Search found 271 matches

by Dan Knapp
Tue Oct 27, 2020 12:26 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Neutron Irradiated Dime REDUX
Replies: 11
Views: 728

Re: Neutron Irradiated Dime REDUX

Richard, Have you considered a thin layer of rhodium plating? There are various rhodium plating services available for jewelry at affordable prices.
by Dan Knapp
Tue Oct 13, 2020 12:55 pm
Forum: Items For Sale
Topic: RE: X-Ray transformer Philips 451210494553 Easy Diagnost Eleva room xray unit main HV transformer
Replies: 4
Views: 1055

Re: RE: X-Ray transformer Philips 451210494553 Easy Diagnost Eleva room xray unit main HV transformer

I looked at this listing out of curiosity. It appears to be a ferrite core transformer with four independent sections that are wired in series. Building a fusor supply from this transformer would not be a trivial undertaking.
by Dan Knapp
Mon Oct 05, 2020 8:11 pm
Forum: Interesting Links
Topic: MIT claim of fusion by 2025 proving LOL isn't just for the tweeter
Replies: 7
Views: 1711

Re: MIT claim of fusion by 2025 proving LOL isn't just for the tweeter

The seven papers in the special issue of the Journal of Plasma Physics are available online with open access: https://www.cambridge.org/core/journals/journal-of-plasma-physics/collections/status-of-the-sparc-physics-basis Much of the content of these papers is beyond my level of understanding, but t...
by Dan Knapp
Fri Oct 02, 2020 11:43 am
Forum: Interesting Links
Topic: MIT claim of fusion by 2025 proving LOL isn't just for the tweeter
Replies: 7
Views: 1711

Re: MIT claim of fusion by 2025 proving LOL isn't just for the tweeter

If you read the NYT article carefully, you will see that they just published seven peer reviewed papers in the Journal of Plasma Physics that support their design. I am painfully aware of the difference between a computer model and real hardware, but they have gone much further than most fusion comp...
by Dan Knapp
Thu Sep 17, 2020 11:41 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Earth-tech fusor from 1999
Replies: 2
Views: 436

Re: Earth-tech fusor from 1999

This is a very interesting description of this early fusor. Something I’ve not seen before was his use of the secondary of a neon transformer as a high voltage inductive filter.
by Dan Knapp
Fri Sep 11, 2020 12:37 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Effectiveness of water (H2O) on fast neutrons?
Replies: 3
Views: 559

Re: Effectiveness of water (H2O) on fast neutrons?

This has been discussed previously at length. Search “water as a neutron shield.”
by Dan Knapp
Thu Aug 27, 2020 2:10 am
Forum: Images du Jour
Topic: SonoFusion Setup
Replies: 6
Views: 964

Re: SonoFusion Setup

Frank
The paper you list is a 2005 report by Taleyarkhan and others. The Purdue investigation which found him guilty of misconduct was in 2008. The sonoluminescence effect is real; one can see that, but I’m not aware of any substantiating evidence for sonofusion.
by Dan Knapp
Wed Aug 26, 2020 2:39 am
Forum: Images du Jour
Topic: SonoFusion Setup
Replies: 6
Views: 964

Re: SonoFusion Setup

It is my understanding that the claims of sonofusion have been found to be false. An investigation of Taleyarkhan at Purdue found him guilty of research misconduct and his funding agency (Office of Naval Research) barred him from further funding. Is there something more recent that suggests this can...
by Dan Knapp
Mon Aug 10, 2020 12:15 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Vinyl tubes and j b weld
Replies: 4
Views: 592

Re: Vinyl tubes and j b weld

Loctite Hysol 1C. It has been discussed at length on this forum in the vacuum FAQ’s.
by Dan Knapp
Mon Aug 10, 2020 12:09 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Vinyl tubes and j b weld
Replies: 4
Views: 592

Re: Vinyl tubes and j b weld

Vac-Torr is a high vacuum epoxy seal that is designed for high vacuum use. There is a less expensive Loctite product that is an equivalent formulation, but the number escapes me at the moment. Anyone else remember?