Search found 62 matches

by raneyt
Sat Apr 16, 2005 2:57 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Isotope Cartridge Type Reactors
Replies: 18
Views: 4891

Re: Isotope Cartridge Type Reactors

<t>Hi Guys,<br/> <br/> Maybe a little late in this thread, but I’d like to briefly address two of the disparate topics discussed herein: (1) converting methane to higher hydrocarbons; (2) “small” nuclear power sources under 1MW. <br/> <br/> Methane first. Yes, apparently, any feedstock containing bo...
by raneyt
Thu Apr 07, 2005 11:52 pm
Forum: Vacuum Technology (& FAQs)
Topic: Slightly off topic: pinch off tool
Replies: 18
Views: 6316

Re: Slightly off topic: pinch off tool

<t>Roberto,<br/> <br/> Not 'off topic' at all! Disclaimer: I haven’t done this. The reference: A. Roth, Vacuum Sealing Techniques, Pergamon Press Ltd., Oxford, 1966, pp. 231-233. The summary below is not a verbatim copy.<br/> <br/> Cold sealing-off of copper & copper alloy tubulations. The tube ...
by raneyt
Fri Apr 01, 2005 12:05 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Quickky question-assembly tecnique
Replies: 2
Views: 2409

Re: Quickky question-assembly tecnique

<t>Mike,<br/> <br/> Silver brazing is a good means to seal different vacuum components, as other folks stated. However, the silver-braze sealing of large flanges is problematic. Brazing or welding a stainless steel hemisphere to a large vacuum flange is better done with tungsten inert gas (TIG) weld...
by raneyt
Sat Mar 05, 2005 1:37 pm
Forum: Vacuum Technology (& FAQs)
Topic: SOCIETY OF AMATEUR SCIENTISTS-VACUUM PRESENTATION (FROM RANEY)
Replies: 4
Views: 2245

SOCIETY OF AMATEUR SCIENTISTS-VACUUM PRESENTATION (FROM RANEY)

<r>Guys,<br/> <br/> Hope you are all doing well. You are probably aware that the Society of Amateur Scientists had their annual amateur science conference in January 2005.<br/> <br/> So, if you go to: <URL url="http://www.sas.org">http://www.sas.org</URL>, you’ll find the various presentations onlin...
by raneyt
Sat Feb 26, 2005 9:35 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Tungsten Wire Soruce?
Replies: 9
Views: 3100

Re: Tungsten Wire Soruce?

<r>Brian,<br/> <br/> I've bought tungsten wire from Small Parts, Inc., in the past. They are somewhat expensive, but reliable & they sell in small quantities. You can find them at:<br/> <br/> <URL url="http://www.engineeringfindings.com">http://www.engineeringfindings.com</URL><br/> <br/> Their ...
by raneyt
Sat Feb 26, 2005 9:20 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: FROM RANEY EBERLINE GM COUNTER
Replies: 1
Views: 1951

FROM RANEY EBERLINE GM COUNTER

<t>Guys,<br/> <br/> Now that I have the new computer & digial camera, I'll finally posting some photos of things I may have mentioned a while ago.<br/> <br/> This is the Eberline GM counter I bought off eBay a couple of months back. It works great & we even calibrated it at Richard Hull's la...
by raneyt
Fri Feb 25, 2005 11:10 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Work req'd to move electron through magnetic field? can't seem to figure it out!!
Replies: 11
Views: 5023

Re: Work req'd to move electron through magnetic field? can't seem to figure it out!!

<t>Todd,<br/> <br/> I echo what Frank & Richard stated about work done on the electron. <br/> <br/> Some points to remember: if the electron path is parallel to a magnetic field 'line', the electron will trace a helical path around the field line.<br/> <br/> If the electron path is perpendicular...
by raneyt
Sun Jan 16, 2005 12:40 pm
Forum: Vacuum Technology (& FAQs)
Topic: high vac req'd for mean free path in colliders
Replies: 7
Views: 2675

Re: high vac req'd for mean free path in colliders

<t>Todd,<br/> <br/> Hope you are well. As in any vacuum system, size matters. Evacuating a huge accelerator is no different than evacuating a 6” diameter Fusor chamber. At least in principle. They just use bigger pumps with tremendous flow rates. <br/> <br/> However, the important factor (all things...
by raneyt
Sun Jan 16, 2005 12:33 pm
Forum: Vacuum Technology (& FAQs)
Topic: O-Ring
Replies: 1
Views: 2131

Re: O-Ring

<t>Hayo & Mark,<br/> <br/> Hope you guys are well. Not sure about your local resources for Viton O-rings. I've gotten mine from McMaster-Carr, a US-based industrial supply company. You can order online; good service & quality product.<br/> <br/> That being said, I generally select the O-ring...
by raneyt
Fri Dec 31, 2004 12:16 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Building lead wall of roofing lead rolls ?
Replies: 4
Views: 2008

Re: Building lead wall of roofing lead rolls ?

<t>Peter,<br/> <br/> Just a little update. "Radiology Physics" (Robertson, 1941), has a table of lead thicknesses to absorb an x-ray of a given energy.<br/> <br/> For example, 1mm for 75kV, 2mm for 125kV, 4mm for 200kV, etc. Again, it's probably better to check current health physicists guidelines f...