Search found 10874 matches

by Richard Hull
Sun Sep 09, 2001 7:35 pm
Forum: Vacuum Technology (& FAQs)
Topic: valve flange type?
Replies: 3
Views: 2255

Re: valve flange type?

That gate valve was designed to go on CVCs small 2" diff pump which came in two versions a 4 bolt and a 6 bolt flanged item. You have the 6 bolt version's gate valve.

Richard Hull
by Richard Hull
Sun Sep 09, 2001 7:21 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Bicron phosphor
Replies: 3
Views: 1543

Re: Bicron phosphor

I have posted a much expanded list of phosphors in the "Files" forum in XL format.

Richard Hull
by Richard Hull
Sun Sep 09, 2001 7:18 pm
Forum: Files
Topic: Phosphors -XL
Replies: 0
Views: 3363

Phosphors -XL

This file is an expanded list of Phosphors extracted and edited from a text on vacuum tube manufacture.
It is in XL format.

Richard Hull
by Richard Hull
Sun Sep 09, 2001 5:20 am
Forum: Announcements and Administration Archive
Topic: Removing Image Posts
Replies: 2
Views: 1258

Re: Removing Image Posts

Richard, I am an administrator, albeit a poor excuse for one. I will dispatch them for you.

I was of the opinion that if you posted something you could, with your password, delete your own posts. The perfesser or Ryan might know more.

Richard Hull
by Richard Hull
Sun Sep 09, 2001 5:16 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Fusion - 'Untwisting' particles?
Replies: 47
Views: 7040

Re: Fusion - 'Untwisting' particles?

<t>I find orbiting electrons or wavey electrons loitering about in shells all poor physical concepts. <br/> <br/> The shell idea is a good one for crude understanding and computational work, but no one really knows the reality of what the electrons are or how they are situated about an atomic nucleu...
by Richard Hull
Fri Sep 07, 2001 2:25 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Fusion - 'Untwisting' particles?
Replies: 47
Views: 7040

Re: Fusion - 'Untwisting' particles?

<t>I'm always glad to hear theorectical thoughts, especially when they cut through the BS of lock step standard model stuff. I have expounded here before and will not expand on those thoughts. <br/> <br/> It is very important that a firm foundation be placed for understanding core issues at the sub ...
by Richard Hull
Fri Sep 07, 2001 5:16 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Bicron phosphor
Replies: 3
Views: 1543

Re: Bicron phosphor

<t>I just received the Bicron P-4 ZnS:Ag phosphor.<br/> <br/> I made up a nice little 2" screen with about 1/2 gram of the material.<br/> <br/> In a darkened room, after about 10 minutes, once my eyes were dark adapated, I brought a 1uc Am241 source near the screen and instantly a round area was lit...
by Richard Hull
Thu Sep 06, 2001 7:23 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Alternative neutron detection method
Replies: 10
Views: 2322

Re: Alternative neutron detection method

<t>Jurgen is correct in his surmise that an easy neutron counter would make the second stage (neutron producing fusor) a lot more attractive to aspirants and would-be fusioneers.<br/> <br/> I call it the neutron detection wall. It is no fun making neutrons and claiming fusion unless you can count th...
by Richard Hull
Thu Sep 06, 2001 3:34 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: PMT Shielding Questions
Replies: 5
Views: 1785

Re: PMT Shielding Questions

PVC can be used as a housing, but it would have to be completely plated or covered with cover foil. I have done this and it works. If not covered, the tube will give you a FIT with electrostatic buildup. The advantages are low cost and super machinablitiy/tappability.

Richard Hull
by Richard Hull
Thu Sep 06, 2001 3:19 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Alternative neutron detection method
Replies: 10
Views: 2322

Re: Alternative neutron detection method

<t>Richard Hester seems determined to beat th' system and is always ready to skin th' cat a different way. I like that. I hope to listen and learn from his efforts as they progress. <br/> <br/> I have to be a devil's advocate lest the wild eyed spend themselves hopelessly upon the rocks rather than ...