Search found 212 matches

by Chris Trent
Thu Feb 07, 2013 4:37 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Cheap, 3d-printed inner grids
Replies: 20
Views: 14423

Re: Cheap, 3d-printed inner grids

<r>Here is the admittedly non-technical reference page for the stainless material at shapeways.<br/> <br/> <URL url="http://www.shapeways.com/materials/steel">http://www.shapeways.com/materials/steel</URL><br/> <br/> It is not e-beam sintered stainless steel, more like bonded and brazed stainless po...
by Chris Trent
Wed Dec 12, 2012 11:45 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Would this work for a first time fuser
Replies: 6
Views: 3619

Re: Would this work for a first time fuser

<t>Andrew, You have truly mastered the art of wandering from topic to topic. <br/> <br/> Do yourself, and us, a favor and do a lot of searching and reading on these forums. Voltage and Amperage requirements have been covered in tremendous detail in the past, as have vacuum configurations and equipme...
by Chris Trent
Mon Dec 03, 2012 8:00 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Creating a neutron source
Replies: 22
Views: 9509

Re: Creating a neutron source

<t>I wasn't kidding on that 1000 volt circuit first. Build it, then try get up to 2000V and 3000V from the 9v battery. If you make mistakes you will learn from them VERY quickly, sometimes in a rather spectacular or painful fashion. <br/> <br/> 15KV is far more dangerous and difficult to handle than...
by Chris Trent
Mon Dec 03, 2012 5:07 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Creating a neutron source
Replies: 22
Views: 9509

Re: Creating a neutron source

<t>If the only measuring equipment I've got is a multimeter, then you are truly a long way from any of what you have described in your posts thus far. If you are going to be dealing with nuclear science you will first need the appropriate tools to measure the results. If part of your process is supp...
by Chris Trent
Sun Dec 02, 2012 6:46 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Creating a neutron source
Replies: 22
Views: 9509

Re: Creating a neutron source

<t>As Chris Bradley says in a later post, we really need to find/create a really good, succinct primer on nuclear physics.<br/> <br/> Making isotopes is one thing, any chunk of uranium ore is making a variety of new isotopes all the time. Separating them from one another is something else entirely.<...
by Chris Trent
Sat Dec 01, 2012 8:36 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Creating a neutron source
Replies: 22
Views: 9509

Re: Creating a neutron source

<t>This would not appear feasible for a number of reasons.<br/> <br/> First, Please read up on electron capture. As I recall the neutron is retained by the nucleus and you will instead get a 188KeV gamma.<br/> <br/> Second, an electrical arc will not impact the rate of radioactive decay (which is al...
by Chris Trent
Sun Apr 29, 2012 5:52 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Help with Arduino DAQ
Replies: 6
Views: 2334

Re: Help with Arduino DAQ

<t>I've got an arduino that I've been using for pump control. It works pretty well but I haven't done any graphing. Its a fairly simple matter to output analog pin readings to a serial port. In the arduino development environment they even have sample code for it. <br/> <br/> Enjoy the learning curv...
by Chris Trent
Sat Apr 21, 2012 4:25 pm
Forum: Vacuum Technology (& FAQs)
Topic: Simple turbo pump controller
Replies: 49
Views: 31146

Re: Simple turbo pump controller - PCB design complete and operational

<t>Thanks for the post. That high starting current surge explains a few things. <br/> <br/> The circuit I was using works overall, but I toasted several iterations of it before moving on to a micro-controller based solution with over-current protection.<br/> <br/> I'll post details on that later if ...
by Chris Trent
Mon Nov 07, 2011 4:48 am
Forum: Vacuum Technology (& FAQs)
Topic: Vacuum Pump problem
Replies: 8
Views: 3521

Re: Vacuum Pump problem

You will also mist your oil away pretty quickly if you are constantly pumping at atmospheric pressure.

Make sure to blank off the inlet of the pump or have it connected to a sealed system before running it for long periods of time.
by Chris Trent
Fri Jul 22, 2011 11:23 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Bell Jar Viable for Fusion?
Replies: 17
Views: 4613

Re: Bell Jar Viable for Fusion?

<t>Unfortunately I don't have any specifics either. It's an organic polymer so I suspect it will eventually degrade under X-Ray and UV exposure, probably either yellowing or crazing. <br/> <br/> I don't recall any reports of it happening, and I know a number of folks here have Lexan shields for one ...