Search found 8 matches

by Ryan Copeland
Fri May 25, 2018 4:46 pm
Forum: Images du Jour
Topic: Neutron Club Application - Erik Smith
Replies: 5
Views: 2692

Re: Neutron Club Application - Erik Smith

Thank you for the info Erik. Would you happen to have one that you do not need, or could you point me towards the eBay seller please?
by Ryan Copeland
Thu May 24, 2018 4:27 pm
Forum: Images du Jour
Topic: Neutron Club Application - Erik Smith
Replies: 5
Views: 2692

Re: Neutron Club Application - Erik Smith

Hi Erik, I'm building a similar chamber and was wondering where you got your HV feedthrough.
Nice job!
by Ryan Copeland
Thu May 24, 2018 3:58 pm
Forum: Images du Jour
Topic: First Plasma
Replies: 11
Views: 4600

Re: First Plasma

That vacuum chamber was one that I was just using for plasma generation. I am going to purchase a 2.75 inch conflat cross for the actual chamber with the proper conflat fittings.
by Ryan Copeland
Wed May 23, 2018 1:29 pm
Forum: Images du Jour
Topic: First Plasma
Replies: 11
Views: 4600

Re: First Plasma

Yes that gauge came with the vacuum pump a long time ago and I am looking for one that will work for fusion applications. The gauge would just tell me if I got to a low enough pressure for plasma to form.
by Ryan Copeland
Wed May 23, 2018 2:37 am
Forum: Images du Jour
Topic: First Plasma
Replies: 11
Views: 4600

Re: First Plasma

I am certain the gauge is broken and is leaking oil into the chamber. When I pull a vacuum for about 5 minutes, the gauge still reads zero while plasma is created. Also at these pressures the plastic that is used to view the numbers is being pulled into a concave shape and tiny bubbles can be seen r...
by Ryan Copeland
Mon May 21, 2018 12:16 am
Forum: Images du Jour
Topic: First Plasma
Replies: 11
Views: 4600

Re: First Plasma

Thanks for the information Preston! I will continue to try to get my chamber down to the specifications on my pump (0.3Pa or ~2.75 microns) to hopefully achieve a better effect.
by Ryan Copeland
Sat May 19, 2018 3:59 am
Forum: Images du Jour
Topic: First Plasma
Replies: 11
Views: 4600

Re: First Plasma

Thank you Richard! I was also wondering if this would be enough to get into plasma club or would I have to drop the pressure even lower?
by Ryan Copeland
Fri May 18, 2018 11:14 pm
Forum: Images du Jour
Topic: First Plasma
Replies: 11
Views: 4600

First Plasma

I was running some experiments with a steel vacuum chamber (really a steel cooking pot with acrylic on top) and I decided to make a quick grid from copper wire and use the vacuum line as a HV feed-through. My supply is the United Nuclear 25KV DC power supply and runs off a motorcycle battery. My pum...