Search found 49 matches

by aka47
Tue Jan 15, 2013 9:16 am
Forum: Vacuum Technology (& FAQs)
Topic: Swagelok compression fittings
Replies: 10
Views: 4198

Re: Swagelok compression fittings

<r>That sounds useful.<br/> <br/> There is a guy with a glass blowing web site that does a lot of stuff and uses a similar technique. But using standard brass compression plumbing fittings.<br/> <br/> <URL url="http://www.teralab.co.uk/Glass_Blowing/Pump_Unions/Pump_Unions_Page1.htm"><LINK_TEXT text...
by aka47
Mon Jan 14, 2013 7:53 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Could an entire Fusor be 3D printed?
Replies: 3
Views: 1731

Re: Could an entire Fusor be 3D printed?

<r>The simple answer is, no, an entire fusor could not be 3D printed.<br/> <br/> However some component parts could be directly printed, you need to be pretty selective, aware of the limitations and for some of the more challenging componets that are printable commercial producers may need to be inv...
by aka47
Mon Jan 14, 2013 8:56 am
Forum: Vacuum Technology (& FAQs)
Topic: Spark plug opened
Replies: 40
Views: 12244

Re: Spark plug opened

Hmmm just trying to visualise that.

You didn’t happen to take some piccys did you ??

Take that back helps if I read the original posting before replying.

The piccys don't come through on my email.

Sorry guys
by aka47
Sun Jan 13, 2013 12:47 pm
Forum: Vacuum Technology (& FAQs)
Topic: Edwards Active Inverted Magnetron information
Replies: 12
Views: 4597

Re: Edwards Active Inverted Magnetron information

<t>> I have had no problem doing continuous math on them.<br/> <br/> They will do it, but dog slowly as floating point arithmetic is all software/library based. There is no onboard support for it. <br/> <br/> Whether you want to do it is a personal judgement call. I guess mostly as you won't know wh...
by aka47
Sat Jan 12, 2013 3:23 pm
Forum: Vacuum Technology (& FAQs)
Topic: Edwards Active Inverted Magnetron information
Replies: 12
Views: 4597

Re: Edwards Active Inverted Magnetron information

<t>I really wouldn’t bother doing continuous Math with an Arduino, they really are no good for this. <br/> <br/> Use a look up table (LUT).<br/> <br/> The Atmega 168 (Arduino Diecimilla) has 16K of flash to play with.<br/> <br/> To avoid typing in all the values write yourself a script or spreadshee...
by aka47
Sat Jan 05, 2013 12:27 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Mini-five minute fusor
Replies: 12
Views: 5112

Re: Mini-five minute fusor

Nice

I like those. It is interesting how small and simple the construction can be.
by aka47
Tue Jan 01, 2013 1:27 am
Forum: Ion Gun Design and Construction (& FAQs)
Topic: Questions about the practical construction of a Linac
Replies: 54
Views: 21311

Re: Questions about the practical construction of a Linac

<t>All of the copied in text translates to (In lay persons terms):-<br/> <br/> Coat a bit of view port with ZnS (Ag) and watch for it sparkling.<br/> <br/> Bottom line though, is that if you haven’t got dark adapted eyes (Not trivial) and enough flux use a PMT.<br/> <br/> Trying to do the work of Ru...
by aka47
Sat Dec 15, 2012 8:29 am
Forum: Vacuum Technology (& FAQs)
Topic: Types of nuts/bolts for CF flanges
Replies: 9
Views: 2376

Re: Types of nuts/bolts for CF flanges

<t>Automotive copper loaded antiseize compound is sold here in the UK as "Copper Slip" and is used on the bolts that hold brake components together and wheel studs in due to the fact that they have a tendency to weld themselves together from combined pressure and heat.<br/> <br/> So a garage or plac...
by aka47
Thu Nov 22, 2012 8:04 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Hearing Radiation
Replies: 26
Views: 7258

Re: Hearing Radiation

<t>Nice one Carl. Well done.<br/> <br/> On further ideas.<br/> <br/> I would be looking at decoupling the Radiation and Sound making. Sounds like you are falling over the fact it is perhaps monophonic and perhaps need polyphony. But without seeing details could'nt be sure.<br/> <br/> An alternative ...
by aka47
Sun Nov 18, 2012 7:45 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Hearing Radiation
Replies: 26
Views: 7258

Re: Hearing Radiation

<r>Wow that's cool, well spotted frank.<br/> <br/> I was musing the other day how an electric or acoustic guitar would sound played by Alpha particles if it was set up as a spark detector after looking at some of Carl's work.<br/> <br/> <URL url="http://www.youtube.com/watch?v=HO8VDf_rCXo">http://ww...