Search found 226 matches

by Alex Aitken
Mon Feb 20, 2017 2:46 pm
Forum: New User Chat Area
Topic: How much does deuterium purity matter?
Replies: 5
Views: 1182

Re: How much does deuterium purity matter?

The question of H vs Ar is something I'd be happier with someone more experienced commenting on. I have read H flows differently (much faster) than other gasses. I have no idea how much it persists in the chamber between runs. Water on the walls can desorb when it feels like it, so it may make disch...
by Alex Aitken
Fri Feb 17, 2017 9:26 pm
Forum: New User Chat Area
Topic: How much does deuterium purity matter?
Replies: 5
Views: 1182

Re: How much does deuterium purity matter?

More experienced people than me will probably jump in (edit - and Frank has but he's not covered everything you've asked so I'm still posting). The main issue with electrolysis is that the gas is wet, and water in a vacuum system is widely regarded as a nightmare. It sticks to surfaces. Isotopic pur...
by Alex Aitken
Wed Feb 15, 2017 3:33 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Neutron Flux Calculation
Replies: 7
Views: 1598

Re: Neutron Flux Calculation

Richard has a recent reply in the new users area about this. The tube detects slow neutrons, so you need a calibration between detections in the exact setup you have (tube, moderator, bias, threshold) and the fast neutrons of the same energy that cause it. When you have a fast neutron flux reading y...
by Alex Aitken
Sat Feb 04, 2017 1:38 pm
Forum: New User Chat Area
Topic: cps/nv
Replies: 5
Views: 1146

Re: cps/nv

Also, an aspect I think David may have misunderstood, If a detector has a value of 64 cps/nv then it must (unless very strange things are going on) have a cross sectional area of at least 64 square centimetres, and each pulse is caused by a different neutron. Dividing by 64 cancels out detector area...
by Alex Aitken
Tue Nov 07, 2006 10:42 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Landscape
Replies: 17
Views: 3691

Re: Landscape

The best evidence is the fusor does not work that way.

The electric potential is the potential energy well.
by Alex Aitken
Sat Oct 28, 2006 2:18 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Inverter Microwave Oven circuit
Replies: 18
Views: 7214

Re: Inverter Microwave Oven circuit

Could the air gap be there to prevent the core saturating and the resultant current spike that might also kill the drivers?
by Alex Aitken
Sun Oct 15, 2006 11:53 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: D+D Cross section?
Replies: 15
Views: 3270

Re: D+D Cross section?

<t>The maximum cross section does not corrispond to the maximum power output, or the maximum reaction rate, so on their own, I'm not convinced they help much.<br/> <br/> DT fusion cross section peaks about 100kev deuteron energy. DD peaks about 2 Mev.<br/> <br/> Carl,<br/> When I search for H-2 d,* ...
by Alex Aitken
Thu Oct 05, 2006 10:42 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Proton Discussion
Replies: 25
Views: 4939

Re: Proton Discussion

<t>I think there is another chemistry point of view that also applies here. Reactions don't happen because the reactants are unstable, they happen because of the existance of a more stable state at the end.<br/> <br/> I do not think there is much milage in trying to explain neutron decay on the basi...
by Alex Aitken
Tue Oct 03, 2006 2:26 pm
Forum: Announcements and Administration Archive
Topic: Podcast - Lecture on Fusion by Dr Barry Green
Replies: 6
Views: 4304

Re: Podcast - Lecture on Fusion by Dr Barry Green

The solution to that may be to do it electrohydrodynamically. Send a current at 90 degrees to the field and the conductive material pumps itself.
by Alex Aitken
Thu Sep 28, 2006 8:43 am
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Proton Discussion
Replies: 25
Views: 4939

Re: Proton Discussion

IF the proton is complicated, then it is made up of smaller parts and therefore cannot be primary.