Search found 10992 matches

by Richard Hull
Mon Dec 17, 2018 5:13 am
Forum: Images du Jour
Topic: Mass Flow Controller
Replies: 1
Views: 37

Re: Mass Flow Controller

Some times a great buy on one end of things leads to a fortune spent to implement that fabulous buy. This is typical and not unusal at all in seeking out stuff on the cheap, falling into great deals that soon fade from greatness as the wallet empties trying to get them to work and mate with our vacu...
by Richard Hull
Mon Dec 17, 2018 4:49 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Flexible Deuterium Gas Input Hose?
Replies: 3
Views: 56

Re: Flexible Deuterium Gas Input Hose?

Proper metal flex with VCR fittings is super nice and highly recommended by the 1 person in 300 who use it from gas line. Swagelock fittings with 1/8 copper common tubing for a few dollars has served me for years. I find it tough to believe that any form of "stress" on a properly installed gas fitti...
by Richard Hull
Sat Dec 15, 2018 7:52 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Deuterium Lecture bottle
Replies: 17
Views: 3860

Re: Deuterium Lecture bottle

My first bottle of D2 was purchased back in 1998 through the local Welders Supply. I prepaid them at the store, got a receipt and a week or so later was called to come pick it up. When I picked it up, they helped me identify the fitting I needed to mate the bottle to my gauge. They had it in stock. ...
by Richard Hull
Sat Dec 15, 2018 3:56 am
Forum: New User Chat Area
Topic: What is swagelok?
Replies: 6
Views: 166

Re: What is swagelok?

Swagelock couplings are typically used for gas port entry and gas plumbing line connections at the amateur level. Pros tend to use VCR fittings at 4 times the price. Swagelock also makes some valves for gas lines and thimble metering valves as well.

Richard Hull
by Richard Hull
Wed Dec 12, 2018 9:18 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Overview of D-D and D-T Fusion Detectors
Replies: 16
Views: 1474

Re: Overview of D-D and D-T Fusion Detectors

A GM tube in the vacuum would measure only x-rays and probably swamp out to a gentle arc condition, which typically ends the tube's life. A GM counter outside of your beam device would also go crazy as X-rays penetrate the device as you approach fusion voltages. Forget any attempt to use a GM tube o...
by Richard Hull
Wed Dec 12, 2018 9:08 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Creation, usage, and destruction of a cathode
Replies: 2
Views: 193

Re: Creation, usage, and destruction of a cathode

Very nice setup for a demo device. Enzo is learning that the operation of even a demo fusor requires full time and attention to every detail. He did a great job of fusing his new grid. I like his method of making a simple, yet very effective grid for his demo system. I am glad dad is around to sheph...
by Richard Hull
Tue Dec 11, 2018 10:09 pm
Forum: Fusion --- Past, Present, and Future
Topic: Wendelstein 7-X has successfully finished its second major experimental run
Replies: 13
Views: 677

Re: Wendelstein 7-X has successfully finished its second major experimental run

Energy discussion are fine as long as they don't get political. Energy is a major issue and fusion is at a forefront of promised solutions, yet to be delivered. None of us want increased energy prices, but they will surely come. John, thanks for the update. I did not see the erased part of the text....
by Richard Hull
Tue Dec 11, 2018 9:40 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Gamma-ray Spectrum, CP-1 Graphite Memento
Replies: 14
Views: 537

Re: Gamma-ray Spectrum, CP-1 Graphite Memento

Nuc Lead is a company that deals in many lead products. One is "virgin lead" It costs a good bit extra as it is lead that was mined over a hundred years ago and is usually in the form of buried pipe, underground electrical buried covering, ancient ballast culled from old sailing ships, etc. I may ha...
by Richard Hull
Tue Dec 11, 2018 5:00 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: A Thought Experiment on Ideal Conditions
Replies: 5
Views: 561

Re: A Thought Experiment on Ideal Conditions

Good fusors regularly hit the mega n/s mark. ( 2 million fusions/s +) Grid losses in any fusor is pitiably small. There are many other losses of greater import keeping the fusor from improving. These have been discussed at some length in past posts. The grid is of no real concern, loss-wise. Due to ...
by Richard Hull
Mon Dec 10, 2018 6:11 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Gamma-ray Spectrum, CP-1 Graphite Memento
Replies: 14
Views: 537

Re: Gamma-ray Spectrum, CP-1 Graphite Memento

As I understood it, there was no core in the classic sense in CP-1. Instead, the fuel was distributed all about and within the moderator in a manner that would allow moderation of purely natural uranium fission over the bulk of the volume. Explains the low power over a huge volume. I do not know how...