive 'vapor' from troubled nuclear power plant
Replies: 21
Views: 5985

Re: Japan to vent 'slightly' radioactive 'vapor' from troubled nuclear power plant

<t>Carl,<br/> <br/> Thanks for expanding on the problem and providing photos to boot.<br/> <br/> I took a press release and understood that the reactor in question, at least the worst reactor, was a PWR; apparently they were mistaken and I perpetuated that mistake.<br/> <br/> You mentioned what I ha...
by jcs78227
Sat Mar 12, 2011 8:52 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Japan to vent 'slightly' radioactive 'vapor' from troubled nuclear power plant
Replies: 21
Views: 5985

Re: Japan to vent 'slightly' radioactive 'vapor' from troubled nuclear power plant

<t>Frank S. wrote:<br/> > Agreed, but even with a scramed reactor, cooling water is necessary. The decay products are the culprits as their energy has to go somewhere and that is into heat and will continue to do so. It is not a question of if one of these reactors will release radiation, but how mu...
by jcs78227
Wed Feb 02, 2011 9:36 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Succesful sodering of stainless steel with standard electrical solder
Replies: 9
Views: 3518

Re: Succesful sodering of stainless steel with standard electrical solder

<t>I meant to add that I don't think anything disastrous would come of using solder, especially if one had taken the time to do it the best way possible to get clean results. The nature of the structures involved coupled (no pun intended) with the fact you are working with negative pressures would m...
by jcs78227
Wed Feb 02, 2011 2:31 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Succesful sodering of stainless steel with standard electrical solder
Replies: 9
Views: 3518

Re: Succesful sodering of stainless steel with standard electrical solder

<t>Congratulations on being innovative and trying a technique you were unsure of.<br/> <br/> I would be wary of trying to use any soldering process (whatever the method, material, flux, etc.) for jobs where you are joining SS. Along with the difficulty in maintaining a uniform heat to allow the sold...
by jcs78227
Wed Jan 12, 2011 4:16 am
Forum: Interesting Links
Topic: Fermi-thunderstorms
Replies: 1
Views: 2262

Re: Fermi-thunderstorms

<t>That was a good write up & worth reading...thanks for sharing!<br/> <br/> Maybe I'm being pedantic, but technically speaking, the photons released from an annihilation event are not gamma rays since they do not originate from the nucleus.<br/> The article say calls them gamma rays in this exc...