Search found 87 matches

by Dustin
Tue Sep 17, 2013 7:20 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Why the proportion of the Chamber and the Grid is 5:1?
Replies: 9
Views: 3026

Re: Why the proportion of the Chamber and the Grid is 5:1?

The document I posted reviews the optimisation efforts of 4 different sets of researchers all of which essentially reach the same conclusion, which is 1:2 ratio is better.(as much as 50%) some of these efforts were in smaller (20cm) anode which is 8" and up to 40kv and the ratio stll holds. The pres...
by Dustin
Mon Sep 16, 2013 2:05 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Why the proportion of the Chamber and the Grid is 5:1?
Replies: 9
Views: 3026

Re: Why the proportion of the Chamber and the Grid is 5:1?

Page 48 (and the rest of this document) has some useful info / data on grid ratio's vs neutron production.

http://fti.neep.wisc.edu/pdf/fdm1392.pdf

Steve.
by Dustin
Tue Oct 23, 2012 3:50 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: DEL RLPS-2-60R high voltage power supply specs?
Replies: 7
Views: 2652

Re: DEL RLPS-2-60R high voltage power supply specs?

Spellman seems to have bought a high voltage supply company called del, try them.
by Dustin
Tue Oct 02, 2012 3:56 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Effect of bias voltage on an He-3 tube's pulse height spectrum
Replies: 5
Views: 3155

Re: Effect of bias voltage on an He-3 tube's pulse height spectrum

This might give some clues,
www.cedengineering.com/upload/Radiation Detectors.pdf

page 16... limited proportional region.

Steve.

Wealth of info here.
by Dustin
Mon Aug 20, 2012 6:41 am
Forum: Images du Jour
Topic: Archived - From the Wayback Machine - Farnsworth dynode grid
Replies: 5
Views: 3116

Re: From the Wayback Machine

<r>I remember posting this "way back"<br/> Looks like the same one "new"<br/> Steve<br/> <br/> <br/> <URL url="http://www.fusor.net/board/viewtopic.php?f=6&t=2838&hilit=hirsch#p17345"><LINK_TEXT text="viewtopic.php?f=6&t=2838&hilit=hirsch#p17345">http://www.fusor.net/board/viewtopic....
by Dustin
Mon Jun 11, 2012 5:07 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: F.I.C.S. Construction
Replies: 50
Views: 12400

Re: F.I.C.S. Construction

Hi Steve,
Great to see you are still making progress.
I've found the needle valve can be a bit course, I use some capillary in series, you may have better control with the drilled aperture in series with the needle valve.
Best of luck
Steve.
by Dustin
Tue May 01, 2012 5:54 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Help with Arduino DAQ
Replies: 6
Views: 2413

Re: Help with Arduino DAQ

Or you could use one of these
http://labjack.com/u3
by Dustin
Tue Apr 24, 2012 6:21 pm
Forum: Fusion --- Past, Present, and Future
Topic: More fusion hype?
Replies: 15
Views: 6171

Re: More fusion hype?

<r>LENR in the news again, apparently with some validation,<br/> <br/> "Brillouin has had two significant independent validations of their scientific model and claims. One of those was by Los Alamos National Laboratories. The other was by Dr. Michael McKubre of Standford Research International (SRI)...
by Dustin
Mon Mar 19, 2012 4:52 pm
Forum: Vacuum Technology (& FAQs)
Topic: Edwards AIM-S-NW25 active gauge no responce?
Replies: 4
Views: 1893

Re: Edwards AIM-S-NW25 active gauge no responce?

<t>Sometimes you can get them to strike by tapping them with the screw driver handle, I have seen this done numerous times (@Varian). I would like to think this may be "vibration assisted electron emission " (lol) but suspect it has something to do with the moving field. I would not whack it into su...