Search found 37 matches

by bk8509a
Sat Apr 24, 2010 7:03 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: risk assessment
Replies: 13
Views: 5368

Re: risk assessment

<r>Steve,<br/> <br/> I don't know how good you are at math, but here's ALL you need to calculate x ray safety from THE most reliable source when it comes to standards: NIST.<br/> <br/> <URL url="http://www.nist.gov/physlab/data/xraycoef/index.cfm">http://www.nist.gov/physlab/data/xraycoef/index.cfm<...
by bk8509a
Sat Apr 24, 2010 5:00 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Langmuir Probe Creation and Design
Replies: 24
Views: 11141

Re: Langmuir Probe Creation and Design

<r>In advance, sorry for the long post. I will try to comment on all the great advice and then I'll talk to you about the newest problem that has come up.<br/> <br/> Dustin,<br/> <br/> I think you might be on to something about how I can't detect the whizzing by electrons. I have new data to refute ...
by bk8509a
Fri Apr 23, 2010 3:08 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Langmuir Probe Creation and Design
Replies: 24
Views: 11141

Re: Langmuir Probe Creation and Design

Chris,

The whole paper is on the files forum now.
by bk8509a
Fri Apr 23, 2010 3:06 pm
Forum: Files
Topic: Triple Probe Full Paper
Replies: 0
Views: 2494

Triple Probe Full Paper

Triple probe paper for instantaneous plasma display.
Chen, Sin-Li, and T. Sekiguchi. ``Instantaneous Direct-Display System of
Plasma Parameters by Means of Triple Probe.'' Journal of Applied Physics
36.8 (1965): 2363-375. Print.
by bk8509a
Fri Apr 23, 2010 12:56 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: risk assessment
Replies: 13
Views: 5368

Re: risk assessment

It will lower risk, and money.

Check out number 6 on that list: "Bankruptcy".
by bk8509a
Fri Apr 23, 2010 12:54 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Langmuir Probe Creation and Design
Replies: 24
Views: 11141

Re: Langmuir Probe Creation and Design

<t>Chris, the probe is a triple probe and only needs current if you want to determine electron density. I have no electron saturation current, ion saturation current, or any graphs that I need pick data off of. I get a straight number out, every half second.<br/> <br/> I'm using equation 16 of the p...
by bk8509a
Fri Apr 23, 2010 5:25 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Langmuir Probe Creation and Design
Replies: 24
Views: 11141

Re: Langmuir Probe Creation and Design

<t>My first series of data is in. I've taken measurements with a probe an inch outside of my outer, grounded grid. I wasn't sure of what voltages I was going to find or if the probe was going to get too hot, so I put it in the safest place in the fusor. The measurements are interesting, to say the l...
by bk8509a
Sat Apr 03, 2010 3:26 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Langmuir Probe Creation and Design
Replies: 24
Views: 11141

Re: Langmuir Probe Creation and Design

Wouldn't the oxide layer immediately get sputtered off? All the literature I've read has the probe with a Tungsten tip.
by bk8509a
Fri Apr 02, 2010 4:00 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Langmuir Probe Creation and Design
Replies: 24
Views: 11141

Langmuir Probe Creation and Design

<t>In advance: This is going to be a long post, but pretty much a intro on how to build a Langmuir probe. As I do the rest, it will follow.<br/> <br/> I browsed around on the site to see if anyone here has produced a Langmuir probe. There were a few 'don't try it wont works' and thats about it. To m...
by bk8509a
Mon Mar 29, 2010 1:14 pm
Forum: Vacuum Technology (& FAQs)
Topic: would this be a good vacuum pump to get?
Replies: 5
Views: 1956

Re: would this be a good vacuum pump to get?

<r>Steven,<br/> <br/> I spent 200 USD on a pump with a KF16 output/input and an oil mist filter. The pump is capable, with a fore line trap, of going to .1 micron. Right now I can get it to around 2.7 microns.<br/> <br/> The pump you're showing pump goes to 75 microns, doesn't seem to have KF nipple...