Search found 11 matches

by dmills
Fri Dec 14, 2007 11:17 pm
Forum: Vacuum Technology (& FAQs)
Topic: I think I just scored!
Replies: 4
Views: 2416

Re: I think I just scored!

<t>In the end I spoke to the seller on the phone and decided it was worth a punt.<br/> <br/> Pump, Controller and Cable arrived today and appear as described. <br/> <br/> The controller is used (as was stated) and is a OEM module with a rather annoying mains power and control connector so a little c...
by dmills
Tue Dec 11, 2007 3:04 pm
Forum: Vacuum Technology (& FAQs)
Topic: I think I just scored!
Replies: 4
Views: 2416

Re: I think I just scored!

Thats the plan.
by dmills
Tue Dec 11, 2007 12:12 am
Forum: Vacuum Technology (& FAQs)
Topic: I think I just scored!
Replies: 4
Views: 2416

I think I just scored!

<t>A Brand new Varian V60 plus controller for just under £200. <br/> Now to sort a backing pump, trap, chamber, instrumentation.... <br/> <br/> I figure a V60 should be quite sufficient for this sort of project if coupled to be chamber with a high conductance connection, and if not, well there are a...
by dmills
Sat Nov 25, 2006 6:39 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: OOPIC charged particle codes?
Replies: 2
Views: 2032

Re: OOPIC charged particle codes?

<r>I have now got it to compile, its graphics library depends on a particular version of TCL/TK which rapidly started a decent into dependency hell....<br/> <br/> Source Code is available at <URL url="http://ptsg.eecs.berkeley.edu/#Software">http://ptsg.eecs.berkeley.edu/#Software</URL><br/> <br/> F...
by dmills
Wed Nov 15, 2006 10:25 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: OOPIC charged particle codes?
Replies: 2
Views: 2032

OOPIC charged particle codes?

<t>Has anyone here had any luck with getting the OOPIC and XOOPIC charged particle EM simulation codes to compile?<br/> <br/> I ask because these have some interesting features like support for background gas loads and time varying EM fields. <br/> <br/> At the moment compilation is proving 'interes...
by dmills
Fri Apr 21, 2006 10:46 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: An observation about insulators in a conducting fluid
Replies: 3
Views: 2062

Re: An observation about insulators in a conducting fluid

<t>The point is that you probably DON'T benefit from the whole grid being an <br/> attractor (and definately don't benefit from the stalk soaking up ions).<br/> <br/> In the sort of geometry that is popular in these parts (small inner grid, large <br/> outer) you ideally want a "grid" that appears f...
by dmills
Wed Apr 19, 2006 11:16 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: An observation about insulators in a conducting fluid
Replies: 3
Views: 2062

An observation about insulators in a conducting fluid

<t>Hi all, <br/> I was playing with modelling some asymetric grids, and lacking the FEM <br/> software to do the job, settled on making then then immersing the test <br/> grids in salt water, applying a few volts AC and measuring the potential at <br/> varous points around the structure. <br/> <br/>...
by dmills
Wed Jun 08, 2005 10:39 pm
Forum: Vacuum Technology (& FAQs)
Topic: Any cryopump knowhow?
Replies: 2
Views: 1838

Re: Any cryopump knowhow?

<t>Dave Cooper wrote: <br/> > Hi Dan - <br/> > <br/> > The primary and expensive things of the Cryo-Pump are the <br/> compressor/refrigerator and obviously the tightness of the <br/> associated plumbing. The pumped gas condenser baffle <br/> assembly that the helium cools, needs to be absolutely ga...
by dmills
Tue Jun 07, 2005 9:55 pm
Forum: Vacuum Technology (& FAQs)
Topic: Any cryopump knowhow?
Replies: 2
Views: 1838

Any cryopump knowhow?

<t>Hi all, <br/> Having just done the ebay thing for a EBARA FS8 CRYOPUMP, <br/> compressor & hoses, I was wondering if there is anyone out <br/> there in the fusor world who knows the hairy details of how to <br/> run these things. <br/> <br/> Obviously preventing high energy particle beams fro...
by dmills
Sat May 28, 2005 10:24 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Seeking formula for conversion of electron volts to velocity
Replies: 8
Views: 3252

Re: Seeking formula for conversion of electron volts to velocity

<t>I **think** that for the electron case you need to include for the <br/> effect of approaching light speed, a 100Kev e- is up to well over <br/> 50% of C (Unless my math is totally pearshaped - always <br/> possible). <br/> <br/> Now nobody here is as far as I know working at those voltages, <br/...