Search found 493 matches

by ian_krase
Mon Dec 24, 2018 9:57 am
Forum: Images du Jour
Topic: Canal Ray pictures
Replies: 19
Views: 1463

Re: Canal Ray pictures

A kanal Ray tube for use as an ion gun is probably gonna be homemade out of glass tube and parts.

Here: http://www.rapp-instruments.de/Beschleu ... neugen.htm is an example of a canal Ray tube being used for fusion. This site is by Thomas Rapp, who has posted here as "Rapp Instruments".
by ian_krase
Sun Dec 23, 2018 6:08 pm
Forum: Announcements and Site Administration Topics
Topic: Straw Poll / Proposal for San Francisco Area mini-meetup
Replies: 32
Views: 2643

Re: Straw Poll / Proposal for San Francisco Area mini-meetup

Ok, it sounds like South Bay, a Saturday in January is the plan.

I'll come up with a specific date, time, location soon.
by ian_krase
Thu Dec 20, 2018 2:13 am
Forum: Images du Jour
Topic: Canal Ray pictures
Replies: 19
Views: 1463

Re: Canal Ray pictures

Yes. They are 1.5 inch kitchen sink drain fittings (made of brass, chrome or nickel plated) brazed into standard KF fittings. They are sealed with viton o-rings and each has a metal internal stop ring. They work... Sort of. For a fraction the cost of Ultratorr which would be the proper way to do thi...
by ian_krase
Mon Dec 17, 2018 8:33 pm
Forum: Announcements and Site Administration Topics
Topic: Straw Poll / Proposal for San Francisco Area mini-meetup
Replies: 32
Views: 2643

Straw Poll / Proposal for San Francisco Area mini-meetup

I believe a number of fusioneers besides myself live in or near the San Francisco Bay area. I'm interested in having a mini-meetup some time - at the simplest, we'd all just go and get lunch or dinner at a restaurant some day and chat about fusion, science, vacuum, high voltage, and whatever else. I...
by ian_krase
Mon Dec 17, 2018 10:19 am
Forum: Images du Jour
Topic: Canal Ray pictures
Replies: 19
Views: 1463

Canal Ray pictures

Here's a quick little demo I whipped up of Canal Rays. I suspect many people who have worked only with fusors won't be familiar with this, because a fusor-type chamber simply isn't really set up to demonstrate this phenomenon. Canal Rays (or Kanalstrahlen in Science German) are useful for making ion...
by ian_krase
Sun Dec 16, 2018 1:01 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Flexible Deuterium Gas Input Hose?
Replies: 3
Views: 461

Flexible Deuterium Gas Input Hose?

I'm curious if anybody has any advice on a flexible hose setup for introducing gas into their vacuum system. Normally one uses fixed metal tubing between the metering valve and the fusor -- which works well for most fusors but is inconvenient (even if bend-by-hand refrigeration tube is used) for vac...
by ian_krase
Sat Dec 15, 2018 10:24 am
Forum: New User Chat Area
Topic: What is swagelok?
Replies: 6
Views: 603

Re: What is swagelok?

Oddly, all of the Swagelock valves I bought on Ebay were pretty cheap. I have an SS-BMG which is pretty nice as a metering valve, it has a full bellows seal. Interesting fact: there are some swagelok "stores" / warehouses / showroom type places, and some of these places will gladly sell you Swagelok...
by ian_krase
Sat Dec 15, 2018 7:50 am
Forum: New User Chat Area
Topic: What is swagelok?
Replies: 6
Views: 603

Re: What is swagelok?

Swagelok stuff is expensive enough that a mere *discount* isn't enough to gain you that much.

If you can get Swagelok parts cheaply, though, you could make your entire gas inlet line using them.
by ian_krase
Sat Dec 15, 2018 7:43 am
Forum: New User Chat Area
Topic: What is swagelok?
Replies: 6
Views: 603

Re: What is swagelok?

Swagelok is a company that makes tube fittings, pipe fittings (these are NOT the same thing), and valves. Many of their products are useful for fusors! However, they're fairly expensive. Some of their products have imitations that are much cheaper and just as good -- "A-lok", "Yor-Lok", "Let-Lock", ...
by ian_krase
Fri Nov 30, 2018 9:01 am
Forum: Ion Gun Design and Construction (& FAQs)
Topic: Electron Impact Ion Source pictures wanted
Replies: 3
Views: 1027

Re: Electron Impact Ion Source pictures wanted

I have gotten so far as to pick up on the "box" structure of these ion sources. I'm curious whether you have a clear idea of how the gas is injected -- is there just a tube going into the side of the ion box? How large would you say the exit and entry holes typically are? Are they equal to each other?